From 26500c5ca59a10b07880c63a78881f65bdd60247 Mon Sep 17 00:00:00 2001 From: Sebas LG Date: Mon, 28 Mar 2016 15:26:33 +0200 Subject: [PATCH 001/294] 1.x: Fix typos in documentation and some code --- build.gradle | 2 +- src/main/java/rx/Completable.java | 18 ++++++------ src/main/java/rx/Observable.java | 28 +++++++++---------- src/main/java/rx/Producer.java | 2 +- src/main/java/rx/Single.java | 6 ++-- src/main/java/rx/Subscriber.java | 4 +-- .../internal/operators/BackpressureUtils.java | 4 +-- .../operators/OnSubscribeGroupJoin.java | 2 +- .../operators/OperatorBufferWithTime.java | 2 +- .../rx/internal/operators/OperatorMerge.java | 2 +- .../OperatorOnBackpressureLatest.java | 2 +- .../internal/operators/OperatorPublish.java | 2 +- .../rx/internal/operators/OperatorReplay.java | 6 ++-- .../internal/operators/OperatorTakeTimed.java | 2 +- .../rx/internal/producers/QueuedProducer.java | 2 +- .../producers/QueuedValueProducer.java | 2 +- .../GenericScheduledExecutorService.java | 2 +- .../util/BackpressureDrainManager.java | 2 +- .../unsafe/ConcurrentCircularArrayQueue.java | 2 +- .../rx/observables/BlockingObservable.java | 2 +- .../rx/observables/GroupedObservable.java | 2 +- .../RxJavaObservableExecutionHook.java | 24 ++++++++-------- src/main/java/rx/plugins/RxJavaPlugins.java | 2 +- .../java/rx/plugins/RxJavaSchedulersHook.java | 2 +- .../rx/plugins/RxJavaSingleExecutionHook.java | 24 ++++++++-------- src/main/java/rx/schedulers/Schedulers.java | 2 +- src/main/java/rx/subjects/ReplaySubject.java | 4 +-- src/main/java/rx/subjects/TestSubject.java | 6 ++-- src/test/java/rx/BackpressureTests.java | 6 ++-- src/test/java/rx/SingleTest.java | 2 +- src/test/java/rx/SubscriberTest.java | 2 +- .../java/rx/exceptions/OnNextValueTest.java | 2 +- .../java/rx/exceptions/TestException.java | 2 +- .../operators/OnSubscribeUsingTest.java | 2 +- .../operators/OperatorConcatTest.java | 2 +- .../operators/OperatorFlatMapTest.java | 2 +- .../OperatorOnBackpressureBufferTest.java | 2 +- .../OperatorPublishFunctionTest.java | 4 +-- .../internal/operators/OperatorRetryTest.java | 2 +- .../operators/OperatorTimeoutTests.java | 2 +- .../OperatorTimeoutWithSelectorTest.java | 2 +- .../internal/operators/OperatorZipTest.java | 2 +- .../operators/SingleOnSubscribeUsingTest.java | 2 +- .../schedulers/TrampolineSchedulerTest.java | 2 +- .../ReplaySubjectBoundedConcurrencyTest.java | 2 +- .../ReplaySubjectConcurrencyTest.java | 2 +- .../CompositeSubscriptionTest.java | 2 +- .../SerialSubscriptionTests.java | 2 +- .../rx/test/TestObstructionDetection.java | 2 +- 49 files changed, 104 insertions(+), 104 deletions(-) diff --git a/build.gradle b/build.gradle index f465376da3..1806a43120 100644 --- a/build.gradle +++ b/build.gradle @@ -23,7 +23,7 @@ javadoc { options { windowTitle = "RxJava Javadoc ${project.version}" } - // Clear the following options to make the docs consitent with the old format + // Clear the following options to make the docs consistent with the old format options.addStringOption('top').value = '' options.addStringOption('doctitle').value = '' options.addStringOption('header').value = '' diff --git a/src/main/java/rx/Completable.java b/src/main/java/rx/Completable.java index f2e752c2b2..eb3cf76d54 100644 --- a/src/main/java/rx/Completable.java +++ b/src/main/java/rx/Completable.java @@ -752,7 +752,7 @@ static T requireNonNull(T o) { } /** - * Returns a Completable instance that fires its onComplete event after the given delay ellapsed. + * Returns a Completable instance that fires its onComplete event after the given delay elapsed. * @param delay the delay time * @param unit the delay unit * @return the new Completable instance @@ -762,7 +762,7 @@ public static Completable timer(long delay, TimeUnit unit) { } /** - * Returns a Completable instance that fires its onComplete event after the given delay ellapsed + * Returns a Completable instance that fires its onComplete event after the given delay elapsed * by using the supplied scheduler. * @param delay the delay time * @param unit the delay unit @@ -1040,7 +1040,7 @@ public void onSubscribe(Subscription d) { * @param timeout the timeout value * @param unit the timeout unit * @return true if the this Completable instance completed normally within the time limit, - * false if the timeout ellapsed before this Completable terminated. + * false if the timeout elapsed before this Completable terminated. * @throws RuntimeException wrapping an InterruptedException if the current thread is interrupted */ public final boolean await(long timeout, TimeUnit unit) { @@ -1239,7 +1239,7 @@ public final Completable doOnCompleted(Action0 onCompleted) { } /** - * Returns a Completable which calls the giveon onUnsubscribe callback if the child subscriber cancels + * Returns a Completable which calls the given onUnsubscribe callback if the child subscriber cancels * the subscription. * @param onUnsubscribe the callback to call when the child subscriber cancels the subscription * @return the new Completable instance @@ -1395,7 +1395,7 @@ public final Observable endWith(Observable next) { } /** - * Returns a Completable instace that calls the given onAfterComplete callback after this + * Returns a Completable instance that calls the given onAfterComplete callback after this * Completable completes normally. * @param onAfterComplete the callback to call after this Completable emits an onComplete event. * @return the new Completable instance @@ -1448,10 +1448,10 @@ public void onSubscribe(Subscription d) { /** * Subscribes to this Completable instance and blocks until it terminates or the specified timeout - * ellapses, then returns null for normal termination or the emitted exception if any. + * elapses, then returns null for normal termination or the emitted exception if any. * @return the throwable if this terminated with an error, null otherwise * @throws RuntimeException that wraps an InterruptedException if the wait is interrupted or - * TimeoutException if the specified timeout ellapsed before it + * TimeoutException if the specified timeout elapsed before it */ public final Throwable get(long timeout, TimeUnit unit) { requireNonNull(unit); @@ -2128,7 +2128,7 @@ public void call(Subscriber s) { } /** - * Convers this Completable into a Single which when this Completable completes normally, + * Converts this Completable into a Single which when this Completable completes normally, * calls the given supplier and emits its returned value through onSuccess. * @param completionValueFunc0 the value supplier called when this Completable completes normally * @return the new Single instance @@ -2175,7 +2175,7 @@ public void onSubscribe(Subscription d) { } /** - * Convers this Completable into a Single which when this Completable completes normally, + * Converts this Completable into a Single which when this Completable completes normally, * emits the given value through onSuccess. * @param completionValue the value to emit when this Completable completes normally * @return the new Single instance diff --git a/src/main/java/rx/Observable.java b/src/main/java/rx/Observable.java index b89bc431e2..74fcf88fe9 100644 --- a/src/main/java/rx/Observable.java +++ b/src/main/java/rx/Observable.java @@ -102,7 +102,7 @@ public static Observable create(OnSubscribe f) { * *

Note: the {@code SyncOnSubscribe} provides a generic way to fulfill data by iterating * over a (potentially stateful) function (e.g. reading data off of a channel, a parser, ). If your - * data comes directly from an asyrchronous/potentially concurrent source then consider using the + * data comes directly from an asynchronous/potentially concurrent source then consider using the * {@link Observable#create(AsyncOnSubscribe) asynchronous overload}. * *

@@ -3052,7 +3052,7 @@ public static Observable using( * Constructs an Observable that creates a dependent resource object which is disposed of just before * termination if you have set {@code disposeEagerly} to {@code true} and unsubscription does not occur * before termination. Otherwise resource disposal will occur on unsubscription. Eager disposal is - * particularly appropriate for a synchronous Observable that resuses resources. {@code disposeAction} will + * particularly appropriate for a synchronous Observable that reuses resources. {@code disposeAction} will * only be called once per subscription. *

* @@ -3094,7 +3094,7 @@ public static Observable using( * item emitted by each of those Observables; and so forth. *

* The resulting {@code Observable} returned from {@code zip} will invoke {@code onNext} as many times as - * the number of {@code onNext} invokations of the source Observable that emits the fewest items. + * the number of {@code onNext} invocations of the source Observable that emits the fewest items. *

* *

@@ -3128,7 +3128,7 @@ public static Observable zip(Iterable> ws, FuncN< * function applied to the second item emitted by each of those Observables; and so forth. *

* The resulting {@code Observable} returned from {@code zip} will invoke {@code onNext} as many times as - * the number of {@code onNext} invokations of the source Observable that emits the fewest items. + * the number of {@code onNext} invocations of the source Observable that emits the fewest items. *

* *

@@ -3900,7 +3900,7 @@ public final Observable> buffer(Observable boundary, int initialC * subscribe/unsubscribe behavior of all the {@link Subscriber}s. *

* When you call {@code cache}, it does not yet subscribe to the source Observable and so does not yet - * begin cacheing items. This only happens when the first Subscriber calls the resulting Observable's + * begin caching items. This only happens when the first Subscriber calls the resulting Observable's * {@code subscribe} method. *

* Note: You sacrifice the ability to unsubscribe from the origin when you use the {@code cache} @@ -3943,7 +3943,7 @@ public final Observable cache(int initialCapacity) { * subscribe/unsubscribe behavior of all the {@link Subscriber}s. *

* When you call {@code cache}, it does not yet subscribe to the source Observable and so does not yet - * begin cacheing items. This only happens when the first Subscriber calls the resulting Observable's + * begin caching items. This only happens when the first Subscriber calls the resulting Observable's * {@code subscribe} method. *

* Note: You sacrifice the ability to unsubscribe from the origin when you use the {@code cache} @@ -4367,7 +4367,7 @@ public final Observable switchIfEmpty(Observable alternate) { } /** - * Returns an Observable that delays the subscription to and emissions from the souce Observable via another + * Returns an Observable that delays the subscription to and emissions from the source Observable via another * Observable on a per-item basis. *

* @@ -5357,7 +5357,7 @@ public final Observable concatMapEager(Func1 * *

@@ -5821,7 +5821,7 @@ public final Observable flatMapIterable(Func1 * the collection element type * @param - * the type of item emited by the resulting Observable + * the type of item emitted by the resulting Observable * @param collectionSelector * a function that returns an Iterable sequence of values for each item emitted by the source * Observable @@ -5851,7 +5851,7 @@ public final Observable flatMapIterable(Func1 * the collection element type * @param - * the type of item emited by the resulting Observable + * the type of item emitted by the resulting Observable * @param collectionSelector * a function that returns an Iterable sequence of values for each item emitted by the source * Observable @@ -6813,7 +6813,7 @@ public final Observable reduce(Func2 accumulator) { *

* *

- * This technique, which is called "reduce" here, is sometimec called "aggregate," "fold," "accumulate," + * This technique, which is called "reduce" here, is sometimes called "aggregate," "fold," "accumulate," * "compress," or "inject" in other programming contexts. Groovy, for instance, has an {@code inject} method * that does a similar operation on lists. *

@@ -10355,7 +10355,7 @@ public final Observable> window(long timespan, long timeshift, Tim * new window * @param unit * the unit of time that applies to the {@code timespan} argument - * @return an Observable that emits connected, non-overlapping windows represending items emitted by the + * @return an Observable that emits connected, non-overlapping windows representing items emitted by the * source Observable during fixed, consecutive durations * @see ReactiveX operators documentation: Window */ @@ -10581,9 +10581,9 @@ private static class Holder { } /** - * Returns a singleton instance of NeverObservble (cast to the generic type). + * Returns a singleton instance of NeverObservable (cast to the generic type). * - * @return + * @return singleton instance of NeverObservable (cast to the generic type) */ @SuppressWarnings("unchecked") static NeverObservable instance() { diff --git a/src/main/java/rx/Producer.java b/src/main/java/rx/Producer.java index 9bb9cc22d1..fb7f211e7c 100644 --- a/src/main/java/rx/Producer.java +++ b/src/main/java/rx/Producer.java @@ -21,7 +21,7 @@ * backpressure). * *

The request amount only affects calls to {@link Subscriber#onNext(Object)}; onError and onCompleted may appear without - * requrests. + * requests. * *

However, backpressure is somewhat optional in RxJava 1.x and Subscribers may not * receive a Producer via their {@link Subscriber#setProducer(Producer)} method and will run diff --git a/src/main/java/rx/Single.java b/src/main/java/rx/Single.java index f5e1156acc..628e716ed8 100644 --- a/src/main/java/rx/Single.java +++ b/src/main/java/rx/Single.java @@ -1719,7 +1719,7 @@ public final Subscription subscribe(Subscriber subscriber) { subscriber = new SafeSubscriber(subscriber); } - // The code below is exactly the same an unsafeSubscribe but not used because it would add a sigificent depth to alreay huge call stacks. + // The code below is exactly the same an unsafeSubscribe but not used because it would add a significant depth to already huge call stacks. try { // allow the hook to intercept and/or decorate hook.onSubscribeStart(this, onSubscribe).call(subscriber); @@ -2186,7 +2186,7 @@ public final Single timeout(long timeout, TimeUnit timeUnit, SingleReactiveX operators documentation: Timeout */ public final Single timeout(long timeout, TimeUnit timeUnit, Single other, Scheduler scheduler) { @@ -2630,7 +2630,7 @@ public static Single using( * Constructs an Single that creates a dependent resource object which is disposed of just before * termination if you have set {@code disposeEagerly} to {@code true} and unsubscription does not occur * before termination. Otherwise resource disposal will occur on unsubscription. Eager disposal is - * particularly appropriate for a synchronous Single that resuses resources. {@code disposeAction} will + * particularly appropriate for a synchronous Single that reuses resources. {@code disposeAction} will * only be called once per subscription. *

* diff --git a/src/main/java/rx/Subscriber.java b/src/main/java/rx/Subscriber.java index 67ac611e4c..cfbfcc2496 100644 --- a/src/main/java/rx/Subscriber.java +++ b/src/main/java/rx/Subscriber.java @@ -193,9 +193,9 @@ public void setProducer(Producer p) { toRequest = requested; producer = p; if (subscriber != null) { - // middle operator ... we pass thru unless a request has been made + // middle operator ... we pass through unless a request has been made if (toRequest == NOT_SET) { - // we pass-thru to the next producer as nothing has been requested + // we pass through to the next producer as nothing has been requested passToSubscriber = true; } } diff --git a/src/main/java/rx/internal/operators/BackpressureUtils.java b/src/main/java/rx/internal/operators/BackpressureUtils.java index cfbe282901..3d199567c6 100644 --- a/src/main/java/rx/internal/operators/BackpressureUtils.java +++ b/src/main/java/rx/internal/operators/BackpressureUtils.java @@ -246,10 +246,10 @@ static void postCompleteDrain(AtomicLong requested, Queue queue, Subscrib * in which we know the queue won't change anymore (i.e., done is always true * when looking at the classical algorithm and there is no error). * - * Note that we don't check for cancellation or emptyness upfront for two reasons: + * Note that we don't check for cancellation or emptiness upfront for two reasons: * 1) if e != r, the loop will do this and we quit appropriately * 2) if e == r, then either there was no outstanding requests or we emitted the requested amount - * and the execution simply falls to the e == r check below which checks for emptyness anyway. + * and the execution simply falls to the e == r check below which checks for emptiness anyway. */ while (e != r) { diff --git a/src/main/java/rx/internal/operators/OnSubscribeGroupJoin.java b/src/main/java/rx/internal/operators/OnSubscribeGroupJoin.java index 4b7509c2d9..a8f13fb5e7 100644 --- a/src/main/java/rx/internal/operators/OnSubscribeGroupJoin.java +++ b/src/main/java/rx/internal/operators/OnSubscribeGroupJoin.java @@ -28,7 +28,7 @@ import rx.subscriptions.*; /** - * Corrrelates two sequences when they overlap and groups the results. + * Correlates two sequences when they overlap and groups the results. * * @see MSDN: Observable.GroupJoin * @param the left value type diff --git a/src/main/java/rx/internal/operators/OperatorBufferWithTime.java b/src/main/java/rx/internal/operators/OperatorBufferWithTime.java index bbb723d2b3..b13fe2fa9e 100644 --- a/src/main/java/rx/internal/operators/OperatorBufferWithTime.java +++ b/src/main/java/rx/internal/operators/OperatorBufferWithTime.java @@ -90,7 +90,7 @@ public Subscriber call(final Subscriber> child) { bsub.scheduleChunk(); return bsub; } - /** Subscriber when the buffer chunking time and lenght differ. */ + /** Subscriber when the buffer chunking time and length differ. */ final class InexactSubscriber extends Subscriber { final Subscriber> child; final Worker inner; diff --git a/src/main/java/rx/internal/operators/OperatorMerge.java b/src/main/java/rx/internal/operators/OperatorMerge.java index a9c7b86b09..69e92bb08e 100644 --- a/src/main/java/rx/internal/operators/OperatorMerge.java +++ b/src/main/java/rx/internal/operators/OperatorMerge.java @@ -614,7 +614,7 @@ void emitLoop() { } /* - * We need to read done before innerSubscribers because innerSubcribers are added + * We need to read done before innerSubscribers because innerSubscribers are added * before done is set to true. If it were the other way around, we could read an empty * innerSubscribers, get paused and then read a done flag but an async producer * might have added more subscribers between the two. diff --git a/src/main/java/rx/internal/operators/OperatorOnBackpressureLatest.java b/src/main/java/rx/internal/operators/OperatorOnBackpressureLatest.java index 2bf909289e..15078b0614 100644 --- a/src/main/java/rx/internal/operators/OperatorOnBackpressureLatest.java +++ b/src/main/java/rx/internal/operators/OperatorOnBackpressureLatest.java @@ -50,7 +50,7 @@ public Subscriber call(Subscriber child) { return parent; } /** - * A terminatable producer which emits the latest items on request. + * A terminable producer which emits the latest items on request. * @param */ static final class LatestEmitter extends AtomicLong implements Producer, Subscription, Observer { diff --git a/src/main/java/rx/internal/operators/OperatorPublish.java b/src/main/java/rx/internal/operators/OperatorPublish.java index bd66fc86ab..347905e06e 100644 --- a/src/main/java/rx/internal/operators/OperatorPublish.java +++ b/src/main/java/rx/internal/operators/OperatorPublish.java @@ -486,7 +486,7 @@ void dispatch() { try { for (;;) { /* - * We need to read terminalEvent before checking the queue for emptyness because + * We need to read terminalEvent before checking the queue for emptiness because * all enqueue happens before setting the terminal event. * If it were the other way around, when the emission is paused between * checking isEmpty and checking terminalEvent, some other thread might diff --git a/src/main/java/rx/internal/operators/OperatorReplay.java b/src/main/java/rx/internal/operators/OperatorReplay.java index a76f2f3c0b..f4af56bcb9 100644 --- a/src/main/java/rx/internal/operators/OperatorReplay.java +++ b/src/main/java/rx/internal/operators/OperatorReplay.java @@ -377,7 +377,7 @@ boolean add(InnerProducer producer) { if (producers.compareAndSet(c, u)) { return true; } - // if failed, some other operation succeded (another add, remove or termination) + // if failed, some other operation succeeded (another add, remove or termination) // so retry } } @@ -633,7 +633,7 @@ public void request(long n) { if (compareAndSet(r, u)) { // increment the total request counter addTotalRequested(n); - // if successful, notify the parent dispacher this child can receive more + // if successful, notify the parent dispatcher this child can receive more // elements parent.manageRequests(); @@ -687,7 +687,7 @@ public long produced(long n) { } // try updating the request value if (compareAndSet(r, u)) { - // and return the udpated value + // and return the updated value return u; } // otherwise, some concurrent activity happened and we need to retry diff --git a/src/main/java/rx/internal/operators/OperatorTakeTimed.java b/src/main/java/rx/internal/operators/OperatorTakeTimed.java index ea56be87ac..faa95b4b79 100644 --- a/src/main/java/rx/internal/operators/OperatorTakeTimed.java +++ b/src/main/java/rx/internal/operators/OperatorTakeTimed.java @@ -24,7 +24,7 @@ import rx.observers.SerializedSubscriber; /** - * Takes values from the source until the specific time ellapses. + * Takes values from the source until the specific time elapses. * * @param * the result value type diff --git a/src/main/java/rx/internal/producers/QueuedProducer.java b/src/main/java/rx/internal/producers/QueuedProducer.java index 51747dd9b9..ed892bab30 100644 --- a/src/main/java/rx/internal/producers/QueuedProducer.java +++ b/src/main/java/rx/internal/producers/QueuedProducer.java @@ -76,7 +76,7 @@ public void request(long n) { } /** - * Offers a value to this producer and tries to emit any queud values + * Offers a value to this producer and tries to emit any queued values * if the child requests allow it. * @param value the value to enqueue and attempt to drain * @return true if the queue accepted the offer, false otherwise diff --git a/src/main/java/rx/internal/producers/QueuedValueProducer.java b/src/main/java/rx/internal/producers/QueuedValueProducer.java index d165a412b7..53853f2ccc 100644 --- a/src/main/java/rx/internal/producers/QueuedValueProducer.java +++ b/src/main/java/rx/internal/producers/QueuedValueProducer.java @@ -73,7 +73,7 @@ public void request(long n) { } /** - * Offers a value to this producer and tries to emit any queud values + * Offers a value to this producer and tries to emit any queued values * if the child requests allow it. * @param value the value to enqueue and attempt to drain * @return true if the queue accepted the offer, false otherwise diff --git a/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java b/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java index 87f7ec5f88..e322945068 100644 --- a/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java +++ b/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java @@ -44,7 +44,7 @@ public final class GenericScheduledExecutorService implements SchedulerLifecycle SHUTDOWN.shutdown(); } - /* Schedulers needs acces to this in order to work with the lifecycle. */ + /* Schedulers needs access to this in order to work with the lifecycle. */ public final static GenericScheduledExecutorService INSTANCE = new GenericScheduledExecutorService(); private final AtomicReference executor; diff --git a/src/main/java/rx/internal/util/BackpressureDrainManager.java b/src/main/java/rx/internal/util/BackpressureDrainManager.java index c90e9591df..3e670e0e53 100644 --- a/src/main/java/rx/internal/util/BackpressureDrainManager.java +++ b/src/main/java/rx/internal/util/BackpressureDrainManager.java @@ -72,7 +72,7 @@ public interface BackpressureQueueCallback { /** The callbacks to manage the drain. */ protected final BackpressureQueueCallback actual; /** - * Constructs a backpressure drain manager with 0 requesedCount, + * Constructs a backpressure drain manager with 0 requestedCount, * no terminal event and not emitting. * @param actual he queue callback to check for new element availability */ diff --git a/src/main/java/rx/internal/util/unsafe/ConcurrentCircularArrayQueue.java b/src/main/java/rx/internal/util/unsafe/ConcurrentCircularArrayQueue.java index 86a8db0b19..a8b9990b56 100644 --- a/src/main/java/rx/internal/util/unsafe/ConcurrentCircularArrayQueue.java +++ b/src/main/java/rx/internal/util/unsafe/ConcurrentCircularArrayQueue.java @@ -29,7 +29,7 @@ abstract class ConcurrentCircularArrayQueueL0Pad extends AbstractQueue imp /** * A concurrent access enabling class used by circular array based queues this class exposes an offset computation * method along with differently memory fenced load/store methods into the underlying array. The class is pre-padded and - * the array is padded on either side to help with False sharing prvention. It is expected theat subclasses handle post + * the array is padded on either side to help with False sharing prevention. It is expected that subclasses handle post * padding. *

* Offset calculation is separate from access to enable the reuse of a give compute offset. diff --git a/src/main/java/rx/observables/BlockingObservable.java b/src/main/java/rx/observables/BlockingObservable.java index c5b3588e32..a44bf85558 100644 --- a/src/main/java/rx/observables/BlockingObservable.java +++ b/src/main/java/rx/observables/BlockingObservable.java @@ -543,7 +543,7 @@ public void onCompleted() { /** Constant indicating the setProducer method should be called. */ static final Object SET_PRODUCER = new Object(); - /** Indicates an unsubscripton happened */ + /** Indicates an unsubscription happened */ static final Object UNSUBSCRIBE = new Object(); /** diff --git a/src/main/java/rx/observables/GroupedObservable.java b/src/main/java/rx/observables/GroupedObservable.java index ad9ceb9370..0dccce036d 100644 --- a/src/main/java/rx/observables/GroupedObservable.java +++ b/src/main/java/rx/observables/GroupedObservable.java @@ -95,7 +95,7 @@ protected GroupedObservable(K key, OnSubscribe onSubscribe) { } /** - * Returns the key that identifies the group of items emited by this {@code GroupedObservable} + * Returns the key that identifies the group of items emitted by this {@code GroupedObservable} * * @return the key that the items emitted by this {@code GroupedObservable} were grouped by */ diff --git a/src/main/java/rx/plugins/RxJavaObservableExecutionHook.java b/src/main/java/rx/plugins/RxJavaObservableExecutionHook.java index 22bca81286..0413fe6a32 100644 --- a/src/main/java/rx/plugins/RxJavaObservableExecutionHook.java +++ b/src/main/java/rx/plugins/RxJavaObservableExecutionHook.java @@ -44,12 +44,12 @@ public abstract class RxJavaObservableExecutionHook { * Invoked during the construction by {@link Observable#create(OnSubscribe)} *

* This can be used to decorate or replace the onSubscribe function or just perform extra - * logging, metrics and other such things and pass-thru the function. + * logging, metrics and other such things and pass through the function. * * @param f * original {@link OnSubscribe}<{@code T}> to be executed * @return {@link OnSubscribe}<{@code T}> function that can be modified, decorated, replaced or just - * returned as a pass-thru + * returned as a pass through */ public OnSubscribe onCreate(OnSubscribe f) { return f; @@ -59,15 +59,15 @@ public OnSubscribe onCreate(OnSubscribe f) { * Invoked before {@link Observable#subscribe(rx.Subscriber)} is about to be executed. *

* This can be used to decorate or replace the onSubscribe function or just perform extra - * logging, metrics and other such things and pass-thru the function. + * logging, metrics and other such things and pass through the function. * * @param onSubscribe * original {@link OnSubscribe}<{@code T}> to be executed * @return {@link OnSubscribe}<{@code T}> function that can be modified, decorated, replaced or just - * returned as a pass-thru + * returned as a pass through */ public OnSubscribe onSubscribeStart(Observable observableInstance, final OnSubscribe onSubscribe) { - // pass-thru by default + // pass through by default return onSubscribe; } @@ -76,15 +76,15 @@ public OnSubscribe onSubscribeStart(Observable observableIns * {@link Subscription}. *

* This can be used to decorate or replace the {@link Subscription} instance or just perform extra logging, - * metrics and other such things and pass-thru the subscription. + * metrics and other such things and pass through the subscription. * * @param subscription * original {@link Subscription} * @return {@link Subscription} subscription that can be modified, decorated, replaced or just returned as a - * pass-thru + * pass through */ public Subscription onSubscribeReturn(Subscription subscription) { - // pass-thru by default + // pass through by default return subscription; } @@ -96,10 +96,10 @@ public Subscription onSubscribeReturn(Subscription subscription) { * * @param e * Throwable thrown by {@link Observable#subscribe(Subscriber)} - * @return Throwable that can be decorated, replaced or just returned as a pass-thru + * @return Throwable that can be decorated, replaced or just returned as a pass through */ public Throwable onSubscribeError(Throwable e) { - // pass-thru by default + // pass through by default return e; } @@ -108,12 +108,12 @@ public Throwable onSubscribeError(Throwable e) { * {@link Observable} and the return value is used as the lifted function *

* This can be used to decorate or replace the {@link Operator} instance or just perform extra - * logging, metrics and other such things and pass-thru the onSubscribe. + * logging, metrics and other such things and pass through the onSubscribe. * * @param lift * original {@link Operator}{@code } * @return {@link Operator}{@code } function that can be modified, decorated, replaced or just - * returned as a pass-thru + * returned as a pass through */ public Operator onLift(final Operator lift) { return lift; diff --git a/src/main/java/rx/plugins/RxJavaPlugins.java b/src/main/java/rx/plugins/RxJavaPlugins.java index 9678a32e15..6391a91185 100644 --- a/src/main/java/rx/plugins/RxJavaPlugins.java +++ b/src/main/java/rx/plugins/RxJavaPlugins.java @@ -36,7 +36,7 @@ * * Where the {@code .class} property contains the simple classname from above and the {@code .impl} * contains the fully qualified name of the implementation class. The {@code [index]} can be - * any short string or number of your chosing. For example, you can now define a custom + * any short string or number of your choosing. For example, you can now define a custom * {@code RxJavaErrorHandler} via two system property: * 


  * rxjava.plugin.1.class=RxJavaErrorHandler
diff --git a/src/main/java/rx/plugins/RxJavaSchedulersHook.java b/src/main/java/rx/plugins/RxJavaSchedulersHook.java
index 3bf923464a..133cdc363a 100644
--- a/src/main/java/rx/plugins/RxJavaSchedulersHook.java
+++ b/src/main/java/rx/plugins/RxJavaSchedulersHook.java
@@ -71,7 +71,7 @@ public Scheduler getNewThreadScheduler() {
 
     /**
      * Invoked before the Action is handed over to the scheduler.  Can be used for wrapping/decorating/logging.
-     * The default is just a passthrough.
+     * The default is just a pass through.
      * @param action action to schedule
      * @return wrapped action to schedule
      */
diff --git a/src/main/java/rx/plugins/RxJavaSingleExecutionHook.java b/src/main/java/rx/plugins/RxJavaSingleExecutionHook.java
index 9fce6531f3..65c7ad3155 100644
--- a/src/main/java/rx/plugins/RxJavaSingleExecutionHook.java
+++ b/src/main/java/rx/plugins/RxJavaSingleExecutionHook.java
@@ -43,12 +43,12 @@ public abstract class RxJavaSingleExecutionHook {
      * Invoked during the construction by {@link Single#create(Single.OnSubscribe)}
      * 

      * This can be used to decorate or replace the onSubscribe function or just perform extra
-     * logging, metrics and other such things and pass-thru the function.
+     * logging, metrics and other such things and pass through the function.
      *
      * @param f
      *            original {@link Single.OnSubscribe}<{@code T}> to be executed
      * @return {@link Single.OnSubscribe}<{@code T}> function that can be modified, decorated, replaced or just
-     *         returned as a pass-thru
+     *         returned as a pass through
      */
     public  Single.OnSubscribe onCreate(Single.OnSubscribe f) {
         return f;
@@ -58,15 +58,15 @@ public  Single.OnSubscribe onCreate(Single.OnSubscribe f) {
      * Invoked before {@link Single#subscribe(Subscriber)} is about to be executed.
      * 

      * This can be used to decorate or replace the onSubscribe function or just perform extra
-     * logging, metrics and other such things and pass-thru the function.
+     * logging, metrics and other such things and pass through the function.
      *
      * @param onSubscribe
      *            original {@link Observable.OnSubscribe}<{@code T}> to be executed
      * @return {@link Observable.OnSubscribe}<{@code T}> function that can be modified, decorated, replaced or just
-     *         returned as a pass-thru
+     *         returned as a pass through
      */
     public  Observable.OnSubscribe onSubscribeStart(Single singleInstance, final Observable.OnSubscribe onSubscribe) {
-        // pass-thru by default
+        // pass through by default
         return onSubscribe;
     }
 
@@ -75,15 +75,15 @@ public  Observable.OnSubscribe onSubscribeStart(Single single
      * {@link Subscription}.
      * 

      * This can be used to decorate or replace the {@link Subscription} instance or just perform extra logging,
-     * metrics and other such things and pass-thru the subscription.
+     * metrics and other such things and pass through the subscription.
      *
      * @param subscription
      *            original {@link Subscription}
      * @return {@link Subscription} subscription that can be modified, decorated, replaced or just returned as a
-     *         pass-thru
+     *         pass through
      */
     public  Subscription onSubscribeReturn(Subscription subscription) {
-        // pass-thru by default
+        // pass through by default
         return subscription;
     }
 
@@ -95,10 +95,10 @@ public  Subscription onSubscribeReturn(Subscription subscription) {
      *
      * @param e
      *            Throwable thrown by {@link Single#subscribe(Subscriber)}
-     * @return Throwable that can be decorated, replaced or just returned as a pass-thru
+     * @return Throwable that can be decorated, replaced or just returned as a pass through
      */
     public  Throwable onSubscribeError(Throwable e) {
-        // pass-thru by default
+        // pass through by default
         return e;
     }
 
@@ -107,12 +107,12 @@ public  Throwable onSubscribeError(Throwable e) {
      * {@link Single} and the return value is used as the lifted function
      * 

      * This can be used to decorate or replace the {@link Observable.Operator} instance or just perform extra
-     * logging, metrics and other such things and pass-thru the onSubscribe.
+     * logging, metrics and other such things and pass through the onSubscribe.
      *
      * @param lift
      *            original {@link Observable.Operator}{@code }
      * @return {@link Observable.Operator}{@code } function that can be modified, decorated, replaced or just
-     *         returned as a pass-thru
+     *         returned as a pass through
      */
     public  Observable.Operator onLift(final Observable.Operator lift) {
         return lift;
diff --git a/src/main/java/rx/schedulers/Schedulers.java b/src/main/java/rx/schedulers/Schedulers.java
index 7dd8186616..0ec2d3a273 100644
--- a/src/main/java/rx/schedulers/Schedulers.java
+++ b/src/main/java/rx/schedulers/Schedulers.java
@@ -143,7 +143,7 @@ public static Scheduler from(Executor executor) {
      * Starts those standard Schedulers which support the SchedulerLifecycle interface.
      * 
The operation is idempotent and threadsafe.
      */
-    /* public testonly */ static void start() {
+    /* public test only */ static void start() {
         Schedulers s = INSTANCE;
         synchronized (s) {
             if (s.computationScheduler instanceof SchedulerLifecycle) {
diff --git a/src/main/java/rx/subjects/ReplaySubject.java b/src/main/java/rx/subjects/ReplaySubject.java
index 6b5b43c799..db8490f731 100644
--- a/src/main/java/rx/subjects/ReplaySubject.java
+++ b/src/main/java/rx/subjects/ReplaySubject.java
@@ -78,7 +78,7 @@ public static  ReplaySubject create() {
     /**
      * Creates an unbounded replay subject with the specified initial buffer capacity.
      * 

-     * Use this method to avoid excessive array reallocation while the internal buffer grows to accomodate new
+     * Use this method to avoid excessive array reallocation while the internal buffer grows to accommodate new
      * items. For example, if you know that the buffer will hold 32k items, you can ask the
      * {@code ReplaySubject} to preallocate its internal array with a capacity to hold that many items. Once
      * the items start to arrive, the internal array won't need to grow, creating less garbage and no overhead
@@ -525,7 +525,7 @@ public Integer replayObserverFromIndexTest(Integer idx, SubjectObserver 0) {
                 Object o = list.get(idx - 1);
                 if (nl.isCompleted(o) || nl.isError(o)) {
diff --git a/src/main/java/rx/subjects/TestSubject.java b/src/main/java/rx/subjects/TestSubject.java
index f7a0caee2a..db57feedd4 100644
--- a/src/main/java/rx/subjects/TestSubject.java
+++ b/src/main/java/rx/subjects/TestSubject.java
@@ -121,10 +121,10 @@ void _onError(final Throwable e) {
      *
      * @param e
      *         the {@code Throwable} to pass to the {@code onError} method
-     * @param dalayTime
+     * @param delayTime
      *         the number of milliseconds in the future relative to "now()" at which to call {@code onError}
      */
-    public void onError(final Throwable e, long dalayTime) {
+    public void onError(final Throwable e, long delayTime) {
         innerScheduler.schedule(new Action0() {
 
             @Override
@@ -132,7 +132,7 @@ public void call() {
                 _onError(e);
             }
 
-        }, dalayTime, TimeUnit.MILLISECONDS);
+        }, delayTime, TimeUnit.MILLISECONDS);
     }
 
     /**
diff --git a/src/test/java/rx/BackpressureTests.java b/src/test/java/rx/BackpressureTests.java
index e46dfebcb5..393c8155cf 100644
--- a/src/test/java/rx/BackpressureTests.java
+++ b/src/test/java/rx/BackpressureTests.java
@@ -96,7 +96,7 @@ public void testMergeSync() {
         assertEquals(NUM, ts.getOnNextEvents().size());
         // either one can starve the other, but neither should be capable of doing more than 5 batches (taking 4.1)
         // TODO is it possible to make this deterministic rather than one possibly starving the other?
-        // benjchristensen => In general I'd say it's not worth trying to make it so, as "fair" algoritms generally take a performance hit
+        // benjchristensen => In general I'd say it's not worth trying to make it so, as "fair" algorithms generally take a performance hit
         assertTrue(c1.get() < RxRingBuffer.SIZE * 5);
         assertTrue(c2.get() < RxRingBuffer.SIZE * 5);
     }
@@ -118,7 +118,7 @@ public void testMergeAsync() {
         assertEquals(NUM, ts.getOnNextEvents().size());
         // either one can starve the other, but neither should be capable of doing more than 5 batches (taking 4.1)
         // TODO is it possible to make this deterministic rather than one possibly starving the other?
-        // benjchristensen => In general I'd say it's not worth trying to make it so, as "fair" algoritms generally take a performance hit
+        // benjchristensen => In general I'd say it's not worth trying to make it so, as "fair" algorithms generally take a performance hit
         assertTrue(c1.get() < RxRingBuffer.SIZE * 5);
         assertTrue(c2.get() < RxRingBuffer.SIZE * 5);
     }
@@ -164,7 +164,7 @@ public void testMergeAsyncThenObserveOn() {
         assertEquals(NUM, ts.getOnNextEvents().size());
         // either one can starve the other, but neither should be capable of doing more than 5 batches (taking 4.1)
         // TODO is it possible to make this deterministic rather than one possibly starving the other?
-        // benjchristensen => In general I'd say it's not worth trying to make it so, as "fair" algoritms generally take a performance hit
+        // benjchristensen => In general I'd say it's not worth trying to make it so, as "fair" algorithms generally take a performance hit
         // akarnokd => run this in a loop over 10k times and never saw values get as high as 7*SIZE, but since observeOn delays the unsubscription non-deterministically, the test will remain unreliable
         assertTrue(c1.get() < RxRingBuffer.SIZE * 7);
         assertTrue(c2.get() < RxRingBuffer.SIZE * 7);
diff --git a/src/test/java/rx/SingleTest.java b/src/test/java/rx/SingleTest.java
index 24855bf415..2952e22bfd 100644
--- a/src/test/java/rx/SingleTest.java
+++ b/src/test/java/rx/SingleTest.java
@@ -1340,7 +1340,7 @@ public void onErrorResumeNextViaSingleShouldPreventNullSingle() {
     }
 
     @Test
-    public void onErrorResumeNextViaFunctionShouldNotInterruptSuccesfulSingle() {
+    public void onErrorResumeNextViaFunctionShouldNotInterruptSuccessfulSingle() {
         TestSubscriber testSubscriber = new TestSubscriber();
 
         Single
diff --git a/src/test/java/rx/SubscriberTest.java b/src/test/java/rx/SubscriberTest.java
index 4b0f8f3f23..95d489e2c6 100644
--- a/src/test/java/rx/SubscriberTest.java
+++ b/src/test/java/rx/SubscriberTest.java
@@ -160,7 +160,7 @@ public void request(long n) {
             }
 
         });
-        // this will be Long.MAX_VALUE because it is decoupled and nothing requsted on the Operator subscriber
+        // this will be Long.MAX_VALUE because it is decoupled and nothing requested on the Operator subscriber
         assertEquals(Long.MAX_VALUE, r.get());
     }
 
diff --git a/src/test/java/rx/exceptions/OnNextValueTest.java b/src/test/java/rx/exceptions/OnNextValueTest.java
index b620e3eed0..00e5392dab 100644
--- a/src/test/java/rx/exceptions/OnNextValueTest.java
+++ b/src/test/java/rx/exceptions/OnNextValueTest.java
@@ -37,7 +37,7 @@
  *    this.value = value;
  * }
  * ```
- * I know this is probably a helpful error message in some cases but this can be a really costly operation when an objects toString is an expensive call or contains alot of output. I don't think we should be printing this in any case but if so it should be on demand (overload of getMessage()) rather than eagerly.
+ * I know this is probably a helpful error message in some cases but this can be a really costly operation when an objects toString is an expensive call or contains a lot of output. I don't think we should be printing this in any case but if so it should be on demand (overload of getMessage()) rather than eagerly.
  * 

  * In my case it is causing a toString of a large context object that is normally only used for debugging purposes which makes the exception logs hard to use and they are rolling over the log files very quickly.
  * 

diff --git a/src/test/java/rx/exceptions/TestException.java b/src/test/java/rx/exceptions/TestException.java
index 8d44a6f3af..16422b7f25 100644
--- a/src/test/java/rx/exceptions/TestException.java
+++ b/src/test/java/rx/exceptions/TestException.java
@@ -28,7 +28,7 @@ public TestException() {
     }
     /**
      * Create the test exception with the provided message.
-     * @param message the mesage to use
+     * @param message the message to use
      */
     public TestException(String message) {
         super(message);
diff --git a/src/test/java/rx/internal/operators/OnSubscribeUsingTest.java b/src/test/java/rx/internal/operators/OnSubscribeUsingTest.java
index 0ee4192add..a68605dd8c 100644
--- a/src/test/java/rx/internal/operators/OnSubscribeUsingTest.java
+++ b/src/test/java/rx/internal/operators/OnSubscribeUsingTest.java
@@ -108,7 +108,7 @@ public Observable call(Resource resource) {
         inOrder.verify(observer, times(1)).onCompleted();
         inOrder.verifyNoMoreInteractions();
 
-        // The resouce should be closed
+        // The resource should be closed
         verify(resource, times(1)).dispose();
     }
 
diff --git a/src/test/java/rx/internal/operators/OperatorConcatTest.java b/src/test/java/rx/internal/operators/OperatorConcatTest.java
index a54c435432..65aa1f5307 100644
--- a/src/test/java/rx/internal/operators/OperatorConcatTest.java
+++ b/src/test/java/rx/internal/operators/OperatorConcatTest.java
@@ -421,7 +421,7 @@ public void testConcatUnsubscribe() {
             Subscription s1 = concat.subscribe(observer);
             //Block main thread to allow observable "w1" to complete and observable "w2" to call onNext once.
             callOnce.await();
-            // Unsubcribe
+            // Unsubscribe
             s1.unsubscribe();
             //Unblock the observable to continue.
             okToContinue.countDown();
diff --git a/src/test/java/rx/internal/operators/OperatorFlatMapTest.java b/src/test/java/rx/internal/operators/OperatorFlatMapTest.java
index bb5127665c..56d733affd 100644
--- a/src/test/java/rx/internal/operators/OperatorFlatMapTest.java
+++ b/src/test/java/rx/internal/operators/OperatorFlatMapTest.java
@@ -324,7 +324,7 @@ public void call() {
             @Override
             public void call() {
                 if (subscriptionCount.decrementAndGet() < 0) {
-                    Assert.fail("Too many unsubscriptionss! " + subscriptionCount.get());
+                    Assert.fail("Too many unsubscriptions! " + subscriptionCount.get());
                 }
             }
         });
diff --git a/src/test/java/rx/internal/operators/OperatorOnBackpressureBufferTest.java b/src/test/java/rx/internal/operators/OperatorOnBackpressureBufferTest.java
index 59a971e1c1..ac01daa591 100644
--- a/src/test/java/rx/internal/operators/OperatorOnBackpressureBufferTest.java
+++ b/src/test/java/rx/internal/operators/OperatorOnBackpressureBufferTest.java
@@ -154,7 +154,7 @@ public void testFixBackpressureBoundedBufferDroppingOldest()
     }
 
     @Test
-    public void testFixBackpressueBoundedBufferDroppingLatest()
+    public void testFixBackpressureBoundedBufferDroppingLatest()
         throws InterruptedException {
 
         List events = overflowBufferWithBehaviour(100, 10, ON_OVERFLOW_DROP_LATEST);
diff --git a/src/test/java/rx/internal/operators/OperatorPublishFunctionTest.java b/src/test/java/rx/internal/operators/OperatorPublishFunctionTest.java
index 761dead9c5..0221c921ac 100644
--- a/src/test/java/rx/internal/operators/OperatorPublishFunctionTest.java
+++ b/src/test/java/rx/internal/operators/OperatorPublishFunctionTest.java
@@ -202,7 +202,7 @@ public Observable call(Observable o) {
     }
     
     @Test
-    public void oveflowMissingBackpressureException() {
+    public void overflowMissingBackpressureException() {
         TestSubscriber ts = TestSubscriber.create(0);
 
         PublishSubject ps = PublishSubject.create();
@@ -227,7 +227,7 @@ public Observable call(Observable o) {
     }
     
     @Test
-    public void oveflowMissingBackpressureExceptionDelayed() {
+    public void overflowMissingBackpressureExceptionDelayed() {
         TestSubscriber ts = TestSubscriber.create(0);
 
         PublishSubject ps = PublishSubject.create();
diff --git a/src/test/java/rx/internal/operators/OperatorRetryTest.java b/src/test/java/rx/internal/operators/OperatorRetryTest.java
index dc6eb510a9..0941c2d9d4 100644
--- a/src/test/java/rx/internal/operators/OperatorRetryTest.java
+++ b/src/test/java/rx/internal/operators/OperatorRetryTest.java
@@ -598,7 +598,7 @@ public void call() {
         }
     }
 
-    /** Observer for listener on seperate thread */
+    /** Observer for listener on separate thread */
     static final class AsyncObserver implements Observer {
 
         protected CountDownLatch latch = new CountDownLatch(1);
diff --git a/src/test/java/rx/internal/operators/OperatorTimeoutTests.java b/src/test/java/rx/internal/operators/OperatorTimeoutTests.java
index f14901176a..4c2ae8c75b 100644
--- a/src/test/java/rx/internal/operators/OperatorTimeoutTests.java
+++ b/src/test/java/rx/internal/operators/OperatorTimeoutTests.java
@@ -109,7 +109,7 @@ public void shouldTimeoutIfSecondOnNextNotWithinTimeout() {
     }
 
     @Test
-    public void shouldCompleteIfUnderlyingComletes() {
+    public void shouldCompleteIfUnderlyingCompletes() {
         @SuppressWarnings("unchecked")
         Observer observer = mock(Observer.class);
         Subscription subscription = withTimeout.subscribe(observer);
diff --git a/src/test/java/rx/internal/operators/OperatorTimeoutWithSelectorTest.java b/src/test/java/rx/internal/operators/OperatorTimeoutWithSelectorTest.java
index 4d2799c12b..51670b1b7a 100644
--- a/src/test/java/rx/internal/operators/OperatorTimeoutWithSelectorTest.java
+++ b/src/test/java/rx/internal/operators/OperatorTimeoutWithSelectorTest.java
@@ -426,7 +426,7 @@ public void run() {
             latchTimeout.set(true);
         }
 
-        assertFalse("CoundDownLatch timeout", latchTimeout.get());
+        assertFalse("CountDownLatch timeout", latchTimeout.get());
 
         InOrder inOrder = inOrder(o);
         inOrder.verify(o).onNext(1);
diff --git a/src/test/java/rx/internal/operators/OperatorZipTest.java b/src/test/java/rx/internal/operators/OperatorZipTest.java
index f13ba0ccb9..75f83f3e67 100644
--- a/src/test/java/rx/internal/operators/OperatorZipTest.java
+++ b/src/test/java/rx/internal/operators/OperatorZipTest.java
@@ -1241,7 +1241,7 @@ public Integer call(Integer i1, Integer i2) {
         assertEquals(expected, zip2.toList().toBlocking().single());
     }
     @Test
-    public void testUnboundedDownstreamOverrequesting() {
+    public void testUnboundedDownstreamOverRequesting() {
         Observable source = Observable.range(1, 2).zipWith(Observable.range(1, 2), new Func2() {
             @Override
             public Integer call(Integer t1, Integer t2) {
diff --git a/src/test/java/rx/internal/operators/SingleOnSubscribeUsingTest.java b/src/test/java/rx/internal/operators/SingleOnSubscribeUsingTest.java
index 238f373115..96fd9ab05e 100644
--- a/src/test/java/rx/internal/operators/SingleOnSubscribeUsingTest.java
+++ b/src/test/java/rx/internal/operators/SingleOnSubscribeUsingTest.java
@@ -94,7 +94,7 @@ public Single call(Resource resource) {
         inOrder.verify(observer).onCompleted();
         inOrder.verifyNoMoreInteractions();
 
-        // The resouce should be closed
+        // The resource should be closed
         verify(resource).dispose();
     }
 
diff --git a/src/test/java/rx/schedulers/TrampolineSchedulerTest.java b/src/test/java/rx/schedulers/TrampolineSchedulerTest.java
index a1bad56e34..aad14239a5 100644
--- a/src/test/java/rx/schedulers/TrampolineSchedulerTest.java
+++ b/src/test/java/rx/schedulers/TrampolineSchedulerTest.java
@@ -86,7 +86,7 @@ public void call() {
                 @Override
                 public void call() {
                     workers.add(doWorkOnNewTrampoline("B", workDone));
-                    // we unsubscribe worker2 ... it should not affect work scheduled on a separate Trampline.Worker
+                    // we unsubscribe worker2 ... it should not affect work scheduled on a separate Trampoline.Worker
                     worker2.unsubscribe();
                 }
     
diff --git a/src/test/java/rx/subjects/ReplaySubjectBoundedConcurrencyTest.java b/src/test/java/rx/subjects/ReplaySubjectBoundedConcurrencyTest.java
index 2f7461d2d5..8cbe051594 100644
--- a/src/test/java/rx/subjects/ReplaySubjectBoundedConcurrencyTest.java
+++ b/src/test/java/rx/subjects/ReplaySubjectBoundedConcurrencyTest.java
@@ -449,7 +449,7 @@ public void run() {
                 Assert.fail("Size decreased! " + lastSize + " -> " + size);
             }
             if ((size > 0) && !hasAny) {
-                Assert.fail("hasAnyValue reports emptyness but size doesn't");
+                Assert.fail("hasAnyValue reports emptiness but size doesn't");
             }
             if (size > values.length) {
                 Assert.fail("Got fewer values than size! " + size + " -> " + values.length);
diff --git a/src/test/java/rx/subjects/ReplaySubjectConcurrencyTest.java b/src/test/java/rx/subjects/ReplaySubjectConcurrencyTest.java
index a90c5ac0f3..e0744ef1d2 100644
--- a/src/test/java/rx/subjects/ReplaySubjectConcurrencyTest.java
+++ b/src/test/java/rx/subjects/ReplaySubjectConcurrencyTest.java
@@ -446,7 +446,7 @@ public void run() {
                 Assert.fail("Size decreased! " + lastSize + " -> " + size);
             }
             if ((size > 0) && !hasAny) {
-                Assert.fail("hasAnyValue reports emptyness but size doesn't");
+                Assert.fail("hasAnyValue reports emptiness but size doesn't");
             }
             if (size > values.length) {
                 Assert.fail("Got fewer values than size! " + size + " -> " + values.length);
diff --git a/src/test/java/rx/subscriptions/CompositeSubscriptionTest.java b/src/test/java/rx/subscriptions/CompositeSubscriptionTest.java
index 18ac45f198..dacb8e11f0 100644
--- a/src/test/java/rx/subscriptions/CompositeSubscriptionTest.java
+++ b/src/test/java/rx/subscriptions/CompositeSubscriptionTest.java
@@ -335,7 +335,7 @@ public void testTryRemoveIfNotIn() {
         csub.remove(csub1);
         csub.add(csub2);
         
-        csub.remove(csub1); // try removing agian
+        csub.remove(csub1); // try removing again
     }
 
     @Test(expected = NullPointerException.class)
diff --git a/src/test/java/rx/subscriptions/SerialSubscriptionTests.java b/src/test/java/rx/subscriptions/SerialSubscriptionTests.java
index 8c4482ce54..8e1d37fe2d 100644
--- a/src/test/java/rx/subscriptions/SerialSubscriptionTests.java
+++ b/src/test/java/rx/subscriptions/SerialSubscriptionTests.java
@@ -48,7 +48,7 @@ public void unsubscribingWithoutUnderlyingDoesNothing() {
     }
 
     @Test
-    public void getSubscriptionShouldReturnset() {
+    public void getSubscriptionShouldReturnSet() {
         final Subscription underlying = mock(Subscription.class);
         serialSubscription.set(underlying);
         assertSame(underlying, serialSubscription.get());
diff --git a/src/test/java/rx/test/TestObstructionDetection.java b/src/test/java/rx/test/TestObstructionDetection.java
index 859d138dd0..d24c6721ab 100644
--- a/src/test/java/rx/test/TestObstructionDetection.java
+++ b/src/test/java/rx/test/TestObstructionDetection.java
@@ -45,7 +45,7 @@ private TestObstructionDetection() {
     }
     /**
      * Checks if tasks can be immediately executed on the computation scheduler.
-     * @throws ObstructionExceptio if the schedulers don't respond within 1 second
+     * @throws ObstructionException if the schedulers don't respond within 1 second
      */
     public static void checkObstruction() {
         final int ncpu = Runtime.getRuntime().availableProcessors();

From db2e23274f9585add9469fc4305ab1c16bfbee3d Mon Sep 17 00:00:00 2001
From: Prat 
Date: Sat, 26 Mar 2016 23:43:07 -0400
Subject: [PATCH 002/294] 1.x: Add Completable.andThen(Single)

---
 src/main/java/rx/Completable.java             |  18 +++
 src/main/java/rx/Single.java                  |  25 +++-
 ...ngleOnSubscribeDelaySubscriptionOther.java |  91 ++++++++++++++
 src/test/java/rx/CompletableTest.java         |  55 +++++++++
 ...OnSubscribeDelaySubscriptionOtherTest.java | 112 ++++++++++++++++++
 5 files changed, 300 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java
 create mode 100644 src/test/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOtherTest.java

diff --git a/src/main/java/rx/Completable.java b/src/main/java/rx/Completable.java
index f2e752c2b2..357969565d 100644
--- a/src/main/java/rx/Completable.java
+++ b/src/main/java/rx/Completable.java
@@ -1114,6 +1114,24 @@ public final  Observable andThen(Observable next) {
         requireNonNull(next);
         return next.delaySubscription(toObservable());
     }
+
+    /**
+     * Returns a Single which will subscribe to this Completable and once that is completed then
+     * will subscribe to the {@code next} Single. An error event from this Completable will be
+     * propagated to the downstream subscriber and will result in skipping the subscription of the
+     * Single.
+     * 

+     *  
Scheduler:

+     *  
{@code andThen} does not operate by default on a particular {@link Scheduler}.

+     * 

+     *
+     * @param next the Single to subscribe after this Completable is completed, not null
+     * @return Single that composes this Completable and next
+     */
+    public final  Single andThen(Single next) {
+        requireNonNull(next);
+        return next.delaySubscription(toObservable());
+    }
     
     /**
      * Concatenates this Completable with another Completable.
diff --git a/src/main/java/rx/Single.java b/src/main/java/rx/Single.java
index f5e1156acc..a798073ff9 100644
--- a/src/main/java/rx/Single.java
+++ b/src/main/java/rx/Single.java
@@ -27,7 +27,6 @@
 import rx.internal.util.UtilityFunctions;
 import rx.observers.SafeSubscriber;
 import rx.observers.SerializedSubscriber;
-import rx.plugins.RxJavaObservableExecutionHook;
 import rx.plugins.RxJavaPlugins;
 import rx.plugins.RxJavaSingleExecutionHook;
 import rx.schedulers.Schedulers;
@@ -2671,4 +2670,28 @@ public static  Single using(
         return create(new SingleOnSubscribeUsing(resourceFactory, singleFactory, disposeAction, disposeEagerly));
     }
 
+    /**
+     * Returns a Single that delays the subscription to this Single
+     * until the Observable completes. In case the {@code onError} of the supplied observer throws,
+     * the exception will be propagated to the downstream subscriber
+     * and will result in skipping the subscription of this Single.
+     *
+     * 

+     * 

+     *  
Scheduler:

+     *  
This method does not operate by default on a particular {@link Scheduler}.

+     * 

+     *
+     * @param other the Observable that should trigger the subscription
+     *        to this Single.
+     * @return a Single that delays the subscription to this Single
+     *         until the Observable emits an element or completes normally.
+     */
+    @Experimental
+    public final Single delaySubscription(Observable other) {
+        if (other == null) {
+            throw new NullPointerException();
+        }
+        return create(new SingleOnSubscribeDelaySubscriptionOther(this, other));
+    }
 }
diff --git a/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java b/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java
new file mode 100644
index 0000000000..efd9cf517b
--- /dev/null
+++ b/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java
@@ -0,0 +1,91 @@
+/**
+ * Copyright 2014 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package rx.internal.operators;
+
+import rx.Observable;
+import rx.Single;
+import rx.SingleSubscriber;
+import rx.Subscriber;
+import rx.plugins.RxJavaPlugins;
+import rx.subscriptions.SerialSubscription;
+
+/**
+ * Delays the subscription to the Single until the Observable
+ * fires an event or completes.
+ *
+ * @param  the Single value type
+ */
+public final class SingleOnSubscribeDelaySubscriptionOther implements Single.OnSubscribe {
+    final Single main;
+    final Observable other;
+
+    public SingleOnSubscribeDelaySubscriptionOther(Single main, Observable other) {
+        this.main = main;
+        this.other = other;
+    }
+
+    @Override
+    public void call(final SingleSubscriber subscriber) {
+        final SingleSubscriber child = new SingleSubscriber() {
+            @Override
+            public void onSuccess(T value) {
+                subscriber.onSuccess(value);
+            }
+
+            @Override
+            public void onError(Throwable error) {
+                subscriber.onError(error);
+            }
+        };
+
+        final SerialSubscription serial = new SerialSubscription();
+        subscriber.add(serial);
+
+        Subscriber otherSubscriber = new Subscriber() {
+            boolean done;
+            @Override
+            public void onNext(Object t) {
+                onCompleted();
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                if (done) {
+                    RxJavaPlugins.getInstance().getErrorHandler().handleError(e);
+                    return;
+                }
+                done = true;
+                child.onError(e);
+            }
+
+            @Override
+            public void onCompleted() {
+                if (done) {
+                    return;
+                }
+                done = true;
+                serial.set(child);
+
+                main.subscribe(child);
+            }
+        };
+
+        serial.set(otherSubscriber);
+
+        other.subscribe(otherSubscriber);
+    }
+}
diff --git a/src/test/java/rx/CompletableTest.java b/src/test/java/rx/CompletableTest.java
index 894c72109f..2493da2356 100644
--- a/src/test/java/rx/CompletableTest.java
+++ b/src/test/java/rx/CompletableTest.java
@@ -418,6 +418,61 @@ public void andThenSubscribeOn() {
         ts.assertCompleted();
         ts.assertNoErrors();
     }
+
+    @Test
+    public void andThenSingle() {
+        TestSubscriber ts = new TestSubscriber(0);
+        Completable.complete().andThen(Single.just("foo")).subscribe(ts);
+        ts.requestMore(1);
+        ts.assertValue("foo");
+        ts.assertCompleted();
+        ts.assertNoErrors();
+        ts.assertUnsubscribed();
+    }
+
+    @Test
+    public void andThenSingleNever() {
+        TestSubscriber ts = new TestSubscriber(0);
+        Completable.never().andThen(Single.just("foo")).subscribe(ts);
+        ts.requestMore(1);
+        ts.assertNoValues();
+        ts.assertNoTerminalEvent();
+    }
+
+    @Test
+    public void andThenSingleError() {
+        TestSubscriber ts = new TestSubscriber(0);
+        final AtomicBoolean hasRun = new AtomicBoolean(false);
+        final Exception e = new Exception();
+        Completable.error(e)
+            .andThen(Single.create(new Single.OnSubscribe() {
+                @Override
+                public void call(SingleSubscriber s) {
+                    hasRun.set(true);
+                    s.onSuccess("foo");
+                }
+            }))
+            .subscribe(ts);
+        ts.assertNoValues();
+        ts.assertError(e);
+        ts.assertUnsubscribed();
+        Assert.assertFalse("Should not have subscribed to single when completable errors", hasRun.get());
+    }
+
+    @Test
+    public void andThenSingleSubscribeOn() {
+        TestSubscriber ts = new TestSubscriber(0);
+        TestScheduler scheduler = new TestScheduler();
+        Completable.complete().andThen(Single.just("foo").delay(1, TimeUnit.SECONDS, scheduler)).subscribe(ts);
+        ts.requestMore(1);
+        ts.assertNoValues();
+        ts.assertNoTerminalEvent();
+        scheduler.advanceTimeBy(1, TimeUnit.SECONDS);
+        ts.assertValue("foo");
+        ts.assertCompleted();
+        ts.assertNoErrors();
+        ts.assertUnsubscribed();
+    }
     
     @Test(expected = NullPointerException.class)
     public void createNull() {
diff --git a/src/test/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOtherTest.java b/src/test/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOtherTest.java
new file mode 100644
index 0000000000..c17f3b6e1f
--- /dev/null
+++ b/src/test/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOtherTest.java
@@ -0,0 +1,112 @@
+package rx.internal.operators;
+
+import org.junit.Assert;
+import org.junit.Test;
+import rx.Single;
+import rx.exceptions.TestException;
+import rx.functions.Action0;
+import rx.observers.TestSubscriber;
+import rx.subjects.PublishSubject;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class SingleOnSubscribeDelaySubscriptionOtherTest {
+    @Test
+    public void noPrematureSubscription() {
+        PublishSubject other = PublishSubject.create();
+
+        TestSubscriber ts = TestSubscriber.create();
+
+        final AtomicInteger subscribed = new AtomicInteger();
+
+        Single.just(1)
+            .doOnSubscribe(new Action0() {
+                @Override
+                public void call() {
+                    subscribed.getAndIncrement();
+                }
+            })
+            .delaySubscription(other)
+            .subscribe(ts);
+
+        ts.assertNotCompleted();
+        ts.assertNoErrors();
+        ts.assertNoValues();
+
+        Assert.assertEquals("Premature subscription", 0, subscribed.get());
+
+        other.onNext(1);
+
+        Assert.assertEquals("No subscription", 1, subscribed.get());
+
+        ts.assertValue(1);
+        ts.assertNoErrors();
+        ts.assertCompleted();
+    }
+
+    @Test
+    public void noPrematureSubscriptionToError() {
+        PublishSubject other = PublishSubject.create();
+
+        TestSubscriber ts = TestSubscriber.create();
+
+        final AtomicInteger subscribed = new AtomicInteger();
+
+        Single.error(new TestException())
+            .doOnSubscribe(new Action0() {
+                    @Override
+                    public void call() {
+                        subscribed.getAndIncrement();
+                    }
+                })
+            .delaySubscription(other)
+            .subscribe(ts);
+
+        ts.assertNotCompleted();
+        ts.assertNoErrors();
+        ts.assertNoValues();
+
+        Assert.assertEquals("Premature subscription", 0, subscribed.get());
+
+        other.onNext(1);
+
+        Assert.assertEquals("No subscription", 1, subscribed.get());
+
+        ts.assertNoValues();
+        ts.assertNotCompleted();
+        ts.assertError(TestException.class);
+    }
+
+    @Test
+    public void noSubscriptionIfOtherErrors() {
+        PublishSubject other = PublishSubject.create();
+
+        TestSubscriber ts = TestSubscriber.create();
+
+        final AtomicInteger subscribed = new AtomicInteger();
+
+        Single.error(new TestException())
+            .doOnSubscribe(new Action0() {
+                    @Override
+                    public void call() {
+                        subscribed.getAndIncrement();
+                    }
+                })
+            .delaySubscription(other)
+            .subscribe(ts);
+
+        ts.assertNotCompleted();
+        ts.assertNoErrors();
+        ts.assertNoValues();
+
+        Assert.assertEquals("Premature subscription", 0, subscribed.get());
+
+        other.onError(new TestException());
+
+        Assert.assertEquals("Premature subscription", 0, subscribed.get());
+
+        ts.assertNoValues();
+        ts.assertNotCompleted();
+        ts.assertError(TestException.class);
+    }
+}

From 47eb3061b7da7fab6e1c87b242fa604a6c0df0e7 Mon Sep 17 00:00:00 2001
From: akarnokd 
Date: Tue, 29 Mar 2016 17:33:24 +0200
Subject: [PATCH 003/294] 1.x: fix merge/flatMap crashing on an inner scalar of
 null

---
 .../rx/internal/operators/OperatorMerge.java  |  2 +-
 .../internal/operators/OperatorMergeTest.java | 21 +++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OperatorMerge.java b/src/main/java/rx/internal/operators/OperatorMerge.java
index a9c7b86b09..2aede6d9d7 100644
--- a/src/main/java/rx/internal/operators/OperatorMerge.java
+++ b/src/main/java/rx/internal/operators/OperatorMerge.java
@@ -475,7 +475,7 @@ protected void queueScalar(T value) {
                 }
                 this.queue = q;
             }
-            if (!q.offer(value)) {
+            if (!q.offer(nl.next(value))) {
                 unsubscribe();
                 onError(OnErrorThrowable.addValueAsLastCause(new MissingBackpressureException(), value));
                 return;
diff --git a/src/test/java/rx/internal/operators/OperatorMergeTest.java b/src/test/java/rx/internal/operators/OperatorMergeTest.java
index 2c40ac53d3..b93f32b580 100644
--- a/src/test/java/rx/internal/operators/OperatorMergeTest.java
+++ b/src/test/java/rx/internal/operators/OperatorMergeTest.java
@@ -28,10 +28,10 @@
 import org.mockito.*;
 
 import rx.*;
-import rx.Observable.OnSubscribe;
-import rx.Scheduler.Worker;
 import rx.Observable;
+import rx.Observable.OnSubscribe;
 import rx.Observer;
+import rx.Scheduler.Worker;
 import rx.functions.*;
 import rx.internal.util.RxRingBuffer;
 import rx.observers.TestSubscriber;
@@ -1353,4 +1353,21 @@ public void zeroMaxConcurrent() {
             assertEquals("maxConcurrent > 0 required but it was 0", e.getMessage());
         }
     }
+    
+    @Test
+    public void mergeJustNull() {
+        TestSubscriber ts = new TestSubscriber(0);
+        
+        Observable.range(1, 2).flatMap(new Func1>() {
+            @Override
+            public Observable call(Integer t) {
+                return Observable.just(null);
+            }
+        }).subscribe(ts);
+        
+        ts.requestMore(2);
+        ts.assertValues(null, null);
+        ts.assertNoErrors();
+        ts.assertCompleted();
+    }
 }

From f33873e79797895d27b20d64e8112f2fa38ee9f0 Mon Sep 17 00:00:00 2001
From: Aaron Tull 
Date: Thu, 31 Mar 2016 12:51:24 -0700
Subject: [PATCH 004/294] Upgrading SyncOnSubscribe from Experimental to Beta

---
 src/main/java/rx/Observable.java                  |  2 +-
 src/main/java/rx/observables/SyncOnSubscribe.java | 15 ++++++++-------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/src/main/java/rx/Observable.java b/src/main/java/rx/Observable.java
index 74fcf88fe9..b634c92215 100644
--- a/src/main/java/rx/Observable.java
+++ b/src/main/java/rx/Observable.java
@@ -126,7 +126,7 @@ public static  Observable create(OnSubscribe f) {
      * @see ReactiveX operators documentation: Create
      * @since (if this graduates from Experimental/Beta to supported, replace this parenthetical with the release number)
      */
-    @Experimental
+    @Beta
     public static  Observable create(SyncOnSubscribe syncOnSubscribe) {
         return new Observable(hook.onCreate(syncOnSubscribe));
     }
diff --git a/src/main/java/rx/observables/SyncOnSubscribe.java b/src/main/java/rx/observables/SyncOnSubscribe.java
index 910a5acddb..c2ff69e6e8 100644
--- a/src/main/java/rx/observables/SyncOnSubscribe.java
+++ b/src/main/java/rx/observables/SyncOnSubscribe.java
@@ -23,6 +23,7 @@
 import rx.Producer;
 import rx.Subscriber;
 import rx.Subscription;
+import rx.annotations.Beta;
 import rx.annotations.Experimental;
 import rx.exceptions.Exceptions;
 import rx.functions.Action0;
@@ -46,7 +47,7 @@
  * @param 
  *            the type of {@code Subscribers} that will be compatible with {@code this}.
  */
-@Experimental
+@Beta
 public abstract class SyncOnSubscribe implements OnSubscribe {
     
     /* (non-Javadoc)
@@ -126,7 +127,7 @@ protected void onUnsubscribe(S state) {
      *            next(S, Subscriber)})
      * @return a SyncOnSubscribe that emits data in a protocol compatible with back-pressure.
      */
-    @Experimental
+    @Beta
     public static  SyncOnSubscribe createSingleState(Func0 generator, 
             final Action2> next) {
         Func2, S> nextFunc = new Func2, S>() {
@@ -155,7 +156,7 @@ public S call(S state, Observer subscriber) {
      * @return a SyncOnSubscribe that emits data downstream in a protocol compatible with
      *         back-pressure.
      */
-    @Experimental
+    @Beta
     public static  SyncOnSubscribe createSingleState(Func0 generator, 
             final Action2> next, 
             final Action1 onUnsubscribe) {
@@ -183,7 +184,7 @@ public S call(S state, Observer subscriber) {
      * @return a SyncOnSubscribe that emits data downstream in a protocol compatible with
      *         back-pressure.
      */
-    @Experimental
+    @Beta
     public static  SyncOnSubscribe createStateful(Func0 generator, 
             Func2, ? extends S> next, 
             Action1 onUnsubscribe) {
@@ -202,7 +203,7 @@ public static  SyncOnSubscribe createStateful(Func0 gen
      * @return a SyncOnSubscribe that emits data downstream in a protocol compatible with
      *         back-pressure.
      */
-    @Experimental
+    @Beta
     public static  SyncOnSubscribe createStateful(Func0 generator, 
             Func2, ? extends S> next) {
         return new SyncOnSubscribeImpl(generator, next);
@@ -221,7 +222,7 @@ public static  SyncOnSubscribe createStateful(Func0 gen
      * @return a SyncOnSubscribe that emits data downstream in a protocol compatible with
      *         back-pressure.
      */
-    @Experimental
+    @Beta
     public static  SyncOnSubscribe createStateless(final Action1> next) {
         Func2, Void> nextFunc = new Func2, Void>() {
             @Override
@@ -248,7 +249,7 @@ public Void call(Void state, Observer subscriber) {
      * @return a SyncOnSubscribe that emits data downstream in a protocol compatible with
      *         back-pressure.
      */
-    @Experimental
+    @Beta
     public static  SyncOnSubscribe createStateless(final Action1> next, 
             final Action0 onUnsubscribe) {
         Func2, Void> nextFunc = new Func2, Void>() {

From d9ac3b8a577d4130cd9a47992ca8d7421700549c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C3=A1vid=20Karnok?= 
Date: Sun, 3 Apr 2016 03:56:26 +0200
Subject: [PATCH 005/294] 1.x: Fix
 ObserveOnTest.testQueueFullEmitsErrorWithVaryingBufferSize

---
 .../operators/OperatorObserveOnTest.java      | 74 +++++--------------
 1 file changed, 19 insertions(+), 55 deletions(-)

diff --git a/src/test/java/rx/internal/operators/OperatorObserveOnTest.java b/src/test/java/rx/internal/operators/OperatorObserveOnTest.java
index 8ebc69eed7..323f74b786 100644
--- a/src/test/java/rx/internal/operators/OperatorObserveOnTest.java
+++ b/src/test/java/rx/internal/operators/OperatorObserveOnTest.java
@@ -582,64 +582,28 @@ public void onNext(Integer t) {
 
     @Test
     public void testQueueFullEmitsErrorWithVaryingBufferSize() {
-        final CountDownLatch latch = new CountDownLatch(1);
-        // randomize buffer size, note that underlying implementations may be tuning the real size to a power of 2
-        // which can lead to unexpected results when adding excess capacity (e.g.: see ConcurrentCircularArrayQueue)
         for (int i = 1; i <= 1024; i = i * 2) {
             final int capacity = i;
-            Observable observable = Observable.create(new OnSubscribe() {
-
-                @Override
-                public void call(Subscriber o) {
-                    for (int i = 0; i < capacity + 10; i++) {
-                        o.onNext(i);
-                    }
-                    latch.countDown();
-                    o.onCompleted();
-                }
-
-            });
-
-            TestSubscriber testSubscriber = new TestSubscriber(new Observer() {
-
-                @Override
-                public void onCompleted() {
-
-                }
-
-                @Override
-                public void onError(Throwable e) {
-
-                }
-
-                @Override
-                public void onNext(Integer t) {
-                    try {
-                        // force it to be slow wait until we have queued everything
-                        latch.await(500, TimeUnit.MILLISECONDS);
-                    } catch (InterruptedException e) {
-                        e.printStackTrace();
-                    }
-                }
-
-            });
-            System.out.println("Using capacity " + capacity); // for post-failure debugging
-            observable.observeOn(Schedulers.newThread(), capacity).subscribe(testSubscriber);
-
-            testSubscriber.awaitTerminalEvent();
-            List errors = testSubscriber.getOnErrorEvents();
-            assertEquals(1, errors.size());
-            System.out.println("Errors: " + errors);
-            Throwable t = errors.get(0);
-            if (t instanceof MissingBackpressureException) {
-                // success, we expect this
-            } else {
-                if (t.getCause() instanceof MissingBackpressureException) {
-                    // this is also okay
-                } else {
-                    fail("Expecting MissingBackpressureException");
-                }
+            System.out.println(">> testQueueFullEmitsErrorWithVaryingBufferSize @ " + i);
+            
+            PublishSubject ps = PublishSubject.create();
+            
+            TestSubscriber ts = new TestSubscriber(0);
+            
+            TestScheduler test = Schedulers.test();
+            
+            ps.observeOn(test, capacity).subscribe(ts);
+            
+            for (int j = 0; j < capacity + 10; j++) {
+                ps.onNext(j);
             }
+            ps.onCompleted();
+            
+            test.advanceTimeBy(1, TimeUnit.SECONDS);
+            
+            ts.assertNoValues();
+            ts.assertError(MissingBackpressureException.class);
+            ts.assertNotCompleted();
         }
     }
 

From e971c4aa2ec3ae2c16e771b712f66cc23c95fdda Mon Sep 17 00:00:00 2001
From: Prat 
Date: Mon, 4 Apr 2016 03:01:33 -0400
Subject: [PATCH 006/294] 1.x: Fix TestSubscriber.create doc

---
 src/main/java/rx/observers/TestSubscriber.java | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/main/java/rx/observers/TestSubscriber.java b/src/main/java/rx/observers/TestSubscriber.java
index 17655ab91f..887bd2998b 100644
--- a/src/main/java/rx/observers/TestSubscriber.java
+++ b/src/main/java/rx/observers/TestSubscriber.java
@@ -145,12 +145,12 @@ public static  TestSubscriber create(long initialRequest) {
     public static  TestSubscriber create(Observer delegate, long initialRequest) {
         return new TestSubscriber(delegate, initialRequest);
     }
-    
+
     /**
-     * Factory method to construct a TestSubscriber which delegates events to the given Observer and
+     * Factory method to construct a TestSubscriber which delegates events to the given Subscriber and
      * an issues an initial request of Long.MAX_VALUE.
      * @param  the value type
-     * @param delegate the observer to delegate events to
+     * @param delegate the subscriber to delegate events to
      * @return the created TestSubscriber instance
      * @throws NullPointerException if delegate is null
      * @since 1.1.0
@@ -160,10 +160,10 @@ public static  TestSubscriber create(Subscriber delegate) {
     }
     
     /**
-     * Factory method to construct a TestSubscriber which delegates events to the given Subscriber and
+     * Factory method to construct a TestSubscriber which delegates events to the given Observer and
      * an issues an initial request of Long.MAX_VALUE.
      * @param  the value type
-     * @param delegate the subscriber to delegate events to
+     * @param delegate the observer to delegate events to
      * @return the created TestSubscriber instance
      * @throws NullPointerException if delegate is null
      * @since 1.1.0

From 3e2dd9e60b4fa271a80156a9953e3c9ff3853798 Mon Sep 17 00:00:00 2001
From: Artem Zinnatullin 
Date: Mon, 4 Apr 2016 17:43:04 +0300
Subject: [PATCH 007/294] 1.x: Add system property for disabling usage of
 Unsafe API

---
 src/main/java/rx/internal/util/unsafe/UnsafeAccess.java | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main/java/rx/internal/util/unsafe/UnsafeAccess.java b/src/main/java/rx/internal/util/unsafe/UnsafeAccess.java
index a13989f4f1..076112982f 100644
--- a/src/main/java/rx/internal/util/unsafe/UnsafeAccess.java
+++ b/src/main/java/rx/internal/util/unsafe/UnsafeAccess.java
@@ -22,6 +22,9 @@
 /**
  * All use of this class MUST first check that UnsafeAccess.isUnsafeAvailable() == true
  * otherwise NPEs will happen in environments without "suc.misc.Unsafe" such as Android.
+ * 

+ * Note that you can force RxJava to not use Unsafe API by setting any value to System Property
+ * {@code rx.unsafe-disable}.
  */
 public final class UnsafeAccess {
     private UnsafeAccess() {
@@ -29,6 +32,9 @@ private UnsafeAccess() {
     }
 
     public static final Unsafe UNSAFE;
+
+    private static final boolean DISABLED_BY_USER = System.getProperty("rx.unsafe-disable") != null;
+
     static {
         Unsafe u = null;
         try {
@@ -48,7 +54,7 @@ private UnsafeAccess() {
     }
 
     public static boolean isUnsafeAvailable() {
-        return UNSAFE != null;
+        return UNSAFE != null && !DISABLED_BY_USER;
     }
 
     /*

From e26096d27c218242a8331aef93ace7a0ce989093 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Mon, 4 Apr 2016 19:50:32 +0200
Subject: [PATCH 008/294] 1.x: AsyncSubject now supports backpressure

---
 src/main/java/rx/subjects/AsyncSubject.java   | 12 ++++--
 .../subjects/SubjectSubscriptionManager.java  |  4 +-
 .../java/rx/subjects/AsyncSubjectTest.java    | 43 +++++++++++++++++++
 3 files changed, 53 insertions(+), 6 deletions(-)

diff --git a/src/main/java/rx/subjects/AsyncSubject.java b/src/main/java/rx/subjects/AsyncSubject.java
index 57539fa8eb..dac007f03f 100644
--- a/src/main/java/rx/subjects/AsyncSubject.java
+++ b/src/main/java/rx/subjects/AsyncSubject.java
@@ -22,6 +22,7 @@
 import rx.exceptions.Exceptions;
 import rx.functions.Action1;
 import rx.internal.operators.NotificationLite;
+import rx.internal.producers.SingleProducer;
 import rx.subjects.SubjectSubscriptionManager.SubjectObserver;
 
 /**
@@ -68,9 +69,13 @@ public static  AsyncSubject create() {
             public void call(SubjectObserver o) {
                 Object v = state.getLatest();
                 NotificationLite nl = state.nl;
-                o.accept(v, nl);
-                if (v == null || (!nl.isCompleted(v) && !nl.isError(v))) {
+                if (v == null || nl.isCompleted(v)) {
                     o.onCompleted();
+                } else
+                if (nl.isError(v)) {
+                    o.onError(nl.getError(v));
+                } else {
+                    o.actual.setProducer(new SingleProducer(o.actual, nl.getValue(v)));
                 }
             }
         };
@@ -97,8 +102,7 @@ public void onCompleted() {
                 if (last == nl.completed()) {
                     bo.onCompleted();
                 } else {
-                    bo.onNext(nl.getValue(last));
-                    bo.onCompleted();
+                    bo.actual.setProducer(new SingleProducer(bo.actual, nl.getValue(last)));
                 }
             }
         }
diff --git a/src/main/java/rx/subjects/SubjectSubscriptionManager.java b/src/main/java/rx/subjects/SubjectSubscriptionManager.java
index 9a0c90ece7..8ac2d59e98 100644
--- a/src/main/java/rx/subjects/SubjectSubscriptionManager.java
+++ b/src/main/java/rx/subjects/SubjectSubscriptionManager.java
@@ -203,7 +203,7 @@ public State remove(SubjectObserver o) {
      */
     protected static final class SubjectObserver implements Observer {
         /** The actual Observer. */
-        final Observer actual;
+        final Subscriber actual;
         /** Was the emitFirst run? Guarded by this. */
         boolean first = true;
         /** Guarded by this. */
@@ -215,7 +215,7 @@ protected static final class SubjectObserver implements Observer {
         protected volatile boolean caughtUp;
         /** Indicate where the observer is at replaying. */
         private volatile Object index;
-        public SubjectObserver(Observer actual) {
+        public SubjectObserver(Subscriber actual) {
             this.actual = actual;
         }
         @Override
diff --git a/src/test/java/rx/subjects/AsyncSubjectTest.java b/src/test/java/rx/subjects/AsyncSubjectTest.java
index 968e71f571..82f6843f90 100644
--- a/src/test/java/rx/subjects/AsyncSubjectTest.java
+++ b/src/test/java/rx/subjects/AsyncSubjectTest.java
@@ -430,4 +430,47 @@ public void testAsyncSubjectValueError() {
         assertNull(async.getValue());
         assertFalse(async.hasValue());
     }
+    
+    @Test
+    public void backpressureOnline() {
+        TestSubscriber ts = TestSubscriber.create(0);
+        
+        AsyncSubject subject = AsyncSubject.create();
+        
+        subject.subscribe(ts);
+        
+        subject.onNext(1);
+        subject.onCompleted();
+        
+        ts.assertNoValues();
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+        ts.requestMore(1);
+        
+        ts.assertValue(1);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
+    
+    @Test
+    public void backpressureOffline() {
+        TestSubscriber ts = TestSubscriber.create(0);
+        
+        AsyncSubject subject = AsyncSubject.create();
+        subject.onNext(1);
+        subject.onCompleted();
+        
+        subject.subscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+        ts.requestMore(1);
+        
+        ts.assertValue(1);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
 }

From 4dad04a9f5d8404f28345dc9abd2b971e93e6100 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Mon, 4 Apr 2016 20:11:37 +0200
Subject: [PATCH 009/294] 1.x: DoAfterTerminate handle if action throws

---
 .../operators/OperatorDoAfterTerminate.java   | 13 ++++-
 .../OperatorDoAfterTerminateTest.java         | 47 +++++++++++++++----
 2 files changed, 50 insertions(+), 10 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OperatorDoAfterTerminate.java b/src/main/java/rx/internal/operators/OperatorDoAfterTerminate.java
index a56d28795c..64afca478a 100644
--- a/src/main/java/rx/internal/operators/OperatorDoAfterTerminate.java
+++ b/src/main/java/rx/internal/operators/OperatorDoAfterTerminate.java
@@ -17,7 +17,9 @@
 
 import rx.Observable.Operator;
 import rx.Subscriber;
+import rx.exceptions.Exceptions;
 import rx.functions.Action0;
+import rx.plugins.RxJavaPlugins;
 
 /**
  * Registers an action to be called after an Observable invokes {@code onComplete} or {@code onError}.
@@ -53,7 +55,7 @@ public void onError(Throwable e) {
                 try {
                     child.onError(e);
                 } finally {
-                    action.call();
+                    callAction();
                 }
             }
 
@@ -62,7 +64,16 @@ public void onCompleted() {
                 try {
                     child.onCompleted();
                 } finally {
+                    callAction();
+                }
+            }
+            
+            void callAction() {
+                try {
                     action.call();
+                } catch (Throwable ex) {
+                    Exceptions.throwIfFatal(ex);
+                    RxJavaPlugins.getInstance().getErrorHandler().handleError(ex);
                 }
             }
         };
diff --git a/src/test/java/rx/internal/operators/OperatorDoAfterTerminateTest.java b/src/test/java/rx/internal/operators/OperatorDoAfterTerminateTest.java
index 6295386ae1..397451161d 100644
--- a/src/test/java/rx/internal/operators/OperatorDoAfterTerminateTest.java
+++ b/src/test/java/rx/internal/operators/OperatorDoAfterTerminateTest.java
@@ -15,18 +15,14 @@
  */
 package rx.internal.operators;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.*;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.*;
 
-import rx.Observable;
-import rx.Observer;
+import rx.*;
 import rx.functions.Action0;
+import rx.observers.TestSubscriber;
 
 public class OperatorDoAfterTerminateTest {
 
@@ -65,4 +61,37 @@ public void nullActionShouldBeCheckedInConstructor() {
             assertEquals("Action can not be null", expected.getMessage());
         }
     }
+    
+    @Test
+    public void nullFinallyActionShouldBeCheckedASAP() {
+        try {
+            Observable
+                    .just("value")
+                    .doAfterTerminate(null);
+
+            fail();
+        } catch (NullPointerException expected) {
+
+        }
+    }
+
+    @Test
+    public void ifFinallyActionThrowsExceptionShouldNotBeSwallowedAndActionShouldBeCalledOnce() {
+        Action0 finallyAction = mock(Action0.class);
+        doThrow(new IllegalStateException()).when(finallyAction).call();
+
+        TestSubscriber testSubscriber = new TestSubscriber();
+
+        Observable
+                .just("value")
+                .doAfterTerminate(finallyAction)
+                .subscribe(testSubscriber);
+
+        testSubscriber.assertValue("value");
+
+        verify(finallyAction).call();
+        // Actual result:
+        // Not only IllegalStateException was swallowed
+        // But finallyAction was called twice!
+    }
 }

From 3c86972d6630653a81c9764c84856ed6786513bf Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Mon, 4 Apr 2016 20:13:48 +0200
Subject: [PATCH 010/294] 1.x: javac 9 compatibility fixes

---
 src/main/java/rx/Observable.java              | 35 ++++++++++---------
 src/main/java/rx/Single.java                  | 29 +++++++--------
 .../operators/BlockingOperatorLatest.java     |  2 +-
 .../operators/BlockingOperatorMostRecent.java |  2 +-
 .../operators/BlockingOperatorNext.java       |  2 +-
 .../operators/BlockingOperatorToFuture.java   |  2 +-
 .../operators/BlockingOperatorToIterator.java |  2 +-
 .../internal/operators/CachedObservable.java  |  2 +-
 .../CompletableOnSubscribeConcat.java         |  4 +--
 .../CompletableOnSubscribeMerge.java          |  4 +--
 .../operators/OnSubscribeCombineLatest.java   |  2 +-
 .../internal/operators/OperatorMapPair.java   |  2 +-
 .../internal/operators/OperatorMulticast.java |  2 +-
 .../rx/internal/operators/OperatorReplay.java |  4 +--
 ...ngleOnSubscribeDelaySubscriptionOther.java |  2 +-
 .../java/rx/observables/AsyncOnSubscribe.java |  7 ++--
 .../rx/observables/BlockingObservable.java    | 18 +++++-----
 src/main/java/rx/singles/BlockingSingle.java  |  2 +-
 18 files changed, 63 insertions(+), 60 deletions(-)

diff --git a/src/main/java/rx/Observable.java b/src/main/java/rx/Observable.java
index b634c92215..439da019ed 100644
--- a/src/main/java/rx/Observable.java
+++ b/src/main/java/rx/Observable.java
@@ -609,7 +609,7 @@ public static  Observable amb(Observable o1, Observable Observable combineLatest(Observable o1, Observable o2, Func2 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -637,7 +637,7 @@ public static  Observable combineLatest(Observable o
      */
     @SuppressWarnings("unchecked")
     public static  Observable combineLatest(Observable o1, Observable o2, Observable o3, Func3 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -668,7 +668,7 @@ public static  Observable combineLatest(Observable Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4,
             Func4 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3, o4), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3, o4), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -701,7 +701,7 @@ public static  Observable combineLatest(Observable Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5,
             Func5 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3, o4, o5), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3, o4, o5), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -736,7 +736,7 @@ public static  Observable combineLatest(Observable Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6,
             Func6 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -773,7 +773,7 @@ public static  Observable combineLatest(Observable
     @SuppressWarnings("unchecked")
     public static  Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7,
             Func7 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -812,7 +812,7 @@ public static  Observable combineLatest(Observ
     @SuppressWarnings("unchecked")
     public static  Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7, Observable o8,
             Func8 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7, o8), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7, o8), Functions.fromFunc(combineFunction));
     }
 
     /**
@@ -854,7 +854,7 @@ public static  Observable combineLatest(Ob
     public static  Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7, Observable o8,
             Observable o9,
             Func9 combineFunction) {
-        return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7, o8, o9), Functions.fromFunc(combineFunction));
+        return (Observable)combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7, o8, o9), Functions.fromFunc(combineFunction));
     }
     /**
      * Combines a list of source Observables by emitting an item that aggregates the latest values of each of
@@ -1330,7 +1330,7 @@ public static  Observable error(Throwable exception) {
      * @see ReactiveX operators documentation: From
      */
     public static  Observable from(Future future) {
-        return create(OnSubscribeToObservableFuture.toObservableFuture(future));
+        return (Observable)create(OnSubscribeToObservableFuture.toObservableFuture(future));
     }
 
     /**
@@ -1361,7 +1361,7 @@ public static  Observable from(Future future) {
      * @see ReactiveX operators documentation: From
      */
     public static  Observable from(Future future, long timeout, TimeUnit unit) {
-        return create(OnSubscribeToObservableFuture.toObservableFuture(future, timeout, unit));
+        return (Observable)create(OnSubscribeToObservableFuture.toObservableFuture(future, timeout, unit));
     }
 
     /**
@@ -1390,7 +1390,8 @@ public static  Observable from(Future future, long timeout, T
      */
     public static  Observable from(Future future, Scheduler scheduler) {
         // TODO in a future revision the Scheduler will become important because we'll start polling instead of blocking on the Future
-        return create(OnSubscribeToObservableFuture.toObservableFuture(future)).subscribeOn(scheduler);
+        Observable o = (Observable)create(OnSubscribeToObservableFuture.toObservableFuture(future));
+        return o.subscribeOn(scheduler);
     }
 
     /**
@@ -5834,7 +5835,7 @@ public final  Observable flatMapIterable(Func1 Observable flatMapIterable(Func1> collectionSelector,
             Func2 resultSelector) {
-        return flatMap(OperatorMapPair.convertSelector(collectionSelector), resultSelector);
+        return (Observable)flatMap(OperatorMapPair.convertSelector(collectionSelector), resultSelector);
     }
 
     /**
@@ -5870,7 +5871,7 @@ public final  Observable flatMapIterable(Func1 Observable flatMapIterable(Func1> collectionSelector,
             Func2 resultSelector, int maxConcurrent) {
-        return flatMap(OperatorMapPair.convertSelector(collectionSelector), resultSelector, maxConcurrent);
+        return (Observable)flatMap(OperatorMapPair.convertSelector(collectionSelector), resultSelector, maxConcurrent);
     }
 
     /**
@@ -6655,7 +6656,7 @@ public final Observable onErrorResumeNext(final Func1ReactiveX operators documentation: Catch
      */
     public final Observable onErrorResumeNext(final Observable resumeSequence) {
-        return lift(OperatorOnErrorResumeNextViaFunction.withOther(resumeSequence));
+        return lift((Operator)OperatorOnErrorResumeNextViaFunction.withOther(resumeSequence));
     }
 
     /**
@@ -6685,7 +6686,7 @@ public final Observable onErrorResumeNext(final Observable resum
      * @see ReactiveX operators documentation: Catch
      */
     public final Observable onErrorReturn(Func1 resumeFunction) {
-        return lift(OperatorOnErrorResumeNextViaFunction.withSingle(resumeFunction));
+        return lift((Operator)OperatorOnErrorResumeNextViaFunction.withSingle(resumeFunction));
     }
 
     /**
@@ -6721,7 +6722,7 @@ public final Observable onErrorReturn(Func1 resumeFun
      * @see ReactiveX operators documentation: Catch
      */
     public final Observable onExceptionResumeNext(final Observable resumeSequence) {
-        return lift(OperatorOnErrorResumeNextViaFunction.withException(resumeSequence));
+        return lift((Operator)OperatorOnErrorResumeNextViaFunction.withException(resumeSequence));
     }
 
     /**
@@ -10564,7 +10565,7 @@ public final  Observable zipWith(Iterable other, Func2ReactiveX operators documentation: Zip
      */
     public final  Observable zipWith(Observable other, Func2 zipFunction) {
-        return zip(this, other, zipFunction);
+        return (Observable)zip(this, other, zipFunction);
     }
 
     /**
diff --git a/src/main/java/rx/Single.java b/src/main/java/rx/Single.java
index 57dadd12d8..c1565313ab 100644
--- a/src/main/java/rx/Single.java
+++ b/src/main/java/rx/Single.java
@@ -524,7 +524,7 @@ public void call(SingleSubscriber te) {
      * @see ReactiveX operators documentation: From
      */
     public static  Single from(Future future) {
-        return new Single(OnSubscribeToObservableFuture.toObservableFuture(future));
+        return new Single((Observable.OnSubscribe)OnSubscribeToObservableFuture.toObservableFuture(future));
     }
 
     /**
@@ -555,7 +555,7 @@ public static  Single from(Future future) {
      * @see ReactiveX operators documentation: From
      */
     public static  Single from(Future future, long timeout, TimeUnit unit) {
-        return new Single(OnSubscribeToObservableFuture.toObservableFuture(future, timeout, unit));
+        return new Single((Observable.OnSubscribe)OnSubscribeToObservableFuture.toObservableFuture(future, timeout, unit));
     }
 
     /**
@@ -583,7 +583,7 @@ public static  Single from(Future future, long timeout, TimeU
      * @see ReactiveX operators documentation: From
      */
     public static  Single from(Future future, Scheduler scheduler) {
-        return new Single(OnSubscribeToObservableFuture.toObservableFuture(future)).subscribeOn(scheduler);
+        return new Single((Observable.OnSubscribe)OnSubscribeToObservableFuture.toObservableFuture(future)).subscribeOn(scheduler);
     }
 
     /**
@@ -949,7 +949,7 @@ public static  Observable merge(Single t1, SingleReactiveX operators documentation: Zip
      */
     public static  Single zip(Single s1, Single s2, final Func2 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1]);
@@ -980,7 +980,7 @@ public R call(Object... args) {
      * @see ReactiveX operators documentation: Zip
      */
     public static  Single zip(Single s1, Single s2, Single s3, final Func3 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2]);
@@ -1013,7 +1013,7 @@ public R call(Object... args) {
      * @see ReactiveX operators documentation: Zip
      */
     public static  Single zip(Single s1, Single s2, Single s3, Single s4, final Func4 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2], (T4) args[3]);
@@ -1048,7 +1048,7 @@ public R call(Object... args) {
      * @see ReactiveX operators documentation: Zip
      */
     public static  Single zip(Single s1, Single s2, Single s3, Single s4, Single s5, final Func5 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2], (T4) args[3], (T5) args[4]);
@@ -1086,7 +1086,7 @@ public R call(Object... args) {
      */
     public static  Single zip(Single s1, Single s2, Single s3, Single s4, Single s5, Single s6,
                                                             final Func6 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2], (T4) args[3], (T5) args[4], (T6) args[5]);
@@ -1126,7 +1126,7 @@ public R call(Object... args) {
      */
     public static  Single zip(Single s1, Single s2, Single s3, Single s4, Single s5, Single s6, Single s7,
                                                                 final Func7 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6, s7}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6, s7}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2], (T4) args[3], (T5) args[4], (T6) args[5], (T7) args[6]);
@@ -1168,7 +1168,7 @@ public R call(Object... args) {
      */
     public static  Single zip(Single s1, Single s2, Single s3, Single s4, Single s5, Single s6, Single s7, Single s8,
                                                                     final Func8 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6, s7, s8}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6, s7, s8}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2], (T4) args[3], (T5) args[4], (T6) args[5], (T7) args[6], (T8) args[7]);
@@ -1212,7 +1212,7 @@ public R call(Object... args) {
      */
     public static  Single zip(Single s1, Single s2, Single s3, Single s4, Single s5, Single s6, Single s7, Single s8,
                                                                         Single s9, final Func9 zipFunction) {
-        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6, s7, s8, s9}, new FuncN() {
+        return SingleOperatorZip.zip(new Single[] {s1, s2, s3, s4, s5, s6, s7, s8, s9}, new FuncN() {
             @Override
             public R call(Object... args) {
                 return zipFunction.call((T1) args[0], (T2) args[1], (T3) args[2], (T4) args[3], (T5) args[4], (T6) args[5], (T7) args[6], (T8) args[7], (T9) args[8]);
@@ -1242,7 +1242,8 @@ public R call(Object... args) {
      * @see ReactiveX operators documentation: Zip
      */
     public static  Single zip(Iterable> singles, FuncN zipFunction) {
-        return SingleOperatorZip.zip(iterableToArray(singles), zipFunction);
+        Single[] iterableToArray = iterableToArray(singles);
+        return SingleOperatorZip.zip(iterableToArray, zipFunction);
     }
 
     /**
@@ -1401,7 +1402,7 @@ public final Single observeOn(Scheduler scheduler) {
      * @see ReactiveX operators documentation: Catch
      */
     public final Single onErrorReturn(Func1 resumeFunction) {
-        return lift(OperatorOnErrorResumeNextViaFunction.withSingle(resumeFunction));
+        return lift((Operator)OperatorOnErrorResumeNextViaFunction.withSingle(resumeFunction));
     }
 
     /**
@@ -2234,7 +2235,7 @@ public final BlockingSingle toBlocking() {
      * @see ReactiveX operators documentation: Zip
      */
     public final  Single zipWith(Single other, Func2 zipFunction) {
-        return zip(this, other, zipFunction);
+        return (Single)zip(this, other, zipFunction);
     }
 
     /**
diff --git a/src/main/java/rx/internal/operators/BlockingOperatorLatest.java b/src/main/java/rx/internal/operators/BlockingOperatorLatest.java
index 5b2b798995..b53ab211a7 100644
--- a/src/main/java/rx/internal/operators/BlockingOperatorLatest.java
+++ b/src/main/java/rx/internal/operators/BlockingOperatorLatest.java
@@ -49,7 +49,7 @@ public static  Iterable latest(final Observable source) {
             @Override
             public Iterator iterator() {
                 LatestObserverIterator lio = new LatestObserverIterator();
-                source.materialize().subscribe(lio);
+                ((Observable)source).materialize().subscribe(lio);
                 return lio;
             }
         };
diff --git a/src/main/java/rx/internal/operators/BlockingOperatorMostRecent.java b/src/main/java/rx/internal/operators/BlockingOperatorMostRecent.java
index 9b6cf64bf2..4cd424be29 100644
--- a/src/main/java/rx/internal/operators/BlockingOperatorMostRecent.java
+++ b/src/main/java/rx/internal/operators/BlockingOperatorMostRecent.java
@@ -53,7 +53,7 @@ public Iterator iterator() {
                  * Subscribe instead of unsafeSubscribe since this is the final subscribe in the chain
                  * since it is for BlockingObservable.
                  */
-                source.subscribe(mostRecentObserver);
+                ((Observable)source).subscribe(mostRecentObserver);
 
                 return mostRecentObserver.getIterable();
             }
diff --git a/src/main/java/rx/internal/operators/BlockingOperatorNext.java b/src/main/java/rx/internal/operators/BlockingOperatorNext.java
index 7a55a663eb..fc6a41487b 100644
--- a/src/main/java/rx/internal/operators/BlockingOperatorNext.java
+++ b/src/main/java/rx/internal/operators/BlockingOperatorNext.java
@@ -96,7 +96,7 @@ private boolean moveToNext() {
                     started = true;
                     // if not started, start now
                     observer.setWaiting(1);
-                    items.materialize().subscribe(observer);
+                    ((Observable)items).materialize().subscribe(observer);
                 }
                 
                 Notification nextNotification = observer.takeNext();
diff --git a/src/main/java/rx/internal/operators/BlockingOperatorToFuture.java b/src/main/java/rx/internal/operators/BlockingOperatorToFuture.java
index 29021405ca..daeee2e770 100644
--- a/src/main/java/rx/internal/operators/BlockingOperatorToFuture.java
+++ b/src/main/java/rx/internal/operators/BlockingOperatorToFuture.java
@@ -54,7 +54,7 @@ public static  Future toFuture(Observable that) {
         final AtomicReference value = new AtomicReference();
         final AtomicReference error = new AtomicReference();
 
-        final Subscription s = that.single().subscribe(new Subscriber() {
+        final Subscription s = ((Observable)that).single().subscribe(new Subscriber() {
 
             @Override
             public void onCompleted() {
diff --git a/src/main/java/rx/internal/operators/BlockingOperatorToIterator.java b/src/main/java/rx/internal/operators/BlockingOperatorToIterator.java
index 899aaffacb..6f0f9b2616 100644
--- a/src/main/java/rx/internal/operators/BlockingOperatorToIterator.java
+++ b/src/main/java/rx/internal/operators/BlockingOperatorToIterator.java
@@ -50,7 +50,7 @@ public static  Iterator toIterator(Observable source) {
         SubscriberIterator subscriber = new SubscriberIterator();
 
         // using subscribe instead of unsafeSubscribe since this is a BlockingObservable "final subscribe"
-        source.materialize().subscribe(subscriber);
+        ((Observable)source).materialize().subscribe(subscriber);
         return subscriber;
     }
 
diff --git a/src/main/java/rx/internal/operators/CachedObservable.java b/src/main/java/rx/internal/operators/CachedObservable.java
index 1995174eff..6d9e7b6da6 100644
--- a/src/main/java/rx/internal/operators/CachedObservable.java
+++ b/src/main/java/rx/internal/operators/CachedObservable.java
@@ -39,7 +39,7 @@ public final class CachedObservable extends Observable {
      * @return the CachedObservable instance
      */
     public static  CachedObservable from(Observable source) {
-        return from(source, 16);
+        return (CachedObservable)from(source, 16);
     }
     
     /**
diff --git a/src/main/java/rx/internal/operators/CompletableOnSubscribeConcat.java b/src/main/java/rx/internal/operators/CompletableOnSubscribeConcat.java
index c7da20df07..8257c158a7 100644
--- a/src/main/java/rx/internal/operators/CompletableOnSubscribeConcat.java
+++ b/src/main/java/rx/internal/operators/CompletableOnSubscribeConcat.java
@@ -26,11 +26,11 @@
 import rx.subscriptions.SerialSubscription;
 
 public final class CompletableOnSubscribeConcat implements CompletableOnSubscribe {
-    final Observable sources;
+    final Observable sources;
     final int prefetch;
     
     public CompletableOnSubscribeConcat(Observable sources, int prefetch) {
-        this.sources = sources;
+        this.sources = (Observable)sources;
         this.prefetch = prefetch;
     }
     
diff --git a/src/main/java/rx/internal/operators/CompletableOnSubscribeMerge.java b/src/main/java/rx/internal/operators/CompletableOnSubscribeMerge.java
index a1c3cf64e9..7c3fff300c 100644
--- a/src/main/java/rx/internal/operators/CompletableOnSubscribeMerge.java
+++ b/src/main/java/rx/internal/operators/CompletableOnSubscribeMerge.java
@@ -28,12 +28,12 @@
 import rx.subscriptions.CompositeSubscription;
 
 public final class CompletableOnSubscribeMerge implements CompletableOnSubscribe {
-    final Observable source;
+    final Observable source;
     final int maxConcurrency;
     final boolean delayErrors;
     
     public CompletableOnSubscribeMerge(Observable source, int maxConcurrency, boolean delayErrors) {
-        this.source = source;
+        this.source = (Observable)source;
         this.maxConcurrency = maxConcurrency;
         this.delayErrors = delayErrors;
     }
diff --git a/src/main/java/rx/internal/operators/OnSubscribeCombineLatest.java b/src/main/java/rx/internal/operators/OnSubscribeCombineLatest.java
index 93dcb5de5d..f254331913 100644
--- a/src/main/java/rx/internal/operators/OnSubscribeCombineLatest.java
+++ b/src/main/java/rx/internal/operators/OnSubscribeCombineLatest.java
@@ -140,7 +140,7 @@ public void subscribe(Observable[] sources) {
                 if (cancelled) {
                     return;
                 }
-                sources[i].subscribe(as[i]);
+                ((Observable)sources[i]).subscribe(as[i]);
             }
         }
         
diff --git a/src/main/java/rx/internal/operators/OperatorMapPair.java b/src/main/java/rx/internal/operators/OperatorMapPair.java
index 29848d2f78..b16a9b3c41 100644
--- a/src/main/java/rx/internal/operators/OperatorMapPair.java
+++ b/src/main/java/rx/internal/operators/OperatorMapPair.java
@@ -47,7 +47,7 @@ public static  Func1> convertSelector(final Func1>() {
             @Override
             public Observable call(T t1) {
-                return Observable.from(selector.call(t1));
+                return (Observable)Observable.from(selector.call(t1));
             }
         };
     }
diff --git a/src/main/java/rx/internal/operators/OperatorMulticast.java b/src/main/java/rx/internal/operators/OperatorMulticast.java
index fcdededbed..6b760161da 100644
--- a/src/main/java/rx/internal/operators/OperatorMulticast.java
+++ b/src/main/java/rx/internal/operators/OperatorMulticast.java
@@ -149,6 +149,6 @@ public void onCompleted() {
             sub = subscription;
         }
         if (sub != null)
-            source.subscribe(sub);
+            ((Observable)source).subscribe(sub);
     }
 }
\ No newline at end of file
diff --git a/src/main/java/rx/internal/operators/OperatorReplay.java b/src/main/java/rx/internal/operators/OperatorReplay.java
index f4af56bcb9..4ca4bda3e9 100644
--- a/src/main/java/rx/internal/operators/OperatorReplay.java
+++ b/src/main/java/rx/internal/operators/OperatorReplay.java
@@ -135,7 +135,7 @@ public static  ConnectableObservable create(Observable source
     public static  ConnectableObservable create(Observable source, 
             final int bufferSize) {
         if (bufferSize == Integer.MAX_VALUE) {
-            return create(source);
+            return (ConnectableObservable)create(source);
         }
         return create(source, new Func0>() {
             @Override
@@ -155,7 +155,7 @@ public ReplayBuffer call() {
      */
     public static  ConnectableObservable create(Observable source, 
             long maxAge, TimeUnit unit, Scheduler scheduler) {
-        return create(source, maxAge, unit, scheduler, Integer.MAX_VALUE);
+        return (ConnectableObservable)create(source, maxAge, unit, scheduler, Integer.MAX_VALUE);
     }
 
     /**
diff --git a/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java b/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java
index efd9cf517b..a2d47dfee7 100644
--- a/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java
+++ b/src/main/java/rx/internal/operators/SingleOnSubscribeDelaySubscriptionOther.java
@@ -86,6 +86,6 @@ public void onCompleted() {
 
         serial.set(otherSubscriber);
 
-        other.subscribe(otherSubscriber);
+        ((Observable)other).subscribe(otherSubscriber);
     }
 }
diff --git a/src/main/java/rx/observables/AsyncOnSubscribe.java b/src/main/java/rx/observables/AsyncOnSubscribe.java
index 24de19c149..c0e5a166b8 100644
--- a/src/main/java/rx/observables/AsyncOnSubscribe.java
+++ b/src/main/java/rx/observables/AsyncOnSubscribe.java
@@ -608,12 +608,13 @@ public void onCompleted() {
             };
             subscriptions.add(s);
 
-            t.doOnTerminate(new Action0() {
+            Observable doOnTerminate = t.doOnTerminate(new Action0() {
                     @Override
                     public void call() {
                         subscriptions.remove(s);
-                    }})
-                .subscribe(s);
+                    }});
+            
+            ((Observable)doOnTerminate).subscribe(s);
 
             merger.onNext(buffer);
         }
diff --git a/src/main/java/rx/observables/BlockingObservable.java b/src/main/java/rx/observables/BlockingObservable.java
index a44bf85558..33bde77d6a 100644
--- a/src/main/java/rx/observables/BlockingObservable.java
+++ b/src/main/java/rx/observables/BlockingObservable.java
@@ -99,7 +99,7 @@ public void forEach(final Action1 onNext) {
          * Use 'subscribe' instead of 'unsafeSubscribe' for Rx contract behavior
          * (see http://reactivex.io/documentation/contract.html) as this is the final subscribe in the chain.
          */
-        Subscription subscription = o.subscribe(new Subscriber() {
+        Subscription subscription = ((Observable)o).subscribe(new Subscriber() {
             @Override
             public void onCompleted() {
                 latch.countDown();
@@ -144,7 +144,7 @@ public void onNext(T args) {
      * @see ReactiveX documentation: To
      */
     public Iterator getIterator() {
-        return BlockingOperatorToIterator.toIterator(o);
+        return BlockingOperatorToIterator.toIterator((Observable)o);
     }
 
     /**
@@ -299,7 +299,7 @@ public Iterable mostRecent(T initialValue) {
      * @see ReactiveX documentation: TakeLast
      */
     public Iterable next() {
-        return BlockingOperatorNext.next(o);
+        return BlockingOperatorNext.next((Observable)o);
     }
 
     /**
@@ -316,7 +316,7 @@ public Iterable next() {
      * @see ReactiveX documentation: First
      */
     public Iterable latest() {
-        return BlockingOperatorLatest.latest(o);
+        return BlockingOperatorLatest.latest((Observable)o);
     }
 
     /**
@@ -398,7 +398,7 @@ public T singleOrDefault(T defaultValue, Func1 predicate) {
      * @see ReactiveX documentation: To
      */
     public Future toFuture() {
-        return BlockingOperatorToFuture.toFuture(o);
+        return BlockingOperatorToFuture.toFuture((Observable)o);
     }
 
     /**
@@ -430,7 +430,7 @@ private T blockForSingle(final Observable observable) {
         final AtomicReference returnException = new AtomicReference();
         final CountDownLatch latch = new CountDownLatch(1);
 
-        Subscription subscription = observable.subscribe(new Subscriber() {
+        Subscription subscription = ((Observable)observable).subscribe(new Subscriber() {
             @Override
             public void onCompleted() {
                 latch.countDown();
@@ -467,7 +467,7 @@ public void onNext(final T item) {
     public void subscribe() {
         final CountDownLatch cdl = new CountDownLatch(1);
         final Throwable[] error = { null };
-        Subscription s = o.subscribe(new Subscriber() {
+        Subscription s = ((Observable)o).subscribe(new Subscriber() {
             @Override
             public void onNext(T t) {
                 
@@ -504,7 +504,7 @@ public void subscribe(Observer observer) {
         final NotificationLite nl = NotificationLite.instance();
         final BlockingQueue queue = new LinkedBlockingQueue();
         
-        Subscription s = o.subscribe(new Subscriber() {
+        Subscription s = ((Observable)o).subscribe(new Subscriber() {
             @Override
             public void onNext(T t) {
                 queue.offer(nl.next(t));
@@ -592,7 +592,7 @@ public void call() {
             }
         }));
         
-        o.subscribe(s);
+        ((Observable)o).subscribe(s);
         
         try {
             for (;;) {
diff --git a/src/main/java/rx/singles/BlockingSingle.java b/src/main/java/rx/singles/BlockingSingle.java
index 6821bc5b82..9d327f6b6a 100644
--- a/src/main/java/rx/singles/BlockingSingle.java
+++ b/src/main/java/rx/singles/BlockingSingle.java
@@ -100,7 +100,7 @@ public void onError(Throwable error) {
      */
     @Experimental
     public Future toFuture() {
-        return BlockingOperatorToFuture.toFuture(single.toObservable());
+        return BlockingOperatorToFuture.toFuture(((Single)single).toObservable());
     }
 }
 

From c8e1b039ca6e6fddf5558657645043448d75ee77 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Mon, 4 Apr 2016 20:39:52 +0200
Subject: [PATCH 011/294] 1.x: make defensive copy of the properties in
 RxJavaPlugins

---
 src/main/java/rx/plugins/RxJavaPlugins.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/rx/plugins/RxJavaPlugins.java b/src/main/java/rx/plugins/RxJavaPlugins.java
index 6391a91185..acedd07449 100644
--- a/src/main/java/rx/plugins/RxJavaPlugins.java
+++ b/src/main/java/rx/plugins/RxJavaPlugins.java
@@ -200,7 +200,11 @@ public void registerSingleExecutionHook(RxJavaSingleExecutionHook impl) {
         }
     }
 
-    /* test */ static Object getPluginImplementationViaProperty(Class pluginClass, Properties props) {
+    /* test */ static Object getPluginImplementationViaProperty(Class pluginClass, Properties propsIn) {
+        // Make a defensive clone because traversal may fail with ConcurrentModificationException
+        // if the properties get changed by something outside RxJava.
+        Properties props = (Properties)propsIn.clone();
+        
         final String classSimpleName = pluginClass.getSimpleName();
         /*
          * Check system properties for plugin class.

From 6aee6f884bf8d3ad92fcae4158c5667dd5e405d8 Mon Sep 17 00:00:00 2001
From: adi1133 
Date: Thu, 7 Apr 2016 09:56:37 +0300
Subject: [PATCH 012/294] 1.x: Add maxConcurrent parameter to concatMapEager

* Add maxConcurrent parameter to concatMapEager

* Improve ConcatMapEager performance and add unit test

* Add test case and cleanup whitespace
---
 src/main/java/rx/Observable.java              | 36 ++++++++++++++++++-
 .../operators/OperatorEagerConcatMap.java     | 10 ++++--
 .../operators/OperatorEagerConcatMapTest.java | 36 ++++++++++++++++---
 3 files changed, 74 insertions(+), 8 deletions(-)

diff --git a/src/main/java/rx/Observable.java b/src/main/java/rx/Observable.java
index 439da019ed..0b2baab702 100644
--- a/src/main/java/rx/Observable.java
+++ b/src/main/java/rx/Observable.java
@@ -5353,7 +5353,41 @@ public final  Observable concatMapEager(Func1 0 required but it was " + capacityHint);
         }
-        return lift(new OperatorEagerConcatMap(mapper, capacityHint));
+        return lift(new OperatorEagerConcatMap(mapper, capacityHint, Integer.MAX_VALUE));
+    }
+
+    /**
+     * Maps a sequence of values into Observables and concatenates these Observables eagerly into a single
+     * Observable.
+     * 

+     * Eager concatenation means that once a subscriber subscribes, this operator subscribes to all of the
+     * source Observables. The operator buffers the values emitted by these Observables and then drains them in
+     * order, each one after the previous one completes.
+     * 

+     *  
Backpressure:

+     *  
Backpressure is honored towards the downstream, however, due to the eagerness requirement, sources
+     *      are subscribed to in unbounded mode and their values are queued up in an unbounded buffer.

+     *  
Scheduler:

+     *  
This method does not operate by default on a particular {@link Scheduler}.

+     * 

+     * @param  the value type
+     * @param mapper the function that maps a sequence of values into a sequence of Observables that will be
+     *               eagerly concatenated
+     * @param capacityHint hints about the number of expected source sequence values
+     * @param maxConcurrent the maximum number of concurrent subscribed observables
+     * @return
+     * @warn javadoc fails to describe the return value
+     * @since (if this graduates from Experimental/Beta to supported, replace this parenthetical with the release number)
+     */
+    @Experimental
+    public final  Observable concatMapEager(Func1> mapper, int capacityHint, int maxConcurrent) {
+        if (capacityHint < 1) {
+            throw new IllegalArgumentException("capacityHint > 0 required but it was " + capacityHint);
+        }
+        if (maxConcurrent < 1) {
+            throw new IllegalArgumentException("maxConcurrent > 0 required but it was " + capacityHint);
+        }
+        return lift(new OperatorEagerConcatMap(mapper, capacityHint, maxConcurrent));
     }
     
     /**
diff --git a/src/main/java/rx/internal/operators/OperatorEagerConcatMap.java b/src/main/java/rx/internal/operators/OperatorEagerConcatMap.java
index bbf2bcc48b..cfa46837b5 100644
--- a/src/main/java/rx/internal/operators/OperatorEagerConcatMap.java
+++ b/src/main/java/rx/internal/operators/OperatorEagerConcatMap.java
@@ -31,14 +31,16 @@
 public final class OperatorEagerConcatMap implements Operator {
     final Func1> mapper;
     final int bufferSize;
-    public OperatorEagerConcatMap(Func1> mapper, int bufferSize) {
+    private final int maxConcurrent;
+    public OperatorEagerConcatMap(Func1> mapper, int bufferSize, int maxConcurrent) {
         this.mapper = mapper;
         this.bufferSize = bufferSize;
+        this.maxConcurrent = maxConcurrent;
     }
     
     @Override
     public Subscriber call(Subscriber t) {
-        EagerOuterSubscriber outer = new EagerOuterSubscriber(mapper, bufferSize, t);
+        EagerOuterSubscriber outer = new EagerOuterSubscriber(mapper, bufferSize, maxConcurrent, t);
         outer.init();
         return outer;
     }
@@ -82,12 +84,13 @@ static final class EagerOuterSubscriber extends Subscriber {
         private EagerOuterProducer sharedProducer;
         
         public EagerOuterSubscriber(Func1> mapper, int bufferSize,
-                Subscriber actual) {
+                int maxConcurrent, Subscriber actual) {
             this.mapper = mapper;
             this.bufferSize = bufferSize;
             this.actual = actual;
             this.subscribers = new LinkedList>();
             this.wip = new AtomicInteger();
+            request(maxConcurrent == Integer.MAX_VALUE ? Long.MAX_VALUE : maxConcurrent);
         }
         
         void init() {
@@ -223,6 +226,7 @@ void drain() {
                                 }
                                 innerSubscriber.unsubscribe();
                                 innerDone = true;
+                                request(1);
                                 break;
                             }
                         }
diff --git a/src/test/java/rx/internal/operators/OperatorEagerConcatMapTest.java b/src/test/java/rx/internal/operators/OperatorEagerConcatMapTest.java
index 8d2d40bed4..e6298230e4 100644
--- a/src/test/java/rx/internal/operators/OperatorEagerConcatMapTest.java
+++ b/src/test/java/rx/internal/operators/OperatorEagerConcatMapTest.java
@@ -16,6 +16,8 @@
 
 package rx.internal.operators;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.concurrent.atomic.*;
 
 import org.junit.*;
@@ -302,11 +304,16 @@ public Observable call(Integer t) {
         ts.assertNotCompleted();
         ts.assertError(TestException.class);
     }
-    
+
     @Test(expected = IllegalArgumentException.class)
     public void testInvalidCapacityHint() {
         Observable.just(1).concatMapEager(toJust, 0);
     }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testInvalidMaxConcurrent() {
+        Observable.just(1).concatMapEager(toJust, RxRingBuffer.SIZE, 0);
+    }
     
     @Test
     public void testBackpressure() {
@@ -397,17 +404,38 @@ public void call(Integer t) {
     
     @Test
     public void testInnerNull() {
-        TestSubscriber ts = TestSubscriber.create();
-        
         Observable.just(1).concatMapEager(new Func1>() {
             @Override
             public Observable call(Integer t) {
                 return Observable.just(null);
             }
         }).subscribe(ts);
-        
+
         ts.assertNoErrors();
         ts.assertCompleted();
         ts.assertValue(null);
     }
+
+
+    @Test
+    public void testMaxConcurrent5() {
+        final List requests = new ArrayList();
+        Observable.range(1, 100).doOnRequest(new Action1() {
+            @Override
+            public void call(Long reqCount) {
+                requests.add(reqCount);
+            }
+        }).concatMapEager(toJust, RxRingBuffer.SIZE, 5).subscribe(ts);
+
+        ts.assertNoErrors();
+        ts.assertValueCount(100);
+        ts.assertCompleted();
+
+        Assert.assertEquals(5, (long) requests.get(0));
+        Assert.assertEquals(1, (long) requests.get(1));
+        Assert.assertEquals(1, (long) requests.get(2));
+        Assert.assertEquals(1, (long) requests.get(3));
+        Assert.assertEquals(1, (long) requests.get(4));
+        Assert.assertEquals(1, (long) requests.get(5));
+    }
 }

From 7593d8c4eb5c457ef7afe4ad0162093ec8e22d83 Mon Sep 17 00:00:00 2001
From: Artem Zinnatullin 
Date: Thu, 7 Apr 2016 09:57:14 +0300
Subject: [PATCH 013/294] 1.x fromCallable() @Experimental -> @Beta

---
 src/main/java/rx/Observable.java | 2 +-
 src/main/java/rx/Single.java     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/rx/Observable.java b/src/main/java/rx/Observable.java
index 0b2baab702..bd96ee4556 100644
--- a/src/main/java/rx/Observable.java
+++ b/src/main/java/rx/Observable.java
@@ -1464,7 +1464,7 @@ public static  Observable from(T[] array) {
      * @see #defer(Func0)
      * @since (if this graduates from Experimental/Beta to supported, replace this parenthetical with the release number)
      */
-    @Experimental
+    @Beta
     public static  Observable fromCallable(Callable func) {
         return create(new OnSubscribeFromCallable(func));
     }
diff --git a/src/main/java/rx/Single.java b/src/main/java/rx/Single.java
index c1565313ab..b1e2ed4074 100644
--- a/src/main/java/rx/Single.java
+++ b/src/main/java/rx/Single.java
@@ -603,7 +603,7 @@ public static  Single from(Future future, Scheduler scheduler
      *         the type of the item emitted by the {@link Single}.
      * @return a {@link Single} whose {@link Observer}s' subscriptions trigger an invocation of the given function.
      */
-    @Experimental
+    @Beta
     public static  Single fromCallable(final Callable func) {
         return create(new OnSubscribe() {
             @Override

From bcd7fa1ebb73594c69e85c6060fef27e74006e79 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Thu, 7 Apr 2016 08:59:56 +0200
Subject: [PATCH 014/294] 1.x: fix switchMap/switchOnNext producer retention
 and backpressure

---
 .../rx/internal/operators/OperatorSwitch.java | 382 ++++++++++--------
 .../util/atomic/SpscLinkedArrayQueue.java     |  31 +-
 .../operators/OperatorSwitchTest.java         |  91 ++++-
 3 files changed, 325 insertions(+), 179 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OperatorSwitch.java b/src/main/java/rx/internal/operators/OperatorSwitch.java
index 7d706f2a95..bbbcd9879d 100644
--- a/src/main/java/rx/internal/operators/OperatorSwitch.java
+++ b/src/main/java/rx/internal/operators/OperatorSwitch.java
@@ -16,14 +16,17 @@
 package rx.internal.operators;
 
 import java.util.*;
+import java.util.concurrent.atomic.AtomicLong;
 
 import rx.*;
 import rx.Observable;
 import rx.Observable.Operator;
 import rx.exceptions.CompositeException;
-import rx.internal.producers.ProducerArbiter;
+import rx.functions.Action0;
+import rx.internal.util.RxRingBuffer;
+import rx.internal.util.atomic.SpscLinkedArrayQueue;
 import rx.plugins.RxJavaPlugins;
-import rx.subscriptions.SerialSubscription;
+import rx.subscriptions.*;
 
 /**
  * Transforms an Observable that emits Observables into a single Observable that
@@ -45,6 +48,9 @@ private static final class HolderDelayError {
         static final OperatorSwitch INSTANCE = new OperatorSwitch(true);
     }
     /**
+     * Returns a singleton instance of the operator based on the delayError parameter.
+     * @param  the value type
+     * @param delayError should the errors of the inner sources delayed until the main sequence completes?
      * @return a singleton instance of this stateless operator.
      */
     @SuppressWarnings({ "unchecked" })
@@ -72,51 +78,80 @@ public Subscriber> call(final Subscriber extends Subscriber> {
         final Subscriber child;
         final SerialSubscription ssub;
-        final ProducerArbiter arbiter;
-        
         final boolean delayError;
+        final AtomicLong index;
+        final SpscLinkedArrayQueue queue;
+        final NotificationLite nl;
+
+        boolean emitting;
         
-        long index;
+        boolean missed;
         
-        Throwable error;
+        long requested;
         
-        boolean mainDone;
+        Producer producer;
         
-        List queue;
+        volatile boolean mainDone;
+
+        Throwable error;
         
         boolean innerActive;
         
-        boolean emitting;
-        
-        boolean missed;
+        static final Throwable TERMINAL_ERROR = new Throwable("Terminal error");
 
         SwitchSubscriber(Subscriber child, boolean delayError) {
             this.child = child;
-            this.arbiter = new ProducerArbiter();
             this.ssub = new SerialSubscription();
             this.delayError = delayError;
+            this.index = new AtomicLong();
+            this.queue = new SpscLinkedArrayQueue(RxRingBuffer.SIZE);
+            this.nl = NotificationLite.instance();
         }
         
         void init() {
             child.add(ssub);
+            child.add(Subscriptions.create(new Action0() {
+                @Override
+                public void call() {
+                    clearProducer();
+                }
+            }));
             child.setProducer(new Producer(){
 
                 @Override
                 public void request(long n) {
-                    if (n > 0) {
-                        arbiter.request(n);
+                    if (n > 0L) {
+                        childRequested(n);
+                    } else
+                    if (n < 0L) {
+                        throw new IllegalArgumentException("n >= 0 expected but it was " + n);
                     }
                 }
             });
         }
-
+        
+        void clearProducer() {
+            synchronized (this) {
+                producer = null;
+            }
+        }
+        
         @Override
         public void onNext(Observable t) {
+            long id = index.incrementAndGet();
+            
+            Subscription s = ssub.get();
+            if (s != null) {
+                s.unsubscribe();
+            }
+            
             InnerSubscriber inner;
+            
             synchronized (this) {
-                long id = ++index;
                 inner = new InnerSubscriber(id, this);
+
                 innerActive = true;
+                producer = null;
             }
             ssub.set(inner);
             
@@ -125,201 +160,228 @@ public void onNext(Observable t) {
 
         @Override
         public void onError(Throwable e) {
+            boolean success;
+            
             synchronized (this) {
-                e = updateError(e);
+                success = updateError(e);
+            }
+            if (success) {
                 mainDone = true;
-                
-                if (emitting) {
-                    missed = true;
-                    return;
-                }
-                if (delayError && innerActive) {
-                    return;
-                }
-                emitting = true;
+                drain();
+            } else {
+                pluginError(e);
             }
-            
-            child.onError(e);
         }
 
+        boolean updateError(Throwable next) {
+            Throwable e = error;
+            if (e == TERMINAL_ERROR) {
+                return false;
+            } else
+            if (e == null) {
+                error = next;
+            } else
+            if (e instanceof CompositeException) {
+                List list = new ArrayList(((CompositeException)e).getExceptions());
+                list.add(next);
+                error = new CompositeException(list);
+            } else {
+                error = new CompositeException(e, next);
+            }
+            return true;
+        }
+        
         @Override
         public void onCompleted() {
-            Throwable ex;
+            mainDone = true;
+            drain();
+        }
+        
+        void emit(T value, InnerSubscriber inner) {
             synchronized (this) {
-                mainDone = true;
-                if (emitting) {
-                    missed = true;
+                if (index.get() != inner.id) {
                     return;
                 }
-                if (innerActive) {
-                    return;
+                
+                queue.offer(inner, nl.next(value));
+            }
+            drain();
+        }
+
+        void error(Throwable e, long id) {
+            boolean success;
+            synchronized (this) {
+                if (index.get() == id) {
+                    success = updateError(e);
+                    innerActive = false;
+                    producer = null;
+                } else {
+                    success = true;
                 }
-                emitting = true;
-                ex = error;
             }
-            if (ex == null) {
-                child.onCompleted();
+            if (success) {
+                drain();
             } else {
-                child.onError(ex);
+                pluginError(e);
             }
         }
         
-        Throwable updateError(Throwable e) {
-            Throwable ex = error;
-            if (ex == null) {
-                error = e;
-            } else
-            if (ex instanceof CompositeException) {
-                CompositeException ce = (CompositeException) ex;
-                List list = new ArrayList(ce.getExceptions());
-                list.add(e);
-                e = new CompositeException(list);
-                error = e;
-            } else {
-                e = new CompositeException(Arrays.asList(ex, e));
-                error = e;
+        void complete(long id) {
+            synchronized (this) {
+                if (index.get() != id) {
+                    return;
+                }
+                innerActive = false;
+                producer = null;
             }
-            return e;
+            drain();
+        }
+
+        void pluginError(Throwable e) {
+            RxJavaPlugins.getInstance().getErrorHandler().handleError(e);
         }
         
-        void emit(T value, long id) {
+        void innerProducer(Producer p, long id) {
+            long n;
             synchronized (this) {
-                if (id != index) {
+                if (index.get() != id) {
                     return;
                 }
-                
+                n = requested;
+                producer = p;
+            }
+            
+            p.request(n);
+        }
+        
+        void childRequested(long n) {
+            Producer p;
+            synchronized (this) {
+                p = producer;
+                requested = BackpressureUtils.addCap(requested, n);
+            }
+            if (p != null) {
+                p.request(n);
+            }
+            drain();
+        }
+        
+        void drain() {
+            boolean localMainDone = mainDone;
+            boolean localInnerActive;
+            long localRequested;
+            Throwable localError;
+            synchronized (this) {
                 if (emitting) {
-                    List q = queue;
-                    if (q == null) {
-                        q = new ArrayList(4);
-                        queue = q;
-                    }
-                    q.add(value);
                     missed = true;
                     return;
                 }
-                
                 emitting = true;
+                localInnerActive = innerActive;
+                localRequested = requested;
+                localError = error;
+                if (localError != null && localError != TERMINAL_ERROR && !delayError) {
+                    error = TERMINAL_ERROR;
+                }
             }
-            
-            child.onNext(value);
-            
-            arbiter.produced(1);
-            
+
+            final SpscLinkedArrayQueue localQueue = queue;
+            final AtomicLong localIndex = index;
+            final Subscriber localChild = child;
+
             for (;;) {
-                if (child.isUnsubscribed()) {
-                    return;
-                }
-                
-                Throwable localError;
-                boolean localMainDone;
-                boolean localActive;
-                List localQueue;
-                synchronized (this) {
-                    if (!missed) {
-                        emitting = false;
+
+                long localEmission = 0L;
+
+                while (localEmission != localRequested) {
+                    if (localChild.isUnsubscribed()) {
                         return;
                     }
+
+                    boolean empty = localQueue.isEmpty();
                     
-                    localError = error;
-                    localMainDone = mainDone;
-                    localQueue = queue;
-                    localActive = innerActive;
-                }
-                
-                if (!delayError && localError != null) {
-                    child.onError(localError);
-                    return;
-                }
-                
-                if (localQueue == null && !localActive && localMainDone) {
-                    if (localError != null) {
-                        child.onError(localError);
-                    } else {
-                        child.onCompleted();
+                    if (checkTerminated(localMainDone, localInnerActive, localError, 
+                            localQueue, localChild, empty)) {
+                        return;
+                    }
+                    
+                    if (empty) {
+                        break;
+                    }
+                    
+                    @SuppressWarnings("unchecked")
+                    InnerSubscriber inner = (InnerSubscriber)localQueue.poll();
+                    T value = nl.getValue(localQueue.poll());
+                    
+                    if (localIndex.get() == inner.id) {
+                        localChild.onNext(value);
+                        localEmission++;
                     }
-                    return;
                 }
                 
-                if (localQueue != null) {
-                    int n = 0;
-                    for (T v : localQueue) {
-                        if (child.isUnsubscribed()) {
-                            return;
-                        }
-
-                        child.onNext(v);
-                        n++;
+                if (localEmission == localRequested) {
+                    if (localChild.isUnsubscribed()) {
+                        return;
                     }
                     
-                    arbiter.produced(n);
+                    if (checkTerminated(mainDone, localInnerActive, localError, localQueue, 
+                            localChild, localQueue.isEmpty())) {
+                        return;
+                    }
                 }
-            }
-        }
-
-        void error(Throwable e, long id) {
-            boolean drop;
-            synchronized (this) {
-                if (id == index) {
-                    innerActive = false;
-                    
-                    e = updateError(e);
+                
+                
+                synchronized (this) {
                     
-                    if (emitting) {
-                        missed = true;
-                        return;
+                    localRequested = requested;
+                    if (localRequested != Long.MAX_VALUE) {
+                        localRequested -= localEmission;
+                        requested = localRequested;
                     }
-                    if (delayError && !mainDone) {
+                    
+                    if (!missed) {
+                        emitting = false;
                         return;
                     }
-                    emitting = true;
+                    missed = false;
                     
-                    drop = false;
-                } else {
-                    drop = true;
+                    localMainDone = mainDone;
+                    localInnerActive = innerActive;
+                    localError = error;
+                    if (localError != null && localError != TERMINAL_ERROR && !delayError) {
+                        error = TERMINAL_ERROR;
+                    }
                 }
             }
-            
-            if (drop) {
-                pluginError(e);
-            } else {
-                child.onError(e);
-            }
         }
-        
-        void complete(long id) {
-            Throwable ex;
-            synchronized (this) {
-                if (id != index) {
-                    return;
-                }
-                innerActive = false;
-                
-                if (emitting) {
-                    missed = true;
-                    return;
-                }
-                
-                ex = error;
 
-                if (!mainDone) {
-                    return;
+        protected boolean checkTerminated(boolean localMainDone, boolean localInnerActive, Throwable localError,
+                final SpscLinkedArrayQueue localQueue, final Subscriber localChild, boolean empty) {
+            if (delayError) {
+                if (localMainDone && !localInnerActive && empty) {
+                    if (localError != null) {
+                        localChild.onError(localError);
+                    } else {
+                        localChild.onCompleted();
+                    }
+                    return true;
                 }
-            }
-            
-            if (ex != null) {
-                child.onError(ex);
             } else {
-                child.onCompleted();
+                if (localError != null) {
+                    localQueue.clear();
+                    localChild.onError(localError);
+                    return true;
+                } else
+                if (localMainDone && !localInnerActive && empty) {
+                    localChild.onCompleted();
+                    return true;
+                }
             }
-        }
-
-        void pluginError(Throwable e) {
-            RxJavaPlugins.getInstance().getErrorHandler().handleError(e);
+            return false;
         }
     }
     
-    private static final class InnerSubscriber extends Subscriber {
+    static final class InnerSubscriber extends Subscriber {
 
         private final long id;
 
@@ -332,12 +394,12 @@ private static final class InnerSubscriber extends Subscriber {
         
         @Override
         public void setProducer(Producer p) {
-            parent.arbiter.setProducer(p);
+            parent.innerProducer(p, id);
         }
 
         @Override
         public void onNext(T t) {
-            parent.emit(t, id);
+            parent.emit(t, this);
         }
 
         @Override
diff --git a/src/main/java/rx/internal/util/atomic/SpscLinkedArrayQueue.java b/src/main/java/rx/internal/util/atomic/SpscLinkedArrayQueue.java
index 33472a40da..23d8ad7c9e 100644
--- a/src/main/java/rx/internal/util/atomic/SpscLinkedArrayQueue.java
+++ b/src/main/java/rx/internal/util/atomic/SpscLinkedArrayQueue.java
@@ -30,23 +30,19 @@
 /**
  * A single-producer single-consumer array-backed queue which can allocate new arrays in case the consumer is slower
  * than the producer.
+ * 
+ * @param  the element type, not null
  */
 public final class SpscLinkedArrayQueue implements Queue {
     static final int MAX_LOOK_AHEAD_STEP = Integer.getInteger("jctools.spsc.max.lookahead.step", 4096);
-    protected volatile long producerIndex;
-    @SuppressWarnings("rawtypes")
-    static final AtomicLongFieldUpdater PRODUCER_INDEX =
-            AtomicLongFieldUpdater.newUpdater(SpscLinkedArrayQueue.class, "producerIndex");
+    protected final AtomicLong producerIndex;
     protected int producerLookAheadStep;
     protected long producerLookAhead;
     protected int producerMask;
     protected AtomicReferenceArray producerBuffer;
     protected int consumerMask;
     protected AtomicReferenceArray consumerBuffer;
-    protected volatile long consumerIndex;
-    @SuppressWarnings("rawtypes")
-    static final AtomicLongFieldUpdater CONSUMER_INDEX =
-            AtomicLongFieldUpdater.newUpdater(SpscLinkedArrayQueue.class, "consumerIndex");
+    protected final AtomicLong consumerIndex;
     private static final Object HAS_NEXT = new Object();
 
     public SpscLinkedArrayQueue(final int bufferSize) {
@@ -59,7 +55,8 @@ public SpscLinkedArrayQueue(final int bufferSize) {
         consumerBuffer = buffer;
         consumerMask = mask;
         producerLookAhead = mask - 1; // we know it's all empty to start with
-        soProducerIndex(0L);
+        producerIndex = new AtomicLong();
+        consumerIndex = new AtomicLong();
     }
 
     /**
@@ -219,27 +216,27 @@ private void adjustLookAheadStep(int capacity) {
     }
 
     private long lvProducerIndex() {
-        return producerIndex;
+        return producerIndex.get();
     }
 
     private long lvConsumerIndex() {
-        return consumerIndex;
+        return consumerIndex.get();
     }
 
     private long lpProducerIndex() {
-        return producerIndex;
+        return producerIndex.get();
     }
 
     private long lpConsumerIndex() {
-        return consumerIndex;
+        return consumerIndex.get();
     }
 
     private void soProducerIndex(long v) {
-        PRODUCER_INDEX.lazySet(this, v);
+        producerIndex.lazySet(v);
     }
 
     private void soConsumerIndex(long v) {
-        CONSUMER_INDEX.lazySet(this, v);
+        consumerIndex.lazySet(v);
     }
 
     private static int calcWrappedOffset(long index, int mask) {
@@ -321,11 +318,11 @@ public T element() {
      * 
Don't use the regular offer() with this at all!
      * @param first
      * @param second
-     * @return
+     * @return always true
      */
     public boolean offer(T first, T second) {
         final AtomicReferenceArray buffer = producerBuffer;
-        final long p = producerIndex;
+        final long p = lvProducerIndex();
         final int m = producerMask;
         
         int pi = calcWrappedOffset(p + 2, m);
diff --git a/src/test/java/rx/internal/operators/OperatorSwitchTest.java b/src/test/java/rx/internal/operators/OperatorSwitchTest.java
index 55170ab9ff..b673b56949 100644
--- a/src/test/java/rx/internal/operators/OperatorSwitchTest.java
+++ b/src/test/java/rx/internal/operators/OperatorSwitchTest.java
@@ -19,6 +19,7 @@
 import static org.mockito.Matchers.*;
 import static org.mockito.Mockito.*;
 
+import java.lang.ref.WeakReference;
 import java.util.*;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -32,7 +33,7 @@
 import rx.exceptions.*;
 import rx.functions.*;
 import rx.observers.TestSubscriber;
-import rx.schedulers.TestScheduler;
+import rx.schedulers.*;
 import rx.subjects.PublishSubject;
 
 public class OperatorSwitchTest {
@@ -654,7 +655,7 @@ public Observable call(Long t) {
         ts.requestMore(Long.MAX_VALUE - 1);
         ts.awaitTerminalEvent();
         assertTrue(ts.getOnNextEvents().size() > 0);
-        assertEquals(5, requests.size());
+        assertEquals(4, requests.size()); // depends on the request pattern
         assertEquals(Long.MAX_VALUE, (long) requests.get(requests.size()-1));
     }
 
@@ -790,4 +791,90 @@ public Observable call(Integer v) {
         ts.assertCompleted();
     }
 
+    Object ref;
+    
+    @Test
+    public void producerIsNotRetained() throws Exception {
+        ref = new Object();
+        
+        WeakReference wr = new WeakReference(ref);
+        
+        PublishSubject> ps = PublishSubject.create();
+        
+        Subscriber observer = new Subscriber() {
+            @Override
+            public void onCompleted() {
+            }
+
+            @Override
+            public void onError(Throwable e) {
+            }
+
+            @Override
+            public void onNext(Object t) {
+            }
+        };
+        
+        Observable.switchOnNext(ps).subscribe(observer);
+        
+        ps.onNext(Observable.just(ref));
+        
+        ref = null;
+        
+        System.gc();
+        
+        Thread.sleep(500);
+        
+        Assert.assertNotNull(observer); // retain every other referenec in the pipeline
+        Assert.assertNotNull(ps);
+        Assert.assertNull("Object retained!", wr.get());
+    }
+
+    @Test
+    public void switchAsyncHeavily() {
+        for (int i = 1; i < 1024; i *= 2) {
+            System.out.println("switchAsyncHeavily >> " + i);
+            
+            final Queue q = new ConcurrentLinkedQueue();
+            
+            final int j = i;
+            TestSubscriber ts = new TestSubscriber(i) {
+                int count;
+                @Override
+                public void onNext(Integer t) {
+                    super.onNext(t);
+                    if (++count == j) {
+                        count = 0;
+                        requestMore(j);
+                    }
+                }
+            };
+            
+            Observable.range(1, 25000)
+            .observeOn(Schedulers.computation(), i)
+            .switchMap(new Func1>() {
+                @Override
+                public Observable call(Integer v) {
+                    return Observable.range(1, 1000).observeOn(Schedulers.computation(), j)
+                            .doOnError(new Action1() {
+                                @Override
+                                public void call(Throwable e) {
+                                    q.add(e);
+                                }
+                            });
+                }
+            })
+            .timeout(10, TimeUnit.SECONDS)
+            .subscribe(ts);
+            
+            ts.awaitTerminalEvent(30, TimeUnit.SECONDS);
+            if (!q.isEmpty()) {
+                throw new AssertionError("Dropped exceptions", new CompositeException(q));
+            }
+            ts.assertNoErrors();
+            if (ts.getOnCompletedEvents().size() == 0) {
+                fail("switchAsyncHeavily timed out @ " + j + " (" + ts.getOnNextEvents().size() + " onNexts received)");
+            }
+        }
+    }
 }

From 1b70eb0afc2123658ddd5bb9fecbdfdf02aeabaf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C3=A1vid=20Karnok?= 
Date: Thu, 7 Apr 2016 17:37:31 +0200
Subject: [PATCH 015/294] 1.x: fix concatMap scalar source behavior

---
 .../internal/operators/OnSubscribeConcatMap.java   |  4 +++-
 .../rx/internal/operators/OperatorConcatTest.java  | 14 ++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java b/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java
index 001058763b..6f0e8435b4 100644
--- a/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java
+++ b/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java
@@ -273,6 +273,8 @@ void drain() {
                             if (source instanceof ScalarSynchronousObservable) {
                                 ScalarSynchronousObservable scalarSource = (ScalarSynchronousObservable) source;
                                 
+                                active = true;
+                                
                                 arbiter.setProducer(new ConcatMapInnerScalarProducer(scalarSource.get(), this));
                             } else {
                                 ConcatMapInnerSubscriber innerSubscriber = new ConcatMapInnerSubscriber(this);
@@ -352,7 +354,7 @@ public ConcatMapInnerScalarProducer(R value, ConcatMapSubscriber parent) {
 
         @Override
         public void request(long n) {
-            if (!once) {
+            if (!once && n > 0L) {
                 once = true;
                 ConcatMapSubscriber p = parent;
                 p.innerNext(value);
diff --git a/src/test/java/rx/internal/operators/OperatorConcatTest.java b/src/test/java/rx/internal/operators/OperatorConcatTest.java
index 65aa1f5307..8a39b16f9f 100644
--- a/src/test/java/rx/internal/operators/OperatorConcatTest.java
+++ b/src/test/java/rx/internal/operators/OperatorConcatTest.java
@@ -850,4 +850,18 @@ public Observable call(Integer t) {
         }
     }
     
+    @Test
+    public void scalarAndRangeBackpressured() {
+        TestSubscriber ts = TestSubscriber.create(0);
+        
+        Observable.just(1).concatWith(Observable.range(2, 3)).subscribe(ts);
+        
+        ts.assertNoValues();
+        
+        ts.requestMore(5);
+        
+        ts.assertValues(1, 2, 3, 4);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
 }
\ No newline at end of file

From eff6bb03eb333921bcb132159a92f2cf6717681d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C3=A1vid=20Karnok?= 
Date: Thu, 7 Apr 2016 17:51:00 +0200
Subject: [PATCH 016/294] More tests and fix empty() case as well

---
 .../operators/OnSubscribeConcatMap.java       | 12 +++--
 .../operators/OperatorConcatTest.java         | 46 +++++++++++++++++++
 2 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java b/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java
index 6f0e8435b4..c2799df758 100644
--- a/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java
+++ b/src/main/java/rx/internal/operators/OnSubscribeConcatMap.java
@@ -220,7 +220,7 @@ void drain() {
 
             final int delayErrorMode = this.delayErrorMode;
             
-            do {
+            for (;;) {
                 if (actual.isUnsubscribed()) {
                     return;
                 }
@@ -288,11 +288,17 @@ void drain() {
                                     return;
                                 }
                             }
+                            request(1);
+                        } else {
+                            request(1);
+                            continue;
                         }
-                        request(1);
                     }
                 }
-            } while (wip.decrementAndGet() != 0);
+                if (wip.decrementAndGet() == 0) {
+                    break;
+                }
+            }
         }
         
         void drainError(Throwable mapperError) {
diff --git a/src/test/java/rx/internal/operators/OperatorConcatTest.java b/src/test/java/rx/internal/operators/OperatorConcatTest.java
index 8a39b16f9f..a824374659 100644
--- a/src/test/java/rx/internal/operators/OperatorConcatTest.java
+++ b/src/test/java/rx/internal/operators/OperatorConcatTest.java
@@ -864,4 +864,50 @@ public void scalarAndRangeBackpressured() {
         ts.assertCompleted();
         ts.assertNoErrors();
     }
+    
+    @Test
+    public void scalarAndEmptyBackpressured() {
+        TestSubscriber ts = TestSubscriber.create(0);
+        
+        Observable.just(1).concatWith(Observable.empty()).subscribe(ts);
+        
+        ts.assertNoValues();
+        
+        ts.requestMore(5);
+        
+        ts.assertValue(1);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
+
+    @Test
+    public void rangeAndEmptyBackpressured() {
+        TestSubscriber ts = TestSubscriber.create(0);
+        
+        Observable.range(1, 2).concatWith(Observable.empty()).subscribe(ts);
+        
+        ts.assertNoValues();
+        
+        ts.requestMore(5);
+        
+        ts.assertValues(1, 2);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
+
+    @Test
+    public void emptyAndScalarBackpressured() {
+        TestSubscriber ts = TestSubscriber.create(0);
+        
+        Observable.empty().concatWith(Observable.just(1)).subscribe(ts);
+        
+        ts.assertNoValues();
+        
+        ts.requestMore(5);
+        
+        ts.assertValue(1);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
+
 }
\ No newline at end of file

From ebf0e3f36519ffe471c63deb2c02b3636ef79900 Mon Sep 17 00:00:00 2001
From: Dave Moten 
Date: Fri, 8 Apr 2016 05:30:39 +1000
Subject: [PATCH 017/294] fix undesired execution in ExecutorScheduler worker
 when unsubscribed

---
 .../java/rx/schedulers/ExecutorScheduler.java | 12 +++++++-
 .../rx/schedulers/ExecutorSchedulerTest.java  | 30 +++++++++++++++++++
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/src/main/java/rx/schedulers/ExecutorScheduler.java b/src/main/java/rx/schedulers/ExecutorScheduler.java
index 8e5c9bf22e..70f217e49b 100644
--- a/src/main/java/rx/schedulers/ExecutorScheduler.java
+++ b/src/main/java/rx/schedulers/ExecutorScheduler.java
@@ -96,11 +96,20 @@ public Subscription schedule(Action0 action) {
         @Override
         public void run() {
             do {
+                if (tasks.isUnsubscribed()) {
+                    queue.clear();
+                    return;
+                }
+
                 ScheduledAction sa = queue.poll();
+                if (sa == null) {
+                    return;
+                }
+
                 if (!sa.isUnsubscribed()) {
                     sa.run();
                 }
-            } while (wip.decrementAndGet() > 0);
+            } while (wip.decrementAndGet() != 0);
         }
         
         @Override
@@ -170,6 +179,7 @@ public boolean isUnsubscribed() {
         @Override
         public void unsubscribe() {
             tasks.unsubscribe();
+            queue.clear();
         }
         
     }
diff --git a/src/test/java/rx/schedulers/ExecutorSchedulerTest.java b/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
index ed4e03213d..0777208cab 100644
--- a/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
+++ b/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
@@ -18,9 +18,11 @@
 import static org.junit.Assert.*;
 
 import java.lang.management.*;
+import java.util.Queue;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
+import org.junit.Assert;
 import org.junit.Test;
 
 import rx.*;
@@ -275,4 +277,32 @@ public void call() {
         
         assertFalse(w.tasks.hasSubscriptions());
     }
+    
+    @Test
+    public void workerUnderConcurrentUnsubscribeShouldNotAllowLaterTasksToRunDueToUnsubscriptionRace() {
+        Scheduler scheduler = Schedulers.from(Executors.newFixedThreadPool(1));
+        for (int i = 0; i< 1000; i++) {
+            Worker worker = scheduler.createWorker();
+            final Queue q = new ConcurrentLinkedQueue();
+            Action0 action1 = new Action0() {
+    
+                @Override
+                public void call() {
+                    q.add(1);
+                }};
+            Action0 action2 = new Action0() {
+    
+                @Override
+                public void call() {
+                    q.add(2);
+                }};
+            worker.schedule(action1);
+            worker.schedule(action2);
+            worker.unsubscribe();
+            if (q.size()==1 && q.poll() == 2) {
+                //expect a queue of 1,2 or 1. If queue is just 2 then we have a problem!
+                Assert.fail("wrong order on loop " + i);
+            }
+        }
+    }
 }

From 53c31cde6906bad5825b2b65c91c1d268a6a32b5 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Fri, 8 Apr 2016 22:56:14 +0200
Subject: [PATCH 018/294] 1.x: observeOn now replenishes with constant rate
 (#3795)

---
 .../internal/operators/OperatorObserveOn.java | 45 ++++++++--------
 .../operators/OperatorObserveOnTest.java      | 51 ++++++++++++++++++-
 .../rx/observables/AsyncOnSubscribeTest.java  |  7 +--
 3 files changed, 75 insertions(+), 28 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OperatorObserveOn.java b/src/main/java/rx/internal/operators/OperatorObserveOn.java
index 2a7c7684dd..1720e1dfe2 100644
--- a/src/main/java/rx/internal/operators/OperatorObserveOn.java
+++ b/src/main/java/rx/internal/operators/OperatorObserveOn.java
@@ -83,7 +83,8 @@ private static final class ObserveOnSubscriber extends Subscriber implemen
         final NotificationLite on;
         final boolean delayError;
         final Queue queue;
-        final int bufferSize;
+        /** The emission threshold that should trigger a replenishing request. */
+        final int limit;
         
         // the status of the current stream
         volatile boolean finished;
@@ -97,6 +98,9 @@ private static final class ObserveOnSubscriber extends Subscriber implemen
          * reading finished (acquire).
          */
         Throwable error;
+        
+        /** Remembers how many elements have been emitted before the requests run out. */
+        long emitted;
 
         // do NOT pass the Subscriber through to couple the subscription chain ... unsubscribing on the parent should
         // not prevent anything downstream from consuming, which will happen if the Subscription is chained
@@ -105,12 +109,16 @@ public ObserveOnSubscriber(Scheduler scheduler, Subscriber child, boo
             this.recursiveScheduler = scheduler.createWorker();
             this.delayError = delayError;
             this.on = NotificationLite.instance();
-            this.bufferSize = (bufferSize > 0) ? bufferSize : RxRingBuffer.SIZE;
+            int calculatedSize = (bufferSize > 0) ? bufferSize : RxRingBuffer.SIZE;
+            // this formula calculates the 75% of the bufferSize, rounded up to the next integer
+            this.limit = calculatedSize - (calculatedSize >> 2);
             if (UnsafeAccess.isUnsafeAvailable()) {
-                queue = new SpscArrayQueue(this.bufferSize);
+                queue = new SpscArrayQueue(calculatedSize);
             } else {
-                queue = new SpscAtomicArrayQueue(this.bufferSize);
+                queue = new SpscAtomicArrayQueue(calculatedSize);
             }
+            // signal that this is an async operator capable of receiving this many
+            request(calculatedSize);
         }
         
         void init() {
@@ -133,12 +141,6 @@ public void request(long n) {
             localChild.add(this);
         }
 
-        @Override
-        public void onStart() {
-            // signal that this is an async operator capable of receiving this many
-            request(this.bufferSize);
-        }
-
         @Override
         public void onNext(final T t) {
             if (isUnsubscribed() || finished) {
@@ -180,9 +182,8 @@ protected void schedule() {
         // only execute this from schedule()
         @Override
         public void call() {
-            long emitted = 0L;
-
             long missed = 1L;
+            long currentEmission = emitted;
 
             // these are accessed in a tight loop around atomics so
             // loading them into local variables avoids the mandatory re-reading
@@ -197,7 +198,6 @@ public void call() {
             
             for (;;) {
                 long requestAmount = requested.get();
-                long currentEmission = 0L;
                 
                 while (requestAmount != currentEmission) {
                     boolean done = finished;
@@ -215,7 +215,11 @@ public void call() {
                     localChild.onNext(localOn.getValue(v));
 
                     currentEmission++;
-                    emitted++;
+                    if (currentEmission == limit) {
+                        requestAmount = BackpressureUtils.produced(requested, currentEmission);
+                        request(currentEmission);
+                        currentEmission = 0L;
+                    }
                 }
                 
                 if (requestAmount == currentEmission) {
@@ -223,20 +227,13 @@ public void call() {
                         return;
                     }
                 }
-                
-                if (currentEmission != 0L) {
-                    BackpressureUtils.produced(requested, currentEmission);
-                }
-                
+
+                emitted = currentEmission;
                 missed = counter.addAndGet(-missed);
                 if (missed == 0L) {
                     break;
                 }
             }
-            
-            if (emitted != 0L) {
-                request(emitted);
-            }
         }
         
         boolean checkTerminated(boolean done, boolean isEmpty, Subscriber a, Queue q) {
@@ -285,4 +282,4 @@ boolean checkTerminated(boolean done, boolean isEmpty, Subscriber a,
             return false;
         }
     }
-}
+}
\ No newline at end of file
diff --git a/src/test/java/rx/internal/operators/OperatorObserveOnTest.java b/src/test/java/rx/internal/operators/OperatorObserveOnTest.java
index 323f74b786..29c1a4a8d5 100644
--- a/src/test/java/rx/internal/operators/OperatorObserveOnTest.java
+++ b/src/test/java/rx/internal/operators/OperatorObserveOnTest.java
@@ -864,7 +864,7 @@ public void testErrorDelayedAsync() {
     
     @Test
     public void requestExactCompletesImmediately() {
-TestSubscriber ts = TestSubscriber.create(0);
+        TestSubscriber ts = TestSubscriber.create(0);
         
         TestScheduler test = Schedulers.test();
 
@@ -884,4 +884,53 @@ public void requestExactCompletesImmediately() {
         ts.assertNoErrors();
         ts.assertCompleted();
     }
+    
+    @Test
+    public void fixedReplenishPattern() {
+        TestSubscriber ts = TestSubscriber.create(0);
+
+        TestScheduler test = Schedulers.test();
+        
+        final List requests = new ArrayList();
+        
+        Observable.range(1, 100)
+        .doOnRequest(new Action1() {
+            @Override
+            public void call(Long v) {
+                requests.add(v);
+            }
+        })
+        .observeOn(test, 16).subscribe(ts);
+        
+        test.advanceTimeBy(1, TimeUnit.SECONDS);
+        ts.requestMore(20);
+        test.advanceTimeBy(1, TimeUnit.SECONDS);
+        ts.requestMore(10);
+        test.advanceTimeBy(1, TimeUnit.SECONDS);
+        ts.requestMore(50);
+        test.advanceTimeBy(1, TimeUnit.SECONDS);
+        ts.requestMore(35);
+        test.advanceTimeBy(1, TimeUnit.SECONDS);
+        
+        ts.assertValueCount(100);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+        
+        assertEquals(Arrays.asList(16L, 12L, 12L, 12L, 12L, 12L, 12L, 12L, 12L), requests);
+    }
+    
+    @Test
+    public void bufferSizesWork() {
+        for (int i = 1; i <= 1024; i = i * 2) {
+            TestSubscriber ts = TestSubscriber.create();
+            
+            Observable.range(1, 1000 * 1000).observeOn(Schedulers.computation(), i)
+            .subscribe(ts);
+            
+            ts.awaitTerminalEvent();
+            ts.assertValueCount(1000 * 1000);
+            ts.assertCompleted();
+            ts.assertNoErrors();
+        }
+    }
 }
diff --git a/src/test/java/rx/observables/AsyncOnSubscribeTest.java b/src/test/java/rx/observables/AsyncOnSubscribeTest.java
index 633d229921..cd74520971 100644
--- a/src/test/java/rx/observables/AsyncOnSubscribeTest.java
+++ b/src/test/java/rx/observables/AsyncOnSubscribeTest.java
@@ -383,7 +383,8 @@ public void call() {
                                     }}));
                         break;
                     case 2:
-                        observer.onNext(Observable.never()
+                        observer.onNext(Observable.just(1)
+                                .concatWith(Observable.never())
                                 .subscribeOn(scheduler)
                                 .doOnUnsubscribe(new Action0(){
                                     @Override
@@ -397,7 +398,7 @@ public void call() {
                     return state + 1;
                 }});
         Subscription subscription = Observable.create(os)
-            .observeOn(scheduler)
+            .observeOn(scheduler, 1)
             .subscribe(subscriber);
         sub.set(subscription);
         subscriber.assertNoValues();
@@ -465,4 +466,4 @@ public Integer call(Integer state, Long requested, Observer
Date: Fri, 8 Apr 2016 23:39:57 +0200
Subject: [PATCH 019/294] 1.x: fix takeLast() backpressure (#3839)

---
 .../internal/operators/BackpressureUtils.java |  99 ++++++++++--
 .../internal/operators/OperatorTakeLast.java  |  95 +++++++-----
 .../operators/OperatorTakeLastTimed.java      | 142 +++++++++++-------
 .../operators/TakeLastQueueProducer.java      | 124 ---------------
 .../operators/OperatorTakeLastTest.java       |  98 ++++++++++--
 .../operators/OperatorTakeLastTimedTest.java  |  80 +++++++++-
 6 files changed, 396 insertions(+), 242 deletions(-)
 delete mode 100644 src/main/java/rx/internal/operators/TakeLastQueueProducer.java

diff --git a/src/main/java/rx/internal/operators/BackpressureUtils.java b/src/main/java/rx/internal/operators/BackpressureUtils.java
index 3d199567c6..4a2fa90f48 100644
--- a/src/main/java/rx/internal/operators/BackpressureUtils.java
+++ b/src/main/java/rx/internal/operators/BackpressureUtils.java
@@ -19,6 +19,8 @@
 import java.util.concurrent.atomic.*;
 
 import rx.Subscriber;
+import rx.functions.Func1;
+import rx.internal.util.UtilityFunctions;
 
 /**
  * Utility functions for use with backpressure.
@@ -140,6 +142,59 @@ public static long addCap(long a, long b) {
      * @param actual the subscriber to receive the values
      */
     public static  void postCompleteDone(AtomicLong requested, Queue queue, Subscriber actual) {
+        postCompleteDone(requested, queue, actual, UtilityFunctions.identity());
+    }
+    
+    /**
+     * Accumulates requests (validated) and handles the completed mode draining of the queue based on the requests.
+     * 
+     * 

+     * Post-completion backpressure handles the case when a source produces values based on
+     * requests when it is active but more values are available even after its completion.
+     * In this case, the onCompleted() can't just emit the contents of the queue but has to
+     * coordinate with the requested amounts. This requires two distinct modes: active and
+     * completed. In active mode, requests flow through and the queue is not accessed but
+     * in completed mode, requests no-longer reach the upstream but help in draining the queue.
+     * 
+     * @param  the value type to emit
+     * @param requested the holder of current requested amount
+     * @param n the value requested;
+     * @param queue the queue holding values to be emitted after completion
+     * @param actual the subscriber to receive the values
+     * @return true if in the active mode and the request amount of n can be relayed to upstream, false if
+     * in the post-completed mode and the queue is draining.
+     */
+    public static  boolean postCompleteRequest(AtomicLong requested, long n, Queue queue, Subscriber actual) {
+        return postCompleteRequest(requested, n, queue, actual, UtilityFunctions.identity());
+    }
+    
+    /**
+     * Signals the completion of the main sequence and switches to post-completion replay mode
+     * and allows exit transformation on the queued values.
+     * 
+     * 

+     * Don't modify the queue after calling this method!
+     * 
+     * 

+     * Post-completion backpressure handles the case when a source produces values based on
+     * requests when it is active but more values are available even after its completion.
+     * In this case, the onCompleted() can't just emit the contents of the queue but has to
+     * coordinate with the requested amounts. This requires two distinct modes: active and
+     * completed. In active mode, requests flow through and the queue is not accessed but
+     * in completed mode, requests no-longer reach the upstream but help in draining the queue.
+     * 

+     * The algorithm utilizes the most significant bit (bit 63) of a long value (AtomicLong) since
+     * request amount only goes up to Long.MAX_VALUE (bits 0-62) and negative values aren't
+     * allowed.
+     * 
+     * @param  the value type in the queue
+     * @param  the value type to emit
+     * @param requested the holder of current requested amount
+     * @param queue the queue holding values to be emitted after completion
+     * @param actual the subscriber to receive the values
+     * @param exitTransform the transformation to apply on the dequeued value to get the value to be emitted
+     */
+    public static  void postCompleteDone(AtomicLong requested, Queue queue, Subscriber actual, Func1 exitTransform) {
         for (;;) {
             long r = requested.get();
             
@@ -156,7 +211,7 @@ public static  void postCompleteDone(AtomicLong requested, Queue queue, Su
                 // are requests available start draining the queue
                 if (r != 0L) {
                     // if the switch happened when there was outstanding requests, start draining
-                    postCompleteDrain(requested, queue, actual);
+                    postCompleteDrain(requested, queue, actual, exitTransform);
                 }
                 return;
             }
@@ -164,7 +219,8 @@ public static  void postCompleteDone(AtomicLong requested, Queue queue, Su
     }
     
     /**
-     * Accumulates requests (validated) and handles the completed mode draining of the queue based on the requests.
+     * Accumulates requests (validated) and handles the completed mode draining of the queue based on the requests
+     * and allows exit transformation on the queued values.
      * 
      * 

      * Post-completion backpressure handles the case when a source produces values based on
@@ -174,15 +230,17 @@ public static  void postCompleteDone(AtomicLong requested, Queue queue, Su
      * completed. In active mode, requests flow through and the queue is not accessed but
      * in completed mode, requests no-longer reach the upstream but help in draining the queue.
      * 
-     * @param  the value type to emit
+     * @param  the value type in the queue
+     * @param  the value type to emit
      * @param requested the holder of current requested amount
      * @param n the value requested;
      * @param queue the queue holding values to be emitted after completion
      * @param actual the subscriber to receive the values
+     * @param exitTransform the transformation to apply on the dequeued value to get the value to be emitted
      * @return true if in the active mode and the request amount of n can be relayed to upstream, false if
      * in the post-completed mode and the queue is draining.
      */
-    public static  boolean postCompleteRequest(AtomicLong requested, long n, Queue queue, Subscriber actual) {
+    public static  boolean postCompleteRequest(AtomicLong requested, long n, Queue queue, Subscriber actual, Func1 exitTransform) {
         if (n < 0L) {
             throw new IllegalArgumentException("n >= 0 required but it was " + n);
         }
@@ -209,7 +267,7 @@ public static  boolean postCompleteRequest(AtomicLong requested, long n, Queu
                 // if there was no outstanding request before and in
                 // the post-completed state, start draining
                 if (r == COMPLETED_MASK) {
-                    postCompleteDrain(requested, queue, actual);
+                    postCompleteDrain(requested, queue, actual, exitTransform);
                     return false;
                 }
                 // returns true for active mode and false if the completed flag was set
@@ -219,16 +277,37 @@ public static  boolean postCompleteRequest(AtomicLong requested, long n, Queu
     }
     
     /**
-     * Drains the queue based on the outstanding requests in post-completed mode (only!).
+     * Drains the queue based on the outstanding requests in post-completed mode (only!)
+     * and allows exit transformation on the queued values.
      * 
-     * @param  the value type to emit
+     * @param  the value type in the queue
+     * @param  the value type to emit
      * @param requested the holder of current requested amount
      * @param queue the queue holding values to be emitted after completion
-     * @param actual the subscriber to receive the values
+     * @param subscriber the subscriber to receive the values
+     * @param exitTransform the transformation to apply on the dequeued value to get the value to be emitted
      */
-    static  void postCompleteDrain(AtomicLong requested, Queue queue, Subscriber subscriber) {
+    static  void postCompleteDrain(AtomicLong requested, Queue queue, Subscriber subscriber, Func1 exitTransform) {
         
         long r = requested.get();
+        
+        // Run on a fast-path if the downstream is unbounded
+        if (r == Long.MAX_VALUE) {
+            for (;;) {
+                if (subscriber.isUnsubscribed()) {
+                    return;
+                }
+                
+                T v = queue.poll();
+                
+                if (v == null) {
+                    subscriber.onCompleted();
+                    return;
+                }
+                
+                subscriber.onNext(exitTransform.call(v));
+            }
+        }
         /*
          * Since we are supposed to be in the post-complete state, 
          * requested will have its top bit set.
@@ -264,7 +343,7 @@ static  void postCompleteDrain(AtomicLong requested, Queue queue, Subscrib
                     return;
                 }
                 
-                subscriber.onNext(v);
+                subscriber.onNext(exitTransform.call(v));
                 
                 e++;
             }
diff --git a/src/main/java/rx/internal/operators/OperatorTakeLast.java b/src/main/java/rx/internal/operators/OperatorTakeLast.java
index 2812c4e87c..77f8c93993 100644
--- a/src/main/java/rx/internal/operators/OperatorTakeLast.java
+++ b/src/main/java/rx/internal/operators/OperatorTakeLast.java
@@ -16,15 +16,18 @@
 package rx.internal.operators;
 
 import java.util.ArrayDeque;
-import java.util.Deque;
+import java.util.concurrent.atomic.AtomicLong;
 
+import rx.*;
 import rx.Observable.Operator;
-import rx.Subscriber;
+import rx.functions.Func1;
 
 /**
  * Returns an Observable that emits the at most the last count items emitted by the source Observable.
  * 

  * 
+ * 
+ * @param  the value type
  */
 public final class OperatorTakeLast implements Operator {
 
@@ -39,44 +42,62 @@ public OperatorTakeLast(int count) {
 
     @Override
     public Subscriber call(final Subscriber subscriber) {
-        final Deque deque = new ArrayDeque();
-        final NotificationLite notification = NotificationLite.instance();
-        final TakeLastQueueProducer producer = new TakeLastQueueProducer(notification, deque, subscriber);
-        subscriber.setProducer(producer);
-
-        return new Subscriber(subscriber) {
-
-            // no backpressure up as it wants to receive and discard all but the last
+        final TakeLastSubscriber parent = new TakeLastSubscriber(subscriber, count);
+        
+        subscriber.add(parent);
+        subscriber.setProducer(new Producer() {
             @Override
-            public void onStart() {
-                // we do this to break the chain of the child subscriber being passed through
-                request(Long.MAX_VALUE);
+            public void request(long n) {
+                parent.requestMore(n);
             }
-
-            @Override
-            public void onCompleted() {
-                deque.offer(notification.completed());
-                producer.startEmitting();
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                deque.clear();
-                subscriber.onError(e);
+        });
+        
+        return parent;
+    }
+    
+    static final class TakeLastSubscriber extends Subscriber implements Func1 {
+        final Subscriber actual;
+        final AtomicLong requested;
+        final ArrayDeque queue;
+        final int count;
+        final NotificationLite nl;
+        
+        public TakeLastSubscriber(Subscriber actual, int count) {
+            this.actual = actual;
+            this.count = count;
+            this.requested = new AtomicLong();
+            this.queue = new ArrayDeque();
+            this.nl = NotificationLite.instance();
+        }
+        
+        @Override
+        public void onNext(T t) {
+            if (queue.size() == count) {
+                queue.poll();
             }
-
-            @Override
-            public void onNext(T value) {
-                if (count == 0) {
-                    // If count == 0, we do not need to put value into deque and
-                    // remove it at once. We can ignore the value directly.
-                    return;
-                }
-                if (deque.size() == count) {
-                    deque.removeFirst();
-                }
-                deque.offerLast(notification.next(value));
+            queue.offer(nl.next(t));
+        }
+        
+        @Override
+        public void onError(Throwable e) {
+            queue.clear();
+            actual.onError(e);
+        }
+        
+        @Override
+        public void onCompleted() {
+            BackpressureUtils.postCompleteDone(requested, queue, actual, this);
+        }
+        
+        @Override
+        public T call(Object t) {
+            return nl.getValue(t);
+        }
+        
+        void requestMore(long n) {
+            if (n > 0L) {
+                BackpressureUtils.postCompleteRequest(requested, n, queue, actual, this);
             }
-        };
+        }
     }
 }
diff --git a/src/main/java/rx/internal/operators/OperatorTakeLastTimed.java b/src/main/java/rx/internal/operators/OperatorTakeLastTimed.java
index ec7cc12493..383f41715c 100644
--- a/src/main/java/rx/internal/operators/OperatorTakeLastTimed.java
+++ b/src/main/java/rx/internal/operators/OperatorTakeLastTimed.java
@@ -15,18 +15,20 @@
  */
 package rx.internal.operators;
 
-import rx.Observable.Operator;
-import rx.Scheduler;
-import rx.Subscriber;
-
 import java.util.ArrayDeque;
-import java.util.Deque;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLong;
+
+import rx.*;
+import rx.Observable.Operator;
+import rx.functions.Func1;
 
 /**
  * Returns an Observable that emits the last count items emitted by the source Observable.
  * 

  * 
+ * 
+ * @param  the value type
  */
 public final class OperatorTakeLastTimed implements Operator {
 
@@ -51,60 +53,92 @@ public OperatorTakeLastTimed(int count, long time, TimeUnit unit, Scheduler sche
 
     @Override
     public Subscriber call(final Subscriber subscriber) {
-        final Deque buffer = new ArrayDeque();
-        final Deque timestampBuffer = new ArrayDeque();
-        final NotificationLite notification = NotificationLite.instance();
-        final TakeLastQueueProducer producer = new TakeLastQueueProducer(notification, buffer, subscriber);
-        subscriber.setProducer(producer);
-        return new Subscriber(subscriber) {
-
-            protected void runEvictionPolicy(long now) {
-                // trim size
-                while (count >= 0 && buffer.size() > count) {
-                    timestampBuffer.pollFirst();
-                    buffer.pollFirst();
-                }
-                // remove old entries
-                while (!buffer.isEmpty()) {
-                    long v = timestampBuffer.peekFirst();
-                    if (v < now - ageMillis) {
-                        timestampBuffer.pollFirst();
-                        buffer.pollFirst();
-                    } else {
-                        break;
-                    }
-                }
-            }
-
-            // no backpressure up as it wants to receive and discard all but the last
+        final TakeLastTimedSubscriber parent = new TakeLastTimedSubscriber(subscriber, count, ageMillis, scheduler);
+        
+        subscriber.add(parent);
+        subscriber.setProducer(new Producer() {
             @Override
-            public void onStart() {
-                // we do this to break the chain of the child subscriber being passed through
-                request(Long.MAX_VALUE);
-            }
-            
-            @Override
-            public void onNext(T args) {
-                long t = scheduler.now();
-                timestampBuffer.add(t);
-                buffer.add(notification.next(args));
-                runEvictionPolicy(t);
+            public void request(long n) {
+                parent.requestMore(n);
             }
+        });
+        
+        return parent;
+    }
+    
+    static final class TakeLastTimedSubscriber extends Subscriber implements Func1 {
+        final Subscriber actual;
+        final long ageMillis;
+        final Scheduler scheduler;
+        final int count;
+        final AtomicLong requested;
+        final ArrayDeque queue;
+        final ArrayDeque queueTimes;
+        final NotificationLite nl;
 
-            @Override
-            public void onError(Throwable e) {
-                timestampBuffer.clear();
-                buffer.clear();
-                subscriber.onError(e);
+        public TakeLastTimedSubscriber(Subscriber actual, int count, long ageMillis, Scheduler scheduler) {
+            this.actual = actual;
+            this.count = count;
+            this.ageMillis = ageMillis;
+            this.scheduler = scheduler;
+            this.requested = new AtomicLong();
+            this.queue = new ArrayDeque();
+            this.queueTimes = new ArrayDeque();
+            this.nl = NotificationLite.instance();
+        }
+        
+        @Override
+        public void onNext(T t) {
+            if (count != 0) {
+                long now = scheduler.now();
+    
+                if (queue.size() == count) {
+                    queue.poll();
+                    queueTimes.poll();
+                }
+                
+                evictOld(now);
+                
+                queue.offer(nl.next(t));
+                queueTimes.offer(now);
             }
+        }
 
-            @Override
-            public void onCompleted() {
-                runEvictionPolicy(scheduler.now());
-                timestampBuffer.clear();
-                buffer.offer(notification.completed());
-                producer.startEmitting();
+        protected void evictOld(long now) {
+            long minTime = now - ageMillis;
+            for (;;) {
+                Long time = queueTimes.peek();
+                if (time == null || time >= minTime) {
+                    break;
+                }
+                queue.poll();
+                queueTimes.poll();
             }
-        };
+        }
+        
+        @Override
+        public void onError(Throwable e) {
+            queue.clear();
+            queueTimes.clear();
+            actual.onError(e);
+        }
+        
+        @Override
+        public void onCompleted() {
+            evictOld(scheduler.now());
+            
+            queueTimes.clear();
+            
+            BackpressureUtils.postCompleteDone(requested, queue, actual, this);
+        }
+        
+        @Override
+        public T call(Object t) {
+            return nl.getValue(t);
+        }
+        
+        void requestMore(long n) {
+            BackpressureUtils.postCompleteRequest(requested, n, queue, actual, this);
+        }
     }
 }
diff --git a/src/main/java/rx/internal/operators/TakeLastQueueProducer.java b/src/main/java/rx/internal/operators/TakeLastQueueProducer.java
deleted file mode 100644
index 664dfd0e3a..0000000000
--- a/src/main/java/rx/internal/operators/TakeLastQueueProducer.java
+++ /dev/null
@@ -1,124 +0,0 @@
-/**
- * Copyright 2014 Netflix, Inc.
- * 
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- * http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package rx.internal.operators;
-
-
-import java.util.Deque;
-import java.util.concurrent.atomic.AtomicLong;
-
-import rx.Producer;
-import rx.Subscriber;
-import rx.exceptions.Exceptions;
-
-final class TakeLastQueueProducer extends AtomicLong implements Producer {
-
-    private final NotificationLite notification;
-    private final Deque deque;
-    private final Subscriber subscriber;
-    private volatile boolean emittingStarted = false;
-
-    public TakeLastQueueProducer(NotificationLite n, Deque q, Subscriber subscriber) {
-        this.notification = n;
-        this.deque = q;
-        this.subscriber = subscriber;
-    }
-
-    void startEmitting() {
-        if (!emittingStarted) {
-            emittingStarted = true;
-            emit(0); // start emitting
-        }
-    }
-
-    @Override
-    public void request(long n) {
-        if (get() == Long.MAX_VALUE) {
-            return;
-        }
-        long _c;
-        if (n == Long.MAX_VALUE) {
-            _c = getAndSet(Long.MAX_VALUE);
-        } else {
-            _c = BackpressureUtils.getAndAddRequest(this, n);
-        }
-        if (!emittingStarted) {
-            // we haven't started yet, so record what was requested and return
-            return;
-        }
-        emit(_c);
-    }
-
-    void emit(long previousRequested) {
-        if (get() == Long.MAX_VALUE) {
-            // fast-path without backpressure
-            if (previousRequested == 0) {
-                try {
-                    for (Object value : deque) {
-                        if (subscriber.isUnsubscribed())
-                            return;
-                        notification.accept(subscriber, value);
-                    }
-                } catch (Throwable e) {
-                    Exceptions.throwOrReport(e, subscriber);
-                } finally {
-                    deque.clear();
-                }
-            } else {
-                // backpressure path will handle Long.MAX_VALUE and emit the rest events.
-            }
-        } else {
-            // backpressure is requested
-            if (previousRequested == 0) {
-                while (true) {
-                        /*
-                         * This complicated logic is done to avoid touching the volatile `requested` value
-                         * during the loop itself. If it is touched during the loop the performance is impacted significantly.
-                         */
-                    long numToEmit = get();
-                    int emitted = 0;
-                    Object o;
-                    while (--numToEmit >= 0 && (o = deque.poll()) != null) {
-                        if (subscriber.isUnsubscribed()) {
-                            return;
-                        }
-                        if (notification.accept(subscriber, o)) {
-                            // terminal event
-                            return;
-                        } else {
-                            emitted++;
-                        }
-                    }
-                    for (; ; ) {
-                        long oldRequested = get();
-                        long newRequested = oldRequested - emitted;
-                        if (oldRequested == Long.MAX_VALUE) {
-                            // became unbounded during the loop
-                            // continue the outer loop to emit the rest events.
-                            break;
-                        }
-                        if (compareAndSet(oldRequested, newRequested)) {
-                            if (newRequested == 0) {
-                                // we're done emitting the number requested so return
-                                return;
-                            }
-                            break;
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
diff --git a/src/test/java/rx/internal/operators/OperatorTakeLastTest.java b/src/test/java/rx/internal/operators/OperatorTakeLastTest.java
index c3297db0a0..154b3067b0 100644
--- a/src/test/java/rx/internal/operators/OperatorTakeLastTest.java
+++ b/src/test/java/rx/internal/operators/OperatorTakeLastTest.java
@@ -17,28 +17,24 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.mockito.Matchers.any;
-import static org.mockito.Mockito.inOrder;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import org.junit.Test;
+import static org.mockito.Mockito.*;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.*;
+
+import org.junit.*;
 import org.mockito.InOrder;
 
 import rx.Observable;
 import rx.Observer;
+import rx.Scheduler.Worker;
 import rx.Subscriber;
-import rx.functions.Func1;
-import rx.internal.util.RxRingBuffer;
-import rx.internal.util.UtilityFunctions;
+import rx.functions.*;
+import rx.internal.util.*;
 import rx.observers.TestSubscriber;
 import rx.schedulers.Schedulers;
+import rx.subjects.PublishSubject;
 
 public class OperatorTakeLastTest {
 
@@ -323,4 +319,76 @@ public void onNext(Integer t) {
             }});
         assertEquals(50, list.size());
     }
+    
+    @Test(timeout = 30000) // original could get into an infinite loop
+    public void completionRequestRace() {
+        Worker w = Schedulers.computation().createWorker();
+        try {
+            final int n = 1000;
+            for (int i = 0; i < 25000; i++) {
+                if (i % 1000 == 0) {
+                    System.out.println("completionRequestRace >> " + i);
+                }
+                PublishSubject ps = PublishSubject.create();
+                final TestSubscriber ts = new TestSubscriber(0);
+                
+                ps.takeLast(n).subscribe(ts);
+                
+                for (int j = 0; j < n; j++) {
+                    ps.onNext(j);
+                }
+
+                final AtomicBoolean go = new AtomicBoolean();
+                
+                w.schedule(new Action0() {
+                    @Override
+                    public void call() {
+                        while (!go.get());
+                        ts.requestMore(n + 1);
+                    }
+                });
+                
+                go.set(true);
+                ps.onCompleted();
+                
+                ts.awaitTerminalEvent(1, TimeUnit.SECONDS);
+                
+                ts.assertValueCount(n);
+                ts.assertNoErrors();
+                ts.assertCompleted();
+                
+                List list = ts.getOnNextEvents();
+                for (int j = 0; j < n; j++) {
+                    Assert.assertEquals(j, list.get(j).intValue());
+                }
+            }
+        } finally {
+            w.unsubscribe();
+        }
+    }
+
+    @Test
+    public void nullElements() {
+        TestSubscriber ts = new TestSubscriber(0);
+        
+        Observable.from(new Integer[] { 1, null, 2}).takeLast(4)
+        .subscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+        ts.requestMore(1);
+        
+        ts.assertValue(1);
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+        ts.requestMore(2);
+        
+        ts.assertValues(1, null, 2);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
+
 }
diff --git a/src/test/java/rx/internal/operators/OperatorTakeLastTimedTest.java b/src/test/java/rx/internal/operators/OperatorTakeLastTimedTest.java
index 800a2cd673..c227339702 100644
--- a/src/test/java/rx/internal/operators/OperatorTakeLastTimedTest.java
+++ b/src/test/java/rx/internal/operators/OperatorTakeLastTimedTest.java
@@ -22,15 +22,20 @@
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 
+import java.util.List;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 
-import org.junit.Test;
+import org.junit.*;
 import org.mockito.InOrder;
 
 import rx.Observable;
 import rx.Observer;
+import rx.Scheduler.Worker;
 import rx.exceptions.TestException;
-import rx.schedulers.TestScheduler;
+import rx.functions.Action0;
+import rx.observers.TestSubscriber;
+import rx.schedulers.*;
 import rx.subjects.PublishSubject;
 
 public class OperatorTakeLastTimedTest {
@@ -208,4 +213,75 @@ public void takeLastTimedWithZeroCapacity() {
         verify(o, never()).onNext(any());
         verify(o, never()).onError(any(Throwable.class));
     }
+
+    @Test(timeout = 30000) // original could get into an infinite loop
+    public void completionRequestRace() {
+        Worker w = Schedulers.computation().createWorker();
+        try {
+            final int n = 1000;
+            for (int i = 0; i < 25000; i++) {
+                if (i % 1000 == 0) {
+                    System.out.println("completionRequestRace >> " + i);
+                }
+                PublishSubject ps = PublishSubject.create();
+                final TestSubscriber ts = new TestSubscriber(0);
+                
+                ps.takeLast(n, 1, TimeUnit.DAYS).subscribe(ts);
+                
+                for (int j = 0; j < n; j++) {
+                    ps.onNext(j);
+                }
+
+                final AtomicBoolean go = new AtomicBoolean();
+                
+                w.schedule(new Action0() {
+                    @Override
+                    public void call() {
+                        while (!go.get());
+                        ts.requestMore(n + 1);
+                    }
+                });
+                
+                go.set(true);
+                ps.onCompleted();
+                
+                ts.awaitTerminalEvent(1, TimeUnit.SECONDS);
+                
+                ts.assertValueCount(n);
+                ts.assertNoErrors();
+                ts.assertCompleted();
+                
+                List list = ts.getOnNextEvents();
+                for (int j = 0; j < n; j++) {
+                    Assert.assertEquals(j, list.get(j).intValue());
+                }
+            }
+        } finally {
+            w.unsubscribe();
+        }
+    }
+    
+    @Test
+    public void nullElements() {
+        TestSubscriber ts = new TestSubscriber(0);
+        
+        Observable.from(new Integer[] { 1, null, 2}).takeLast(4, 1, TimeUnit.DAYS)
+        .subscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+        ts.requestMore(1);
+        
+        ts.assertValue(1);
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+        ts.requestMore(2);
+        
+        ts.assertValues(1, null, 2);
+        ts.assertCompleted();
+        ts.assertNoErrors();
+    }
 }

From b126c6ce7d045f6b7499f7a51905434f513c6fda Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Fri, 8 Apr 2016 23:45:03 +0200
Subject: [PATCH 020/294] 1.x: fix delaySubscription(Observable) unsubscription
 before triggered (#3845)

---
 .../OnSubscribeDelaySubscriptionOther.java    |  9 ++-
 ...OnSubscribeDelaySubscriptionOtherTest.java | 67 ++++++++++++++++++-
 .../internal/operators/OperatorDelayTest.java | 51 ++++++++++++--
 3 files changed, 118 insertions(+), 9 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OnSubscribeDelaySubscriptionOther.java b/src/main/java/rx/internal/operators/OnSubscribeDelaySubscriptionOther.java
index 2a8b7e1601..dc3146d7e6 100644
--- a/src/main/java/rx/internal/operators/OnSubscribeDelaySubscriptionOther.java
+++ b/src/main/java/rx/internal/operators/OnSubscribeDelaySubscriptionOther.java
@@ -20,7 +20,7 @@
 import rx.Observable.OnSubscribe;
 import rx.observers.Subscribers;
 import rx.plugins.*;
-import rx.subscriptions.SerialSubscription;
+import rx.subscriptions.*;
 
 /**
  * Delays the subscription to the main source until the other
@@ -39,9 +39,12 @@ public OnSubscribeDelaySubscriptionOther(Observable main, Observabl
     
     @Override
     public void call(Subscriber t) {
+        final SerialSubscription serial = new SerialSubscription();
+        
+        t.add(serial);
+        
         final Subscriber child = Subscribers.wrap(t);
         
-        final SerialSubscription serial = new SerialSubscription();
         
         Subscriber otherSubscriber = new Subscriber() {
             boolean done;
@@ -66,7 +69,7 @@ public void onCompleted() {
                     return;
                 }
                 done = true;
-                serial.set(child);
+                serial.set(Subscriptions.unsubscribed());
                 
                 main.unsafeSubscribe(child);
             }
diff --git a/src/test/java/rx/internal/operators/OnSubscribeDelaySubscriptionOtherTest.java b/src/test/java/rx/internal/operators/OnSubscribeDelaySubscriptionOtherTest.java
index e157a788e5..b44b720b41 100644
--- a/src/test/java/rx/internal/operators/OnSubscribeDelaySubscriptionOtherTest.java
+++ b/src/test/java/rx/internal/operators/OnSubscribeDelaySubscriptionOtherTest.java
@@ -16,7 +16,7 @@
 
 package rx.internal.operators;
 
-import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.*;
 
 import org.junit.*;
 
@@ -243,4 +243,69 @@ public void call() {
         ts.assertNoErrors();
         ts.assertCompleted();
     }
+    
+    @Test
+    public void unsubscriptionPropagatesBeforeSubscribe() {
+        PublishSubject source = PublishSubject.create();
+        PublishSubject other = PublishSubject.create();
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        source.delaySubscription(other).subscribe(ts);
+        
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+        Assert.assertTrue("other not subscribed?", other.hasObservers());
+        
+        ts.unsubscribe();
+        
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+        Assert.assertFalse("other still subscribed?", other.hasObservers());
+    }
+
+    @Test
+    public void unsubscriptionPropagatesAfterSubscribe() {
+        PublishSubject source = PublishSubject.create();
+        PublishSubject other = PublishSubject.create();
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        source.delaySubscription(other).subscribe(ts);
+        
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+        Assert.assertTrue("other not subscribed?", other.hasObservers());
+        
+        other.onCompleted();
+        
+        Assert.assertTrue("source not subscribed?", source.hasObservers());
+        Assert.assertFalse("other still subscribed?", other.hasObservers());
+        
+        ts.unsubscribe();
+        
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+        Assert.assertFalse("other still subscribed?", other.hasObservers());
+    }
+
+    @Test
+    public void delayAndTakeUntilNeverSubscribeToSource() {
+        PublishSubject delayUntil = PublishSubject.create();
+        PublishSubject interrupt = PublishSubject.create();
+        final AtomicBoolean subscribed = new AtomicBoolean(false);
+
+        Observable.just(1)
+        .doOnSubscribe(new Action0() {
+            @Override
+            public void call() {
+                subscribed.set(true);
+            }
+        })
+        .delaySubscription(delayUntil)
+        .takeUntil(interrupt)
+        .subscribe();
+
+        interrupt.onNext(9000);
+        delayUntil.onNext(1);
+
+        Assert.assertFalse(subscribed.get());
+    }
+
 }
diff --git a/src/test/java/rx/internal/operators/OperatorDelayTest.java b/src/test/java/rx/internal/operators/OperatorDelayTest.java
index e4db021eaf..315248a5db 100644
--- a/src/test/java/rx/internal/operators/OperatorDelayTest.java
+++ b/src/test/java/rx/internal/operators/OperatorDelayTest.java
@@ -30,9 +30,9 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.*;
 import org.mockito.InOrder;
 import org.mockito.Mock;
 
@@ -41,9 +41,7 @@
 import rx.Observer;
 import rx.Subscription;
 import rx.exceptions.TestException;
-import rx.functions.Action1;
-import rx.functions.Func0;
-import rx.functions.Func1;
+import rx.functions.*;
 import rx.internal.util.RxRingBuffer;
 import rx.observers.TestObserver;
 import rx.observers.TestSubscriber;
@@ -821,4 +819,47 @@ public void testErrorRunsBeforeOnNext() {
         ts.assertError(TestException.class);
         ts.assertNotCompleted();
     }
+
+    @Test
+    public void delaySubscriptionCancelBeforeTime() {
+        PublishSubject source = PublishSubject.create();
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        source.delaySubscription(100, TimeUnit.MILLISECONDS, scheduler).subscribe(ts);
+        
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+        
+        ts.unsubscribe();
+
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+
+        scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
+
+        Assert.assertFalse("source subscribed?", source.hasObservers());
+    }
+
+    @Test
+    public void delayAndTakeUntilNeverSubscribeToSource() {
+        PublishSubject interrupt = PublishSubject.create();
+        final AtomicBoolean subscribed = new AtomicBoolean(false);
+        TestScheduler testScheduler = new TestScheduler();
+
+        Observable.just(1)
+        .doOnSubscribe(new Action0() {
+            @Override
+            public void call() {
+                subscribed.set(true);
+            }
+        })
+        .delaySubscription(1, TimeUnit.SECONDS, testScheduler)
+        .takeUntil(interrupt)
+        .subscribe();
+
+        interrupt.onNext(9000);
+        testScheduler.advanceTimeBy(1, TimeUnit.SECONDS);
+
+        Assert.assertFalse(subscribed.get());
+    }
+
 }

From 6abde0cc99035f079976ead0fc8f812e76f13edd Mon Sep 17 00:00:00 2001
From: akarnokd 
Date: Fri, 8 Apr 2016 23:56:43 +0200
Subject: [PATCH 021/294] 1.x: Release 1.1.3 CHANGES.md update

---
 CHANGES.md | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/CHANGES.md b/CHANGES.md
index 1d6ec229ea..39da0ad41b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,43 @@
 # RxJava Releases #
 
+### Version 1.1.3 - April 8, 2016 ([Maven](http://search.maven.org/#artifactdetails%7Cio.reactivex%7Crxjava%7C1.1.3%7C))
+
+#### API enhancements
+
+  - [Pull 3780](https://github.com/ReactiveX/RxJava/pull/3780): `SyncOnSubscribe` has been promoted to `@Beta` API.
+  - [Pull 3799](https://github.com/ReactiveX/RxJava/pull/3799): Added `Completable.andThen(Single)` operator
+  - [Pull 3777](https://github.com/ReactiveX/RxJava/pull/3777): Added `observeOn` overload to configure the prefetch/buffer size
+  - [Pull 3790](https://github.com/ReactiveX/RxJava/pull/3790): Make `Single.lift` public and `@Experimental`
+  - [Pull 3818](https://github.com/ReactiveX/RxJava/pull/3818): `fromCallable` promotion to `@Beta` 
+  - [Pull 3842](https://github.com/ReactiveX/RxJava/pull/3842): improve `ExecutorScheduler` worker unsubscription
+
+#### API deprecations
+
+  - [Pull 3762](https://github.com/ReactiveX/RxJava/pull/3762): Deprecate `CompositeException` constructor with message prefix
+
+#### General enhancements
+
+  - [Pull 3828](https://github.com/ReactiveX/RxJava/pull/3828): `AsyncSubject` now supports backpressure
+  - [Pull 3829](https://github.com/ReactiveX/RxJava/pull/3829): Added `rx.unsafe-disable` system property to disable use of `sun.misc.Unsafe` even if it is available
+  - [Pull 3757](https://github.com/ReactiveX/RxJava/pull/3757): **Warning: behavior change!** Operator `sample` emits last sampled value before termination
+
+#### Performance enhancements
+
+  - [Pull 3795](https://github.com/ReactiveX/RxJava/pull/3795): `observeOn` now replenishes with constant rate
+
+#### Bugfixes
+
+  - [Pull 3809](https://github.com/ReactiveX/RxJava/pull/3809): fix `merge`/`flatMap` crash when the inner source was `just(null)`
+  - [Pull 3789](https://github.com/ReactiveX/RxJava/pull/3789): Prevent `Single.zip()` of zero `Single`s
+  - [Pull 3787](https://github.com/ReactiveX/RxJava/pull/3787): fix `groupBy` delaying group completion till all groups were emitted
+  - [Pull 3823](https://github.com/ReactiveX/RxJava/pull/3823): fix `DoAfterTerminate` handle if action throws
+  - [Pull 3822](https://github.com/ReactiveX/RxJava/pull/3822): make defensive copy of the properties in `RxJavaPlugins`
+  - [Pull 3836](https://github.com/ReactiveX/RxJava/pull/3836): fix `switchMap`/`switchOnNext` producer retention and backpressure
+  - [Pull 3840](https://github.com/ReactiveX/RxJava/pull/3840): fix `concatMap` scalar/empty source behavior
+  - [Pull 3839](https://github.com/ReactiveX/RxJava/pull/3839): fix `takeLast()` backpressure
+  - [Pull 3845](https://github.com/ReactiveX/RxJava/pull/3845): fix delaySubscription(Observable) unsubscription before triggered
+
+
 ### Version 1.1.2 - March 18, 2016 ([Maven](http://search.maven.org/#artifactdetails%7Cio.reactivex%7Crxjava%7C1.1.2%7C))
 
 #### API Enhancements

From 3e148a8832c18b0ac3297da4620d2d8c8a78da40 Mon Sep 17 00:00:00 2001
From: Jake Wharton 
Date: Sun, 10 Apr 2016 17:52:59 -0400
Subject: [PATCH 022/294] Remove unused local.

---
 src/main/java/rx/subjects/ReplaySubject.java | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/main/java/rx/subjects/ReplaySubject.java b/src/main/java/rx/subjects/ReplaySubject.java
index db8490f731..f1b693dc9a 100644
--- a/src/main/java/rx/subjects/ReplaySubject.java
+++ b/src/main/java/rx/subjects/ReplaySubject.java
@@ -717,8 +717,7 @@ public boolean isEmpty() {
         @SuppressWarnings("unchecked")
         public T[] toArray(T[] a) {
             List list = new ArrayList();
-            NodeList.Node l = head();
-            NodeList.Node next = l.next;
+            NodeList.Node next = head().next;
             while (next != null) {
                 Object o = leaveTransform.call(next.value);
 
@@ -727,7 +726,6 @@ public T[] toArray(T[] a) {
                 } else {
                     list.add((T)o);
                 }
-                l = next;
                 next = next.next;
             }
             return list.toArray(a);

From d799ecac4cb496303f774b1864882dbcabbf7ec7 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Thu, 14 Apr 2016 19:50:26 +0200
Subject: [PATCH 023/294] 1.x: deanonymize Observable inner classes (#3848)

* 1.x: deanonymize Observable inner classes

* Further simplification of types

* Fix indentation, rename Lambda to Action
---
 src/main/java/rx/Observable.java              | 520 +++---------------
 src/main/java/rx/functions/Actions.java       |  23 +
 .../operators/EmptyObservableHolder.java      |  46 ++
 .../operators/NeverObservableHolder.java      |  45 ++
 .../internal/operators/OnSubscribeLift.java   |  65 +++
 .../internal/operators/OnSubscribeThrow.java  |  46 ++
 .../util/ActionNotificationObserver.java      |  48 ++
 .../rx/internal/util/ActionSubscriber.java    |  51 ++
 .../util/InternalObservableUtils.java         | 379 +++++++++++++
 .../rx/internal/util/ObserverSubscriber.java  |  46 ++
 10 files changed, 825 insertions(+), 444 deletions(-)
 create mode 100644 src/main/java/rx/internal/operators/EmptyObservableHolder.java
 create mode 100644 src/main/java/rx/internal/operators/NeverObservableHolder.java
 create mode 100644 src/main/java/rx/internal/operators/OnSubscribeLift.java
 create mode 100644 src/main/java/rx/internal/operators/OnSubscribeThrow.java
 create mode 100644 src/main/java/rx/internal/util/ActionNotificationObserver.java
 create mode 100644 src/main/java/rx/internal/util/ActionSubscriber.java
 create mode 100644 src/main/java/rx/internal/util/InternalObservableUtils.java
 create mode 100644 src/main/java/rx/internal/util/ObserverSubscriber.java

diff --git a/src/main/java/rx/Observable.java b/src/main/java/rx/Observable.java
index bd96ee4556..92e9ea56fa 100644
--- a/src/main/java/rx/Observable.java
+++ b/src/main/java/rx/Observable.java
@@ -19,7 +19,6 @@
 import rx.exceptions.*;
 import rx.functions.*;
 import rx.internal.operators.*;
-import rx.internal.producers.SingleProducer;
 import rx.internal.util.*;
 import rx.observables.*;
 import rx.observers.SafeSubscriber;
@@ -191,11 +190,23 @@ public interface Operator extends Func1, Subscriber<
      */
     @Experimental
     public  R extend(Func1, ? extends R> conversion) {
-        return conversion.call(new OnSubscribe() {
-            @Override
-            public void call(Subscriber subscriber) {
-                subscriber.add(Observable.subscribe(subscriber, Observable.this));
-            }});
+        return conversion.call(new OnSubscribeExtend(this));
+    }
+    
+    /**
+     * Transforms a OnSubscribe.call() into an Observable.subscribe() call.
+     * 
Note: has to be in Observable because it calls the private subscribe() method 
+     * @param  the value type
+     */
+    static final class OnSubscribeExtend implements OnSubscribe {
+        final Observable parent;
+        OnSubscribeExtend(Observable parent) {
+            this.parent = parent;
+        }
+        @Override
+        public void call(Subscriber subscriber) {
+            subscriber.add(subscribe(subscriber, parent));
+        }
     }
     
     /**
@@ -222,30 +233,7 @@ public void call(Subscriber subscriber) {
      * @see RxJava wiki: Implementing Your Own Operators
      */
     public final  Observable lift(final Operator operator) {
-        return new Observable(new OnSubscribe() {
-            @Override
-            public void call(Subscriber o) {
-                try {
-                    Subscriber st = hook.onLift(operator).call(o);
-                    try {
-                        // new Subscriber created and being subscribed with so 'onStart' it
-                        st.onStart();
-                        onSubscribe.call(st);
-                    } catch (Throwable e) {
-                        // localized capture of errors rather than it skipping all operators 
-                        // and ending up in the try/catch of the subscribe method which then
-                        // prevents onErrorResumeNext and other similar approaches to error handling
-                        Exceptions.throwIfFatal(e);
-                        st.onError(e);
-                    }
-                } catch (Throwable e) {
-                    Exceptions.throwIfFatal(e);
-                    // if the lift function failed all we can do is pass the error to the final Subscriber
-                    // as we don't have the operator available to us
-                    o.onError(e);
-                }
-            }
-        });
+        return new Observable(new OnSubscribeLift(onSubscribe, operator));
     }
     
     /**
@@ -1253,16 +1241,6 @@ public static  Observable defer(Func0> observableFactory) {
         return create(new OnSubscribeDefer(observableFactory));
     }
 
-    /** Lazy initialized Holder for an empty observable which just emits onCompleted to any subscriber. */
-    private static final class EmptyHolder {
-        final static Observable INSTANCE = create(new OnSubscribe() {
-            @Override
-            public void call(Subscriber subscriber) {
-                subscriber.onCompleted();
-            }
-        });
-    }
-    
     /**
      * Returns an Observable that emits no items to the {@link Observer} and immediately invokes its
      * {@link Observer#onCompleted onCompleted} method.
@@ -1279,9 +1257,8 @@ public void call(Subscriber subscriber) {
      *         {@link Observer}'s {@link Observer#onCompleted() onCompleted} method
      * @see ReactiveX operators documentation: Empty
      */
-    @SuppressWarnings("unchecked")
     public static  Observable empty() {
-        return (Observable) EmptyHolder.INSTANCE;
+        return EmptyObservableHolder.instance();
     }
 
     /**
@@ -1303,7 +1280,7 @@ public static  Observable empty() {
      * @see ReactiveX operators documentation: Throw
      */
     public static  Observable error(Throwable exception) {
-        return new ThrowObservable(exception);
+        return create(new OnSubscribeThrow(exception));
     }
 
     /**
@@ -2740,7 +2717,7 @@ public final Observable> nest() {
      * @see ReactiveX operators documentation: Never
      */
     public static  Observable never() {
-        return NeverObservable.instance();
+        return NeverObservableHolder.instance();
     }
 
     /**
@@ -2821,17 +2798,9 @@ public static Observable range(int start, int count, Scheduler schedule
      * @see ReactiveX operators documentation: SequenceEqual
      */
     public static  Observable sequenceEqual(Observable first, Observable second) {
-        return sequenceEqual(first, second, new Func2() {
-            @Override
-            public final Boolean call(T first, T second) {
-                if (first == null) {
-                    return second == null;
-                }
-                return first.equals(second);
-            }
-        });
+        return sequenceEqual(first, second, InternalObservableUtils.OBJECT_EQUALS);
     }
-
+    
     /**
      * Returns an Observable that emits a Boolean value that indicates whether two Observable sequences are the
      * same by comparing the items emitted by each Observable pairwise based on the results of a specified
@@ -3146,16 +3115,9 @@ public static  Observable zip(Iterable> ws, FuncN<
      * @see ReactiveX operators documentation: Zip
      */
     public static  Observable zip(Observable> ws, final FuncN zipFunction) {
-        return ws.toList().map(new Func1>, Observable[]>() {
-
-            @Override
-            public Observable[] call(List> o) {
-                return o.toArray(new Observable[o.size()]);
-            }
-
-        }).lift(new OperatorZip(zipFunction));
+        return ws.toList().map(InternalObservableUtils.TO_ARRAY).lift(new OperatorZip(zipFunction));
     }
-
+    
     /**
      * Returns an Observable that emits the results of a specified combiner function applied to combinations of
      * two items emitted, in sequence, by two other Observables.
@@ -4016,15 +3978,7 @@ public final  Observable cast(final Class klass) {
      * @see ReactiveX operators documentation: Reduce
      */
     public final  Observable collect(Func0 stateFactory, final Action2 collector) {
-        Func2 accumulator = new Func2() {
-
-            @Override
-            public final R call(R state, T value) {
-                collector.call(state, value);
-                return state;
-            }
-
-        };
+        Func2 accumulator = InternalObservableUtils.createCollectorCaller(collector);
         
         /*
          * Discussion and confirmation of implementation at
@@ -4147,12 +4101,7 @@ public final Observable concatWith(Observable t1) {
      * @see ReactiveX operators documentation: Contains
      */
     public final Observable contains(final Object element) {
-        return exists(new Func1() {
-            @Override
-            public final Boolean call(T t1) {
-                return element == null ? t1 == null : element.equals(t1);
-            }
-        });
+        return exists(InternalObservableUtils.equalsWith(element));
     }
 
     /**
@@ -4172,16 +4121,7 @@ public final Boolean call(T t1) {
      * @see #countLong()
      */
     public final Observable count() {
-        return reduce(0, CountHolder.INSTANCE);
-    }
-    
-    private static final class CountHolder {
-        static final Func2 INSTANCE = new Func2() {
-            @Override
-            public final Integer call(Integer count, Object o) {
-                return count + 1;
-            }
-        };
+        return reduce(0, InternalObservableUtils.COUNTER);
     }
     
     /**
@@ -4203,18 +4143,9 @@ public final Integer call(Integer count, Object o) {
      * @see #count()
      */
     public final Observable countLong() {
-        return reduce(0L, CountLongHolder.INSTANCE);
+        return reduce(0L, InternalObservableUtils.LONG_COUNTER);
     }
 
-    private static final class CountLongHolder {
-        static final Func2 INSTANCE = new Func2() {
-            @Override
-            public final Long call(Long count, Object o) {
-                return count + 1;
-            }
-        };
-    }
-    
     /**
      * Returns an Observable that mirrors the source Observable, except that it drops items emitted by the
      * source Observable that are followed by another item within a computed debounce duration.
@@ -4340,12 +4271,7 @@ public final Observable debounce(long timeout, TimeUnit unit, Scheduler sched
      */
     public final Observable defaultIfEmpty(final T defaultValue) {
         //if empty switch to an observable that emits defaultValue and supports backpressure
-        return switchIfEmpty(Observable.create(new OnSubscribe() {
-
-            @Override
-            public void call(Subscriber subscriber) {
-                subscriber.setProducer(new SingleProducer(subscriber, defaultValue));
-            }}));
+        return switchIfEmpty(just(defaultValue));
     }
 
     /**
@@ -4676,21 +4602,9 @@ public final  Observable distinctUntilChanged(Func1ReactiveX operators documentation: Do
      */
     public final Observable doOnCompleted(final Action0 onCompleted) {
-        Observer observer = new Observer() {
-            @Override
-            public final void onCompleted() {
-                onCompleted.call();
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-            }
-
-            @Override
-            public final void onNext(T args) {
-            }
-
-        };
+        Action1 onNext = Actions.empty();
+        Action1 onError = Actions.empty();
+        Observer observer = new ActionSubscriber(onNext, onError, onCompleted);
 
         return lift(new OperatorDoOnEach(observer));
     }
@@ -4710,23 +4624,7 @@ public final void onNext(T args) {
      * @see ReactiveX operators documentation: Do
      */
     public final Observable doOnEach(final Action1> onNotification) {
-        Observer observer = new Observer() {
-            @Override
-            public final void onCompleted() {
-                onNotification.call(Notification.createOnCompleted());
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                onNotification.call(Notification.createOnError(e));
-            }
-
-            @Override
-            public final void onNext(T v) {
-                onNotification.call(Notification.createOnNext(v));
-            }
-
-        };
+        Observer observer = new ActionNotificationObserver(onNotification);
 
         return lift(new OperatorDoOnEach(observer));
     }
@@ -4772,21 +4670,9 @@ public final Observable doOnEach(Observer observer) {
      * @see ReactiveX operators documentation: Do
      */
     public final Observable doOnError(final Action1 onError) {
-        Observer observer = new Observer() {
-            @Override
-            public final void onCompleted() {
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                onError.call(e);
-            }
-
-            @Override
-            public final void onNext(T args) {
-            }
-
-        };
+        Action1 onNext = Actions.empty();
+        Action0 onCompleted = Actions.empty();
+        Observer observer = new ActionSubscriber(onNext, onError, onCompleted);
 
         return lift(new OperatorDoOnEach(observer));
     }
@@ -4806,21 +4692,9 @@ public final void onNext(T args) {
      * @see ReactiveX operators documentation: Do
      */
     public final Observable doOnNext(final Action1 onNext) {
-        Observer observer = new Observer() {
-            @Override
-            public final void onCompleted() {
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-            }
-
-            @Override
-            public final void onNext(T args) {
-                onNext.call(args);
-            }
-
-        };
+        Action1 onError = Actions.empty();
+        Action0 onCompleted = Actions.empty();
+        Observer observer = new ActionSubscriber(onNext, onError, onCompleted);
 
         return lift(new OperatorDoOnEach(observer));
     }
@@ -4891,22 +4765,10 @@ public final Observable doOnSubscribe(final Action0 subscribe) {
      * @see #finallyDo(Action0)
      */
     public final Observable doOnTerminate(final Action0 onTerminate) {
-        Observer observer = new Observer() {
-            @Override
-            public final void onCompleted() {
-                onTerminate.call();
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                onTerminate.call();
-            }
-
-            @Override
-            public final void onNext(T args) {
-            }
-
-        };
+        Action1 onNext = Actions.empty();
+        Action1 onError = Actions.toAction1(onTerminate);
+        
+        Observer observer = new ActionSubscriber(onNext, onError, onTerminate);
 
         return lift(new OperatorDoOnEach(observer));
     }
@@ -6111,15 +5973,10 @@ public final Observable ignoreElements() {
      * @return an Observable that emits a Boolean
      * @see ReactiveX operators documentation: Contains
      */
-    @SuppressWarnings("unchecked")
     public final Observable isEmpty() {
-        return lift((OperatorAny) HolderAnyForEmpty.INSTANCE);
+        return lift(InternalObservableUtils.IS_EMPTY);
     }
     
-    private static class HolderAnyForEmpty {
-        static final OperatorAny INSTANCE = new OperatorAny(UtilityFunctions.alwaysTrue(), true);
-    }
-
     /**
      * Correlates the items emitted by two Observables based on overlapping durations.
      * 

@@ -6459,12 +6316,7 @@ public final Observable observeOn(Scheduler scheduler, boolean delayError, in
      * @see ReactiveX operators documentation: Filter
      */
     public final  Observable ofType(final Class klass) {
-        return filter(new Func1() {
-            @Override
-            public final Boolean call(T t) {
-                return klass.isInstance(t);
-            }
-        }).cast(klass);
+        return filter(InternalObservableUtils.isInstanceOf(klass)).cast(klass);
     }
 
     /**
@@ -6976,18 +6828,7 @@ public final Observable repeat(final long count, Scheduler scheduler) {
      * @see ReactiveX operators documentation: Repeat
      */
     public final Observable repeatWhen(final Func1, ? extends Observable> notificationHandler, Scheduler scheduler) {
-        Func1>, ? extends Observable> dematerializedNotificationHandler = new Func1>, Observable>() {
-            @Override
-            public Observable call(Observable> notifications) {
-                return notificationHandler.call(notifications.map(new Func1, Void>() {
-                    @Override
-                    public Void call(Notification notification) {
-                        return null;
-                    }
-                }));
-            }
-        };
-        return OnSubscribeRedo.repeat(this, dematerializedNotificationHandler, scheduler);
+        return OnSubscribeRedo.repeat(this, InternalObservableUtils.createRepeatDematerializer(notificationHandler), scheduler);
     }
 
     /**
@@ -7010,18 +6851,7 @@ public Void call(Notification notification) {
      * @see ReactiveX operators documentation: Repeat
      */
     public final Observable repeatWhen(final Func1, ? extends Observable> notificationHandler) {
-        Func1>, ? extends Observable> dematerializedNotificationHandler = new Func1>, Observable>() {
-            @Override
-            public Observable call(Observable> notifications) {
-                return notificationHandler.call(notifications.map(new Func1, Void>() {
-                    @Override
-                    public Void call(Notification notification) {
-                        return null;
-                    }
-                }));
-            }
-        };
-        return OnSubscribeRedo.repeat(this, dematerializedNotificationHandler);
+        return OnSubscribeRedo.repeat(this, InternalObservableUtils.createRepeatDematerializer(notificationHandler));
     }
 
     /**
@@ -7072,12 +6902,7 @@ public final ConnectableObservable replay() {
      * @see ReactiveX operators documentation: Replay
      */
     public final  Observable replay(Func1, ? extends Observable> selector) {
-        return OperatorReplay.multicastSelector(new Func0>() {
-            @Override
-            public ConnectableObservable call() {
-                return Observable.this.replay();
-            }
-        }, selector);
+        return OperatorReplay.multicastSelector(InternalObservableUtils.createReplaySupplier(this), selector);
     }
 
     /**
@@ -7108,12 +6933,7 @@ public ConnectableObservable call() {
      * @see ReactiveX operators documentation: Replay
      */
     public final  Observable replay(Func1, ? extends Observable> selector, final int bufferSize) {
-        return OperatorReplay.multicastSelector(new Func0>() {
-            @Override
-            public ConnectableObservable call() {
-                return Observable.this.replay(bufferSize);
-            }
-        }, selector);
+        return OperatorReplay.multicastSelector(InternalObservableUtils.createReplaySupplier(this, bufferSize), selector);
     }
 
     /**
@@ -7192,12 +7012,8 @@ public final  Observable replay(Func1, ? extends Obs
         if (bufferSize < 0) {
             throw new IllegalArgumentException("bufferSize < 0");
         }
-        return OperatorReplay.multicastSelector(new Func0>() {
-            @Override
-            public ConnectableObservable call() {
-                return Observable.this.replay(bufferSize, time, unit, scheduler);
-            }
-        }, selector);
+        return OperatorReplay.multicastSelector(
+                InternalObservableUtils.createReplaySupplier(this, bufferSize, time, unit, scheduler), selector);
     }
 
     /**
@@ -7230,17 +7046,8 @@ public ConnectableObservable call() {
      * @see ReactiveX operators documentation: Replay
      */
     public final  Observable replay(final Func1, ? extends Observable> selector, final int bufferSize, final Scheduler scheduler) {
-        return OperatorReplay.multicastSelector(new Func0>() {
-            @Override
-            public ConnectableObservable call() {
-                return Observable.this.replay(bufferSize);
-            }
-        }, new Func1, Observable>() {
-            @Override
-            public Observable call(Observable t) {
-                return selector.call(t).observeOn(scheduler);
-            }
-        });
+        return OperatorReplay.multicastSelector(InternalObservableUtils.createReplaySupplier(this, bufferSize), 
+                InternalObservableUtils.createReplaySelectorAndObserveOn(selector, scheduler));
     }
 
     /**
@@ -7308,12 +7115,8 @@ public final  Observable replay(Func1, ? extends Obs
      * @see ReactiveX operators documentation: Replay
      */
     public final  Observable replay(Func1, ? extends Observable> selector, final long time, final TimeUnit unit, final Scheduler scheduler) {
-        return OperatorReplay.multicastSelector(new Func0>() {
-            @Override
-            public ConnectableObservable call() {
-                return Observable.this.replay(time, unit, scheduler);
-            }
-        }, selector);
+        return OperatorReplay.multicastSelector(
+                InternalObservableUtils.createReplaySupplier(this, time, unit, scheduler), selector);
     }
 
     /**
@@ -7343,17 +7146,9 @@ public ConnectableObservable call() {
      * @see ReactiveX operators documentation: Replay
      */
     public final  Observable replay(final Func1, ? extends Observable> selector, final Scheduler scheduler) {
-        return OperatorReplay.multicastSelector(new Func0>() {
-            @Override
-            public ConnectableObservable call() {
-                return Observable.this.replay();
-            }
-        }, new Func1, Observable>() {
-            @Override
-            public Observable call(Observable t) {
-                return selector.call(t).observeOn(scheduler);
-            }
-        });
+        return OperatorReplay.multicastSelector(
+                InternalObservableUtils.createReplaySupplier(this), 
+                InternalObservableUtils.createReplaySelectorAndObserveOn(selector, scheduler));
     }
 
     /**
@@ -7689,18 +7484,7 @@ public final Observable retry(Func2 predicate) {
      * @see ReactiveX operators documentation: Retry
      */
     public final Observable retryWhen(final Func1, ? extends Observable> notificationHandler) {
-        Func1>, ? extends Observable> dematerializedNotificationHandler = new Func1>, Observable>() {
-            @Override
-            public Observable call(Observable> notifications) {
-                return notificationHandler.call(notifications.map(new Func1, Throwable>() {
-                    @Override
-                    public Throwable call(Notification notification) {
-                        return notification.getThrowable();
-                    }
-                }));
-            }
-        };
-        return OnSubscribeRedo. retry(this, dematerializedNotificationHandler);
+        return OnSubscribeRedo.retry(this, InternalObservableUtils.createRetryDematerializer(notificationHandler));
     }
 
     /**
@@ -7727,18 +7511,7 @@ public Throwable call(Notification notification) {
      * @see ReactiveX operators documentation: Retry
      */
     public final Observable retryWhen(final Func1, ? extends Observable> notificationHandler, Scheduler scheduler) {
-        Func1>, ? extends Observable> dematerializedNotificationHandler = new Func1>, Observable>() {
-            @Override
-            public Observable call(Observable> notifications) {
-                return notificationHandler.call(notifications.map(new Func1, Throwable>() {
-                    @Override
-                    public Throwable call(Notification notification) {
-                        return notification.getThrowable();
-                    }
-                }));
-            }
-        };
-        return OnSubscribeRedo. retry(this, dematerializedNotificationHandler, scheduler);
+        return OnSubscribeRedo. retry(this, InternalObservableUtils.createRetryDematerializer(notificationHandler), scheduler);
     }
 
     /**
@@ -8512,24 +8285,10 @@ public final Observable startWith(T t1, T t2, T t3, T t4, T t5, T t6, T t7, T
      * @see ReactiveX operators documentation: Subscribe
      */
     public final Subscription subscribe() {
-        return subscribe(new Subscriber() {
-
-            @Override
-            public final void onCompleted() {
-                // do nothing
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                throw new OnErrorNotImplementedException(e);
-            }
-
-            @Override
-            public final void onNext(T args) {
-                // do nothing
-            }
-
-        });
+        Action1 onNext = Actions.empty();
+        Action1 onError = InternalObservableUtils.ERROR_NOT_IMPLEMENTED;
+        Action0 onCompleted = Actions.empty();
+        return subscribe(new ActionSubscriber(onNext, onError, onCompleted));
     }
 
     /**
@@ -8554,24 +8313,9 @@ public final Subscription subscribe(final Action1 onNext) {
             throw new IllegalArgumentException("onNext can not be null");
         }
 
-        return subscribe(new Subscriber() {
-
-            @Override
-            public final void onCompleted() {
-                // do nothing
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                throw new OnErrorNotImplementedException(e);
-            }
-
-            @Override
-            public final void onNext(T args) {
-                onNext.call(args);
-            }
-
-        });
+        Action1 onError = InternalObservableUtils.ERROR_NOT_IMPLEMENTED;
+        Action0 onCompleted = Actions.empty();
+        return subscribe(new ActionSubscriber(onNext, onError, onCompleted));
     }
 
     /**
@@ -8602,24 +8346,8 @@ public final Subscription subscribe(final Action1 onNext, final Actio
             throw new IllegalArgumentException("onError can not be null");
         }
 
-        return subscribe(new Subscriber() {
-
-            @Override
-            public final void onCompleted() {
-                // do nothing
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                onError.call(e);
-            }
-
-            @Override
-            public final void onNext(T args) {
-                onNext.call(args);
-            }
-
-        });
+        Action0 onCompleted = Actions.empty();
+        return subscribe(new ActionSubscriber(onNext, onError, onCompleted));
     }
 
     /**
@@ -8635,7 +8363,7 @@ public final void onNext(T args) {
      * @param onError
      *             the {@code Action1} you have designed to accept any error notification from the
      *             Observable
-     * @param onComplete
+     * @param onCompleted
      *             the {@code Action0} you have designed to accept a completion notification from the
      *             Observable
      * @return a {@link Subscription} reference with which the {@link Observer} can stop receiving items before
@@ -8646,35 +8374,18 @@ public final void onNext(T args) {
      *             if {@code onComplete} is null
      * @see ReactiveX operators documentation: Subscribe
      */
-    public final Subscription subscribe(final Action1 onNext, final Action1 onError, final Action0 onComplete) {
+    public final Subscription subscribe(final Action1 onNext, final Action1 onError, final Action0 onCompleted) {
         if (onNext == null) {
             throw new IllegalArgumentException("onNext can not be null");
         }
         if (onError == null) {
             throw new IllegalArgumentException("onError can not be null");
         }
-        if (onComplete == null) {
+        if (onCompleted == null) {
             throw new IllegalArgumentException("onComplete can not be null");
         }
 
-        return subscribe(new Subscriber() {
-
-            @Override
-            public final void onCompleted() {
-                onComplete.call();
-            }
-
-            @Override
-            public final void onError(Throwable e) {
-                onError.call(e);
-            }
-
-            @Override
-            public final void onNext(T args) {
-                onNext.call(args);
-            }
-
-        });
+        return subscribe(new ActionSubscriber(onNext, onError, onCompleted));
     }
 
     /**
@@ -8695,24 +8406,7 @@ public final Subscription subscribe(final Observer observer) {
         if (observer instanceof Subscriber) {
             return subscribe((Subscriber)observer);
         }
-        return subscribe(new Subscriber() {
-
-            @Override
-            public void onCompleted() {
-                observer.onCompleted();
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                observer.onError(e);
-            }
-
-            @Override
-            public void onNext(T t) {
-                observer.onNext(t);
-            }
-
-        });
+        return subscribe(new ObserverSubscriber(observer));
     }
 
     /**
@@ -8801,7 +8495,7 @@ public final Subscription subscribe(Subscriber subscriber) {
         return Observable.subscribe(subscriber, this);
     }
     
-    private static  Subscription subscribe(Subscriber subscriber, Observable observable) {
+    static  Subscription subscribe(Subscriber subscriber, Observable observable) {
      // validate and proceed
         if (subscriber == null) {
             throw new IllegalArgumentException("observer can not be null");
@@ -10601,66 +10295,4 @@ public final  Observable zipWith(Iterable other, Func2 Observable zipWith(Observable other, Func2 zipFunction) {
         return (Observable)zip(this, other, zipFunction);
     }
-
-    /**
-     * An Observable that never sends any information to an {@link Observer}.
-     * This Observable is useful primarily for testing purposes.
-     * 
-     * @param 
-     *            the type of item (not) emitted by the Observable
-     */
-    private static class NeverObservable extends Observable {
-        
-        private static class Holder {
-            static final NeverObservable INSTANCE = new NeverObservable();
-        }
-        
-        /**
-         * Returns a singleton instance of NeverObservable (cast to the generic type).
-         * 
-         * @return singleton instance of NeverObservable (cast to the generic type)
-         */
-        @SuppressWarnings("unchecked")
-        static  NeverObservable instance() {
-            return (NeverObservable) Holder.INSTANCE;
-        }
-        
-        NeverObservable() {
-            super(new OnSubscribe() {
-
-                @Override
-                public void call(Subscriber observer) {
-                    // do nothing
-                }
-
-            });
-        }
-    }
-
-    /**
-     * An Observable that invokes {@link Observer#onError onError} when the {@link Observer} subscribes to it.
-     * 
-     * @param 
-     *            the type of item (ostensibly) emitted by the Observable
-     */
-    private static class ThrowObservable extends Observable {
-
-        public ThrowObservable(final Throwable exception) {
-            super(new OnSubscribe() {
-
-                /**
-                 * Accepts an {@link Observer} and calls its {@link Observer#onError onError} method.
-                 * 
-                 * @param observer
-                 *            an {@link Observer} of this Observable
-                 */
-                @Override
-                public void call(Subscriber observer) {
-                    observer.onError(exception);
-                }
-
-            });
-        }
-    }
-
 }
diff --git a/src/main/java/rx/functions/Actions.java b/src/main/java/rx/functions/Actions.java
index ea18eaed91..bbf9d0b151 100644
--- a/src/main/java/rx/functions/Actions.java
+++ b/src/main/java/rx/functions/Actions.java
@@ -432,4 +432,27 @@ public R call(Object... args) {
             }
         };
     }
+    
+    /**
+     * Wraps an Action0 instance into an Action1 instance where the latter calls
+     * the former.
+     * @param action the action to call
+     * @return the new Action1 instance
+     */
+    public static  Action1 toAction1(Action0 action) {
+        return new Action1CallsAction0(action);
+    }
+    
+    static final class Action1CallsAction0 implements Action1 {
+        final Action0 action;
+        
+        public Action1CallsAction0(Action0 action) {
+            this.action = action;
+        }
+        
+        @Override
+        public void call(T t) {
+            action.call();
+        }
+    }
 }
diff --git a/src/main/java/rx/internal/operators/EmptyObservableHolder.java b/src/main/java/rx/internal/operators/EmptyObservableHolder.java
new file mode 100644
index 0000000000..20091ca211
--- /dev/null
+++ b/src/main/java/rx/internal/operators/EmptyObservableHolder.java
@@ -0,0 +1,46 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.internal.operators;
+
+import rx.*;
+import rx.Observable.OnSubscribe;
+
+/**
+ * Holds a singleton instance of an empty Observable which is stateless and completes
+ * the child subscriber immediately.
+ */
+public enum EmptyObservableHolder implements OnSubscribe {
+    INSTANCE
+    ;
+    
+    /**
+     * Returns a type-corrected singleton instance of the empty Observable.
+     * @return a type-corrected singleton instance of the empty Observable.
+     */
+    @SuppressWarnings("unchecked")
+    public static  Observable instance() {
+        return (Observable)EMPTY;
+    }
+    
+    /** The singleton instance. */
+    static final Observable EMPTY = Observable.create(INSTANCE);
+    
+    @Override
+    public void call(Subscriber child) {
+        child.onCompleted();
+    }
+}
diff --git a/src/main/java/rx/internal/operators/NeverObservableHolder.java b/src/main/java/rx/internal/operators/NeverObservableHolder.java
new file mode 100644
index 0000000000..451f31c67b
--- /dev/null
+++ b/src/main/java/rx/internal/operators/NeverObservableHolder.java
@@ -0,0 +1,45 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.internal.operators;
+
+import rx.*;
+import rx.Observable.OnSubscribe;
+
+/**
+ * Holds a singleton instance of a never Observable which is stateless doesn't
+ * call any of the Subscriber's methods.
+ */
+public enum NeverObservableHolder implements OnSubscribe {
+    INSTANCE
+    ;
+    
+    /**
+     * Returns a type-corrected singleton instance of the never Observable.
+     * @return a type-corrected singleton instance of the never Observable.
+     */
+    @SuppressWarnings("unchecked")
+    public static  Observable instance() {
+        return (Observable)NEVER;
+    }
+    
+    /** The singleton instance. */
+    static final Observable NEVER = Observable.create(INSTANCE);
+    
+    @Override
+    public void call(Subscriber child) {
+    }
+}
diff --git a/src/main/java/rx/internal/operators/OnSubscribeLift.java b/src/main/java/rx/internal/operators/OnSubscribeLift.java
new file mode 100644
index 0000000000..ba6210f38b
--- /dev/null
+++ b/src/main/java/rx/internal/operators/OnSubscribeLift.java
@@ -0,0 +1,65 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.internal.operators;
+
+import rx.Observable.*;
+import rx.Subscriber;
+import rx.exceptions.Exceptions;
+import rx.plugins.*;
+
+/**
+ * Transforms the downstream Subscriber into a Subscriber via an operator
+ * callback and calls the parent OnSubscribe.call() method with it.
+ * @param  the source value type
+ * @param  the result value type
+ */
+public final class OnSubscribeLift implements OnSubscribe {
+    
+    static final RxJavaObservableExecutionHook hook = RxJavaPlugins.getInstance().getObservableExecutionHook();
+
+    final OnSubscribe parent;
+
+    final Operator operator;
+
+    public OnSubscribeLift(OnSubscribe parent, Operator operator) {
+        this.parent = parent;
+        this.operator = operator;
+    }
+
+    @Override
+    public void call(Subscriber o) {
+        try {
+            Subscriber st = hook.onLift(operator).call(o);
+            try {
+                // new Subscriber created and being subscribed with so 'onStart' it
+                st.onStart();
+                parent.call(st);
+            } catch (Throwable e) {
+                // localized capture of errors rather than it skipping all operators 
+                // and ending up in the try/catch of the subscribe method which then
+                // prevents onErrorResumeNext and other similar approaches to error handling
+                Exceptions.throwIfFatal(e);
+                st.onError(e);
+            }
+        } catch (Throwable e) {
+            Exceptions.throwIfFatal(e);
+            // if the lift function failed all we can do is pass the error to the final Subscriber
+            // as we don't have the operator available to us
+            o.onError(e);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rx/internal/operators/OnSubscribeThrow.java b/src/main/java/rx/internal/operators/OnSubscribeThrow.java
new file mode 100644
index 0000000000..d39bba5939
--- /dev/null
+++ b/src/main/java/rx/internal/operators/OnSubscribeThrow.java
@@ -0,0 +1,46 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.internal.operators;
+
+import rx.*;
+import rx.Observable.OnSubscribe;
+
+/**
+ * An Observable that invokes {@link Observer#onError onError} when the {@link Observer} subscribes to it.
+ * 
+ * @param 
+ *            the type of item (ostensibly) emitted by the Observable
+ */
+public final class OnSubscribeThrow implements OnSubscribe {
+
+    private final Throwable exception;
+
+    public OnSubscribeThrow(Throwable exception) {
+        this.exception = exception;
+    }
+
+    /**
+     * Accepts an {@link Observer} and calls its {@link Observer#onError onError} method.
+     * 
+     * @param observer
+     *            an {@link Observer} of this Observable
+     */
+    @Override
+    public void call(Subscriber observer) {
+        observer.onError(exception);
+    }
+}
diff --git a/src/main/java/rx/internal/util/ActionNotificationObserver.java b/src/main/java/rx/internal/util/ActionNotificationObserver.java
new file mode 100644
index 0000000000..162d9371b4
--- /dev/null
+++ b/src/main/java/rx/internal/util/ActionNotificationObserver.java
@@ -0,0 +1,48 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package rx.internal.util;
+
+import rx.*;
+import rx.functions.*;
+
+/**
+ * An Observer that forwards the onXXX method calls to a notification callback
+ * by transforming each signal type into Notifications.
+ * @param  the value type
+ */
+public final class ActionNotificationObserver implements Observer {
+    
+    final Action1> onNotification;
+
+    public ActionNotificationObserver(Action1> onNotification) {
+        this.onNotification = onNotification;
+    }
+
+    @Override
+    public void onNext(T t) {
+        onNotification.call(Notification.createOnNext(t));
+    }
+
+    @Override
+    public void onError(Throwable e) {
+        onNotification.call(Notification.createOnError(e));
+    }
+
+    @Override
+    public void onCompleted() {
+        onNotification.call(Notification.createOnCompleted());
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rx/internal/util/ActionSubscriber.java b/src/main/java/rx/internal/util/ActionSubscriber.java
new file mode 100644
index 0000000000..33a88fe5ed
--- /dev/null
+++ b/src/main/java/rx/internal/util/ActionSubscriber.java
@@ -0,0 +1,51 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package rx.internal.util;
+
+import rx.Subscriber;
+import rx.functions.*;
+
+/**
+ * A Subscriber that forwards the onXXX method calls to callbacks.
+ * @param  the value type
+ */
+public final class ActionSubscriber extends Subscriber {
+
+    final Action1 onNext;
+    final Action1 onError;
+    final Action0 onCompleted;
+
+    public ActionSubscriber(Action1 onNext, Action1 onError, Action0 onCompleted) {
+        this.onNext = onNext;
+        this.onError = onError;
+        this.onCompleted = onCompleted;
+    }
+
+    @Override
+    public void onNext(T t) {
+        onNext.call(t);
+    }
+
+    @Override
+    public void onError(Throwable e) {
+        onError.call(e);
+    }
+
+    @Override
+    public void onCompleted() {
+        onCompleted.call();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rx/internal/util/InternalObservableUtils.java b/src/main/java/rx/internal/util/InternalObservableUtils.java
new file mode 100644
index 0000000000..0e8e3d6878
--- /dev/null
+++ b/src/main/java/rx/internal/util/InternalObservableUtils.java
@@ -0,0 +1,379 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.internal.util;
+
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import rx.*;
+import rx.Observable.Operator;
+import rx.exceptions.OnErrorNotImplementedException;
+import rx.functions.*;
+import rx.internal.operators.OperatorAny;
+import rx.observables.ConnectableObservable;
+
+/**
+ * Holder of named utility classes factored out from Observable to save
+ * source space and help with debugging with properly named objects.
+ */
+public enum InternalObservableUtils {
+    ;
+    
+    /**
+     * A BiFunction that expects an integer as its first parameter and returns +1.
+     */
+    public static final PlusOneFunc2 COUNTER = new PlusOneFunc2();
+
+    static final class PlusOneFunc2 implements Func2 {
+        @Override
+        public Integer call(Integer count, Object o) {
+            return count + 1;
+        }
+    }
+    
+    /**
+     * A BiFunction that expects a long as its first parameter and returns +1.
+     */
+    public static final PlusOneLongFunc2 LONG_COUNTER = new PlusOneLongFunc2();
+    
+    static final class PlusOneLongFunc2 implements Func2 {
+        @Override
+        public Long call(Long count, Object o) {
+            return count + 1;
+        }
+    }
+
+    /**
+     * A bifunction comparing two objects via null-safe equals.
+     */
+    public static final ObjectEqualsFunc2 OBJECT_EQUALS = new ObjectEqualsFunc2();
+
+    static final class ObjectEqualsFunc2 implements Func2 {
+        @Override
+        public Boolean call(Object first, Object second) {
+            return first == second || (first != null && first.equals(second));
+        }
+    }
+
+    /**
+     * A function that converts a List of Observables into an array of Observables.
+     */
+    public static final ToArrayFunc1 TO_ARRAY = new ToArrayFunc1();
+    
+    static final class ToArrayFunc1 implements Func1>, Observable[]> {
+        @Override
+        public Observable[] call(List> o) {
+            return o.toArray(new Observable[o.size()]);
+        }
+    }
+    
+    /**
+     * Returns a Func1 that checks if its argument is null-safe equals with the given
+     * constant reference.
+     * @param other the other object to check against (nulls allowed)
+     * @return the comparison function
+     */
+    public static Func1 equalsWith(Object other) {
+        return new EqualsWithFunc1(other);
+    }
+    
+    static final class EqualsWithFunc1 implements Func1 {
+        final Object other;
+        
+        public EqualsWithFunc1(Object other) {
+            this.other = other;
+        }
+        
+        @Override
+        public Boolean call(Object t) {
+            return t == other || (t != null && t.equals(other));
+        }
+    }
+
+    /**
+     * Returns a Func1 that checks if its argument is an instance of
+     * the supplied class.
+     * @param clazz the class to check against
+     * @return the comparison function
+     */
+    public static Func1 isInstanceOf(Class clazz) {
+        return new IsInstanceOfFunc1(clazz);
+    }
+    
+    static final class IsInstanceOfFunc1 implements Func1 {
+        final Class clazz;
+        
+        public IsInstanceOfFunc1(Class other) {
+            this.clazz = other;
+        }
+        
+        @Override
+        public Boolean call(Object t) {
+            return clazz.isInstance(t);
+        }
+    }
+
+    /**
+     * Returns a function that dematerializes the notification signal from an Observable and calls
+     * a notification handler with a null for non-terminal events.
+     * @param notificationHandler the handler to notify with nulls
+     * @return the Func1 instance
+     */
+    public static final Func1>, Observable> createRepeatDematerializer(Func1, ? extends Observable> notificationHandler) {
+        return new RepeatNotificationDematerializer(notificationHandler);
+    }
+    
+    static final class RepeatNotificationDematerializer implements Func1>, Observable> {
+        
+        final Func1, ? extends Observable> notificationHandler;
+        
+        public RepeatNotificationDematerializer(Func1, ? extends Observable> notificationHandler) {
+            this.notificationHandler = notificationHandler;
+        }
+        
+        @Override
+        public Observable call(Observable> notifications) {
+            return notificationHandler.call(notifications.map(RETURNS_VOID));
+        }
+    };
+    
+    static final ReturnsVoidFunc1 RETURNS_VOID = new ReturnsVoidFunc1();
+    
+    static final class ReturnsVoidFunc1 implements Func1 {
+        @Override
+        public Void call(Object t) {
+            return null;
+        }
+    }
+
+    /**
+     * Creates a Func1 which calls the selector function with the received argument, applies an
+     * observeOn on the result and returns the resulting Observable.
+     * @param selector the selector function
+     * @param scheduler the scheduler to apply on the output of the selector
+     * @return the new Func1 instance
+     */
+    public static  Func1, Observable> createReplaySelectorAndObserveOn(
+            Func1, ? extends Observable> selector, 
+                    Scheduler scheduler) {
+        return new SelectorAndObserveOn(selector, scheduler);
+    }
+    
+    static final class SelectorAndObserveOn implements Func1, Observable> {
+        final Func1, ? extends Observable> selector;
+        final Scheduler scheduler;
+
+        public SelectorAndObserveOn(Func1, ? extends Observable> selector,
+                Scheduler scheduler) {
+            super();
+            this.selector = selector;
+            this.scheduler = scheduler;
+        }
+
+
+
+        @Override
+        public Observable call(Observable t) {
+            return selector.call(t).observeOn(scheduler);
+        }
+    }
+
+    /**
+     * Returns a function that dematerializes the notification signal from an Observable and calls
+     * a notification handler with the Throwable.
+     * @param notificationHandler the handler to notify with Throwables
+     * @return the Func1 instance
+     */
+    public static final Func1>, Observable> createRetryDematerializer(Func1, ? extends Observable> notificationHandler) {
+        return new RetryNotificationDematerializer(notificationHandler);
+    }
+
+    static final class RetryNotificationDematerializer implements Func1>, Observable> {
+        final Func1, ? extends Observable> notificationHandler;
+        
+        public RetryNotificationDematerializer(Func1, ? extends Observable> notificationHandler) {
+            this.notificationHandler = notificationHandler;
+        }
+        
+        @Override
+        public Observable call(Observable> notifications) {
+            return notificationHandler.call(notifications.map(ERROR_EXTRACTOR));
+        }
+    }
+    
+    static final NotificationErrorExtractor ERROR_EXTRACTOR = new NotificationErrorExtractor();
+    
+    static final class NotificationErrorExtractor implements Func1, Throwable> {
+        @Override
+        public Throwable call(Notification t) {
+            return t.getThrowable();
+        }
+    }
+    
+    /**
+     * Returns a Func0 that supplies the ConnectableObservable returned by calling replay() on the source.
+     * @param source the source to call replay on by the supplier function
+     * @return the new Func0 instance
+     */
+    public static  Func0> createReplaySupplier(final Observable source) {
+        return new ReplaySupplierNoParams(source);
+    }
+
+    private static final class ReplaySupplierNoParams implements Func0> {
+        private final Observable source;
+
+        private ReplaySupplierNoParams(Observable source) {
+            this.source = source;
+        }
+
+        @Override
+        public ConnectableObservable call() {
+            return source.replay();
+        }
+    }
+    /**
+     * Returns a Func0 that supplies the ConnectableObservable returned by calling a parameterized replay() on the source.
+     * @param source the source to call replay on by the supplier function
+     * @param bufferSize
+     *            the buffer size that limits the number of items the connectable observable can replay
+     * @return the new Func0 instance
+     */
+    public static  Func0> createReplaySupplier(final Observable source, final int bufferSize) {
+        return new ReplaySupplierBuffer(source, bufferSize);
+    }
+
+    static final class ReplaySupplierBuffer implements Func0> {
+        private final Observable source;
+        private final int bufferSize;
+
+        private ReplaySupplierBuffer(Observable source, int bufferSize) {
+            this.source = source;
+            this.bufferSize = bufferSize;
+        }
+
+        @Override
+        public ConnectableObservable call() {
+            return source.replay(bufferSize);
+        }
+    }
+
+    /**
+     * Returns a Func0 that supplies the ConnectableObservable returned by calling a parameterized replay() on the source.
+     * @param source the source to call replay on by the supplier function
+     * @param time
+     *            the duration of the window in which the replayed items must have been emitted
+     * @param unit
+     *            the time unit of {@code time}
+     * @return the new Func0 instance
+     */
+    public static  Func0> createReplaySupplier(final Observable source, final long time, final TimeUnit unit, final Scheduler scheduler) {
+        return new ReplaySupplierBufferTime(source, time, unit, scheduler);
+    }
+
+    static final class ReplaySupplierBufferTime implements Func0> {
+        private final TimeUnit unit;
+        private final Observable source;
+        private final long time;
+        private final Scheduler scheduler;
+
+        private ReplaySupplierBufferTime(Observable source, long time, TimeUnit unit, Scheduler scheduler) {
+            this.unit = unit;
+            this.source = source;
+            this.time = time;
+            this.scheduler = scheduler;
+        }
+
+        @Override
+        public ConnectableObservable call() {
+            return source.replay(time, unit, scheduler);
+        }
+    }
+
+    /**
+     * Returns a Func0 that supplies the ConnectableObservable returned by calling a parameterized replay() on the source.
+     * @param source the source to call replay on by the supplier function
+     * @param bufferSize
+     *            the buffer size that limits the number of items the connectable observable can replay
+     * @param time
+     *            the duration of the window in which the replayed items must have been emitted
+     * @param unit
+     *            the time unit of {@code time}
+     * @return the new Func0 instance
+     */
+    public static  Func0> createReplaySupplier(final Observable source, final int bufferSize, final long time, final TimeUnit unit, final Scheduler scheduler) {
+        return new ReplaySupplierTime(source, bufferSize, time, unit, scheduler);
+    }
+
+    static final class ReplaySupplierTime implements Func0> {
+        private final long time;
+        private final TimeUnit unit;
+        private final Scheduler scheduler;
+        private final int bufferSize;
+        private final Observable source;
+
+        private ReplaySupplierTime(Observable source, int bufferSize, long time, TimeUnit unit,
+                Scheduler scheduler) {
+            this.time = time;
+            this.unit = unit;
+            this.scheduler = scheduler;
+            this.bufferSize = bufferSize;
+            this.source = source;
+        }
+
+        @Override
+        public ConnectableObservable call() {
+            return source.replay(bufferSize, time, unit, scheduler);
+        }
+    }
+
+    /**
+     * Returns a Func2 which calls a collector with its parameters and returns the first (R) parameter.
+     * @param collector the collector action to call
+     * @return the new Func2 instance
+     */
+    public static  Func2 createCollectorCaller(Action2 collector) {
+        return new CollectorCaller(collector);
+    }
+    
+    static final class CollectorCaller implements Func2 {
+        final Action2 collector;
+        
+        public CollectorCaller(Action2 collector) {
+            this.collector = collector;
+        }
+        
+        @Override
+        public R call(R state, T value) {
+            collector.call(state, value);
+            return state;
+        }
+    }
+
+    /**
+     * Throws an OnErrorNotImplementedException when called.
+     */
+    public static final Action1 ERROR_NOT_IMPLEMENTED = new ErrorNotImplementedAction();
+    
+    static final class ErrorNotImplementedAction implements Action1 {
+        @Override
+        public void call(Throwable t) {
+            throw new OnErrorNotImplementedException(t);
+        }
+    }
+    
+    public static final Operator IS_EMPTY = new OperatorAny(UtilityFunctions.alwaysTrue(), true);
+}
diff --git a/src/main/java/rx/internal/util/ObserverSubscriber.java b/src/main/java/rx/internal/util/ObserverSubscriber.java
new file mode 100644
index 0000000000..dbf519c263
--- /dev/null
+++ b/src/main/java/rx/internal/util/ObserverSubscriber.java
@@ -0,0 +1,46 @@
+/**
+ * Copyright 2016 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.internal.util;
+
+import rx.*;
+
+/**
+ * Wraps an Observer and forwards the onXXX method calls to it.
+ * @param  the value type
+ */
+public final class ObserverSubscriber extends Subscriber {
+    final Observer observer;
+
+    public ObserverSubscriber(Observer observer) {
+        this.observer = observer;
+    }
+    
+    @Override
+    public void onNext(T t) {
+        observer.onNext(t);
+    }
+    
+    @Override
+    public void onError(Throwable e) {
+        observer.onError(e);
+    }
+    
+    @Override
+    public void onCompleted() {
+        observer.onCompleted();
+    }
+}

From 54c6ed2f3fe4fabb00baca3df0f97901dee5b587 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Thu, 14 Apr 2016 19:51:04 +0200
Subject: [PATCH 024/294] 1.x: ConcatMap vs ConcatMapIterable perf (#3853)

---
 .../rx/operators/ConcatMapInterablePerf.java  | 181 ++++++++++++++++++
 1 file changed, 181 insertions(+)
 create mode 100644 src/perf/java/rx/operators/ConcatMapInterablePerf.java

diff --git a/src/perf/java/rx/operators/ConcatMapInterablePerf.java b/src/perf/java/rx/operators/ConcatMapInterablePerf.java
new file mode 100644
index 0000000000..40ea778acb
--- /dev/null
+++ b/src/perf/java/rx/operators/ConcatMapInterablePerf.java
@@ -0,0 +1,181 @@
+/**
+ * Copyright 2014 Netflix, Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rx.operators;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.infra.Blackhole;
+
+import rx.Observable;
+import rx.functions.Func1;
+import rx.jmh.LatchedObserver;
+
+/**
+ * Benchmark ConcatMapIterable.
+ * 

+ * gradlew benchmarks "-Pjmh=-f 1 -tu s -bm thrpt -wi 5 -i 5 -r 1 .*ConcatMapInterablePerf.*"
+ * 

+ * gradlew benchmarks "-Pjmh=-f 1 -tu ns -bm avgt -wi 5 -i 5 -r 1 .*ConcatMapInterablePerf.*"
+ */
+@BenchmarkMode(Mode.Throughput)
+@OutputTimeUnit(TimeUnit.SECONDS)
+@State(Scope.Thread)
+public class ConcatMapInterablePerf {
+
+    @Param({"1", "10", "100", "1000", "10000", "100000", "1000000"})
+    public int count;
+    
+    Observable justPlain;
+    
+    Observable justIterable;
+
+    Observable rangePlain;
+    
+    Observable rangeIterable;
+
+    Observable xrangePlain;
+    
+    Observable xrangeIterable;
+
+    Observable chainPlain;
+    
+    Observable chainIterable;
+
+    @Setup
+    public void setup() {
+        Integer[] values = new Integer[count];
+        for (int i = 0; i < count; i++) {
+            values[i] = i;
+        }
+        
+        int c = 1000000 / count;
+        Integer[] xvalues = new Integer[c];
+        for (int i = 0; i < c; i++) {
+            xvalues[i] = i;
+        }
+        
+        Observable source = Observable.from(values);
+
+        justPlain = source.concatMap(new Func1>() {
+            @Override
+            public Observable call(Integer v) {
+                return Observable.just(v);
+            }
+        });
+        justIterable = source.concatMapIterable(new Func1>() {
+            @Override
+            public Iterable call(Integer v) {
+                return Collections.singleton(v);
+            }
+        });
+
+        final Observable range = Observable.range(1, 2);
+        final List xrange = Arrays.asList(1, 2);
+        
+        rangePlain = source.concatMap(new Func1>() {
+            @Override
+            public Observable call(Integer v) {
+                return range;
+            }
+        });
+        rangeIterable = source.concatMapIterable(new Func1>() {
+            @Override
+            public Iterable call(Integer v) {
+                return xrange;
+            }
+        });
+        
+        final Observable xsource = Observable.from(xvalues);
+        final List xvaluesList = Arrays.asList(xvalues);
+        
+        xrangePlain = source.concatMap(new Func1>() {
+            @Override
+            public Observable call(Integer v) {
+                return xsource;
+            }
+        });
+        xrangeIterable = source.concatMapIterable(new Func1>() {
+            @Override
+            public Iterable call(Integer v) {
+                return xvaluesList;
+            }
+        });
+
+        chainPlain = xrangePlain.concatMap(new Func1>() {
+            @Override
+            public Observable call(Integer v) {
+                return Observable.just(v);
+            }
+        });
+        chainIterable = xrangeIterable.concatMapIterable(new Func1>() {
+            @Override
+            public Iterable call(Integer v) {
+                return Collections.singleton(v);
+            }
+        });
+    }
+    
+    @Benchmark
+    public void justPlain(Blackhole bh) {
+        justPlain.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void justIterable(Blackhole bh) {
+        justIterable.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void rangePlain(Blackhole bh) {
+        rangePlain.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void rangeIterable(Blackhole bh) {
+        rangeIterable.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void xrangePlain(Blackhole bh) {
+        xrangePlain.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void xrangeIterable(Blackhole bh) {
+        xrangeIterable.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void chainPlain(Blackhole bh) {
+        chainPlain.subscribe(new LatchedObserver(bh));
+    }
+
+    @Benchmark
+    public void chainIterable(Blackhole bh) {
+        chainIterable.subscribe(new LatchedObserver(bh));
+    }
+
+}

From a4298155f8bb1a5677495941a5d0f3ab6cbbbf77 Mon Sep 17 00:00:00 2001
From: Jake Wharton 
Date: Mon, 18 Apr 2016 06:34:36 -0400
Subject: [PATCH 025/294] Provide factories for creating the default scheduler
 instances. (#3856)

---
 .../schedulers/CachedThreadScheduler.java     |  7 ++--
 .../schedulers/NewThreadScheduler.java        | 36 +++++++++++++++++++
 .../java/rx/plugins/RxJavaSchedulersHook.java | 29 +++++++++++++++
 .../rx/schedulers/NewThreadScheduler.java     | 18 +++-------
 src/main/java/rx/schedulers/Schedulers.java   | 15 ++++----
 5 files changed, 81 insertions(+), 24 deletions(-)
 rename src/main/java/rx/{ => internal}/schedulers/CachedThreadScheduler.java (98%)
 create mode 100644 src/main/java/rx/internal/schedulers/NewThreadScheduler.java

diff --git a/src/main/java/rx/schedulers/CachedThreadScheduler.java b/src/main/java/rx/internal/schedulers/CachedThreadScheduler.java
similarity index 98%
rename from src/main/java/rx/schedulers/CachedThreadScheduler.java
rename to src/main/java/rx/internal/schedulers/CachedThreadScheduler.java
index 31c6f9288f..8e131e58e5 100644
--- a/src/main/java/rx/schedulers/CachedThreadScheduler.java
+++ b/src/main/java/rx/internal/schedulers/CachedThreadScheduler.java
@@ -13,18 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package rx.schedulers;
+package rx.internal.schedulers;
 
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.*;
 
 import rx.*;
 import rx.functions.Action0;
-import rx.internal.schedulers.*;
 import rx.internal.util.RxThreadFactory;
 import rx.subscriptions.*;
 
-/* package */final class CachedThreadScheduler extends Scheduler implements SchedulerLifecycle {
+public final class CachedThreadScheduler extends Scheduler implements SchedulerLifecycle {
     private static final String WORKER_THREAD_NAME_PREFIX = "RxCachedThreadScheduler-";
     static final RxThreadFactory WORKER_THREAD_FACTORY =
             new RxThreadFactory(WORKER_THREAD_NAME_PREFIX);
@@ -234,4 +233,4 @@ public void setExpirationTime(long expirationTime) {
             this.expirationTime = expirationTime;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/rx/internal/schedulers/NewThreadScheduler.java b/src/main/java/rx/internal/schedulers/NewThreadScheduler.java
new file mode 100644
index 0000000000..19aaedf8db
--- /dev/null
+++ b/src/main/java/rx/internal/schedulers/NewThreadScheduler.java
@@ -0,0 +1,36 @@
+/**
+ * Copyright 2014 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package rx.internal.schedulers;
+
+import rx.Scheduler;
+import rx.internal.util.RxThreadFactory;
+
+/**
+ * Schedules work on a new thread.
+ */
+public final class NewThreadScheduler extends Scheduler {
+
+    private static final String THREAD_NAME_PREFIX = "RxNewThreadScheduler-";
+    private static final RxThreadFactory THREAD_FACTORY = new RxThreadFactory(THREAD_NAME_PREFIX);
+
+    public NewThreadScheduler() {
+    }
+
+    @Override
+    public Worker createWorker() {
+        return new NewThreadWorker(THREAD_FACTORY);
+    }
+}
diff --git a/src/main/java/rx/plugins/RxJavaSchedulersHook.java b/src/main/java/rx/plugins/RxJavaSchedulersHook.java
index 133cdc363a..38d09dede9 100644
--- a/src/main/java/rx/plugins/RxJavaSchedulersHook.java
+++ b/src/main/java/rx/plugins/RxJavaSchedulersHook.java
@@ -17,7 +17,12 @@
 package rx.plugins;
 
 import rx.Scheduler;
+import rx.annotations.Experimental;
 import rx.functions.Action0;
+import rx.internal.schedulers.CachedThreadScheduler;
+import rx.internal.schedulers.EventLoopsScheduler;
+import rx.internal.schedulers.NewThreadScheduler;
+import rx.schedulers.Schedulers;
 
 /**
  * This plugin class provides 2 ways to customize {@link Scheduler} functionality
@@ -35,6 +40,30 @@
  */
 public class RxJavaSchedulersHook {
 
+    /**
+     * Create an instance of the default {@link Scheduler} used for {@link Schedulers#computation()}.
+     */
+    @Experimental
+    public static Scheduler createComputationScheduler() {
+        return new EventLoopsScheduler();
+    }
+
+    /**
+     * Create an instance of the default {@link Scheduler} used for {@link Schedulers#io()}.
+     */
+    @Experimental
+    public static Scheduler createIoScheduler() {
+        return new CachedThreadScheduler();
+    }
+
+    /**
+     * Create an instance of the default {@link Scheduler} used for {@link Schedulers#newThread()}.
+     */
+    @Experimental
+    public static Scheduler createNewThreadScheduler() {
+        return new NewThreadScheduler();
+    }
+
     protected RxJavaSchedulersHook() {
 
     }
diff --git a/src/main/java/rx/schedulers/NewThreadScheduler.java b/src/main/java/rx/schedulers/NewThreadScheduler.java
index d8c87bd245..5dc6046268 100644
--- a/src/main/java/rx/schedulers/NewThreadScheduler.java
+++ b/src/main/java/rx/schedulers/NewThreadScheduler.java
@@ -16,28 +16,18 @@
 package rx.schedulers;
 
 import rx.Scheduler;
-import rx.internal.schedulers.NewThreadWorker;
-import rx.internal.util.RxThreadFactory;
 
 /**
- * Schedules work on a new thread.
+ * @deprecated This type was never publicly instantiable. Use {@link Schedulers#newThread()}.
  */
+@Deprecated
 public final class NewThreadScheduler extends Scheduler {
-
-    private static final String THREAD_NAME_PREFIX = "RxNewThreadScheduler-";
-    private static final RxThreadFactory THREAD_FACTORY = new RxThreadFactory(THREAD_NAME_PREFIX);
-    private static final NewThreadScheduler INSTANCE = new NewThreadScheduler();
-
-    /* package */static NewThreadScheduler instance() {
-        return INSTANCE;
-    }
-
     private NewThreadScheduler() {
-
+        throw new AssertionError();
     }
 
     @Override
     public Worker createWorker() {
-        return new NewThreadWorker(THREAD_FACTORY);
+        return null;
     }
 }
diff --git a/src/main/java/rx/schedulers/Schedulers.java b/src/main/java/rx/schedulers/Schedulers.java
index 0ec2d3a273..f81235347c 100644
--- a/src/main/java/rx/schedulers/Schedulers.java
+++ b/src/main/java/rx/schedulers/Schedulers.java
@@ -19,6 +19,7 @@
 import rx.internal.schedulers.*;
 import rx.internal.util.RxRingBuffer;
 import rx.plugins.RxJavaPlugins;
+import rx.plugins.RxJavaSchedulersHook;
 
 import java.util.concurrent.Executor;
 
@@ -34,25 +35,27 @@ public final class Schedulers {
     private static final Schedulers INSTANCE = new Schedulers();
 
     private Schedulers() {
-        Scheduler c = RxJavaPlugins.getInstance().getSchedulersHook().getComputationScheduler();
+        RxJavaSchedulersHook hook = RxJavaPlugins.getInstance().getSchedulersHook();
+
+        Scheduler c = hook.getComputationScheduler();
         if (c != null) {
             computationScheduler = c;
         } else {
-            computationScheduler = new EventLoopsScheduler();
+            computationScheduler = RxJavaSchedulersHook.createComputationScheduler();
         }
 
-        Scheduler io = RxJavaPlugins.getInstance().getSchedulersHook().getIOScheduler();
+        Scheduler io = hook.getIOScheduler();
         if (io != null) {
             ioScheduler = io;
         } else {
-            ioScheduler = new CachedThreadScheduler();
+            ioScheduler = RxJavaSchedulersHook.createIoScheduler();
         }
 
-        Scheduler nt = RxJavaPlugins.getInstance().getSchedulersHook().getNewThreadScheduler();
+        Scheduler nt = hook.getNewThreadScheduler();
         if (nt != null) {
             newThreadScheduler = nt;
         } else {
-            newThreadScheduler = NewThreadScheduler.instance();
+            newThreadScheduler = RxJavaSchedulersHook.createNewThreadScheduler();
         }
     }
 

From 6efc2cfa863ddf45f336249bf554d88ed8fa7f2d Mon Sep 17 00:00:00 2001
From: Artem Zinnatullin 
Date: Tue, 19 Apr 2016 09:18:23 +0300
Subject: [PATCH 026/294] 1.x: Add Single.toCompletable() (#3866)

Closes #3865.
---
 src/main/java/rx/Single.java     | 25 +++++++++++++++++++++++++
 src/test/java/rx/SingleTest.java | 23 +++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/src/main/java/rx/Single.java b/src/main/java/rx/Single.java
index b1e2ed4074..e954612b4f 100644
--- a/src/main/java/rx/Single.java
+++ b/src/main/java/rx/Single.java
@@ -2095,6 +2095,31 @@ public final Observable toObservable() {
         return asObservable(this);
     }
 
+    /**
+     * Returns a {@link Completable} that discards result of the {@link Single} (similar to
+     * {@link Observable#ignoreElements()}) and calls {@code onCompleted} when this source {@link Single} calls
+     * {@code onSuccess}. Error terminal event is propagated.
+     * 

+     * 
+     * 

+     * 
Scheduler:

+     * 
{@code toCompletable} does not operate by default on a particular {@link Scheduler}.

+     * 

+     *
+     * @return a {@link Completable} that calls {@code onCompleted} on it's subscriber when the source {@link Single}
+     *         calls {@code onSuccess}.
+     * @see ReactiveX documentation:
+     *      Completable.
+     * @since (if this graduates from Experimental/Beta to supported, replace this parenthetical
+     *        with the release number).
+     */
+    @Experimental
+    public final Completable toCompletable() {
+        return Completable.fromSingle(this);
+    }
+
     /**
      * Returns a Single that mirrors the source Single but applies a timeout policy for its emitted item. If it
      * is not emitted within the specified timeout duration, the resulting Single terminates and notifies
diff --git a/src/test/java/rx/SingleTest.java b/src/test/java/rx/SingleTest.java
index 2952e22bfd..3760330eb4 100644
--- a/src/test/java/rx/SingleTest.java
+++ b/src/test/java/rx/SingleTest.java
@@ -812,6 +812,29 @@ public void testToObservable() {
         ts.assertCompleted();
     }
 
+    @Test
+    public void toCompletableSuccess() {
+        Completable completable = Single.just("value").toCompletable();
+        TestSubscriber testSubscriber = new TestSubscriber();
+        completable.subscribe(testSubscriber);
+
+        testSubscriber.assertCompleted();
+        testSubscriber.assertNoValues();
+        testSubscriber.assertNoErrors();
+    }
+
+    @Test
+    public void toCompletableError() {
+        TestException exception = new TestException();
+        Completable completable = Single.error(exception).toCompletable();
+        TestSubscriber testSubscriber = new TestSubscriber();
+        completable.subscribe(testSubscriber);
+
+        testSubscriber.assertError(exception);
+        testSubscriber.assertNoValues();
+        testSubscriber.assertNotCompleted();
+    }
+
     @Test
     public void doOnErrorShouldNotCallActionIfNoErrorHasOccurred() {
         Action1 action = mock(Action1.class);

From 8af2bc96808267b3e3d07021ab4e95a8467a05b9 Mon Sep 17 00:00:00 2001
From: Shixiong Zhu 
Date: Wed, 20 Apr 2016 10:03:04 -0700
Subject: [PATCH 027/294] Fix an unsubscribe race in EventLoopWorker (#3868)

There is an unsubscribe race condition similar to #3842 in `CachedThreadScheduler.EventLoopWorker` and `EventLoopsScheduler.EventLoopWorker`. Image the following execution order:

| Execution Order  | thread 1 | thread 2 |
| ------------- | ------------- | ------------- |
| 1 |  | submit task A |
| 2 |  | submit task B |
| 3 | unsubscribe Worker  |  |
| 4 | unsubscribe task A |   |
| 5 | | task A won't run as it's unsubscribed |
| 6 | | run task B |
| 7 | unsubscribe task B |  |

So task B will run but its previous task A will be skipped.

This PR adds a check before running an action and moves `workerUnderConcurrentUnsubscribeShouldNotAllowLaterTasksToRunDueToUnsubscriptionRace` to `AbstractSchedulerConcurrencyTests` to test all concurrent schedulers.
---
 .../schedulers/CachedThreadScheduler.java     | 12 +++++--
 .../schedulers/EventLoopsScheduler.java       | 27 +++++++++++++---
 .../AbstractSchedulerConcurrencyTests.java    | 31 +++++++++++++++++++
 .../rx/schedulers/ExecutorSchedulerTest.java  | 30 ------------------
 4 files changed, 63 insertions(+), 37 deletions(-)

diff --git a/src/main/java/rx/internal/schedulers/CachedThreadScheduler.java b/src/main/java/rx/internal/schedulers/CachedThreadScheduler.java
index 8e131e58e5..472ade9109 100644
--- a/src/main/java/rx/internal/schedulers/CachedThreadScheduler.java
+++ b/src/main/java/rx/internal/schedulers/CachedThreadScheduler.java
@@ -204,13 +204,21 @@ public Subscription schedule(Action0 action) {
         }
 
         @Override
-        public Subscription schedule(Action0 action, long delayTime, TimeUnit unit) {
+        public Subscription schedule(final Action0 action, long delayTime, TimeUnit unit) {
             if (innerSubscription.isUnsubscribed()) {
                 // don't schedule, we are unsubscribed
                 return Subscriptions.unsubscribed();
             }
 
-            ScheduledAction s = threadWorker.scheduleActual(action, delayTime, unit);
+            ScheduledAction s = threadWorker.scheduleActual(new Action0() {
+                @Override
+                public void call() {
+                    if (isUnsubscribed()) {
+                        return;
+                    }
+                    action.call();
+                }
+            }, delayTime, unit);
             innerSubscription.add(s);
             s.addParent(innerSubscription);
             return s;
diff --git a/src/main/java/rx/internal/schedulers/EventLoopsScheduler.java b/src/main/java/rx/internal/schedulers/EventLoopsScheduler.java
index afcf7464ed..1eef164937 100644
--- a/src/main/java/rx/internal/schedulers/EventLoopsScheduler.java
+++ b/src/main/java/rx/internal/schedulers/EventLoopsScheduler.java
@@ -156,20 +156,37 @@ public boolean isUnsubscribed() {
         }
 
         @Override
-        public Subscription schedule(Action0 action) {
+        public Subscription schedule(final Action0 action) {
             if (isUnsubscribed()) {
                 return Subscriptions.unsubscribed();
             }
 
-            return poolWorker.scheduleActual(action, 0, null, serial);
+            return poolWorker.scheduleActual(new Action0() {
+                @Override
+                public void call() {
+                    if (isUnsubscribed()) {
+                        return;
+                    }
+                    action.call();
+                }
+            }, 0, null, serial);
         }
+
         @Override
-        public Subscription schedule(Action0 action, long delayTime, TimeUnit unit) {
+        public Subscription schedule(final Action0 action, long delayTime, TimeUnit unit) {
             if (isUnsubscribed()) {
                 return Subscriptions.unsubscribed();
             }
 
-            return poolWorker.scheduleActual(action, delayTime, unit, timed);
+            return poolWorker.scheduleActual(new Action0() {
+                @Override
+                public void call() {
+                    if (isUnsubscribed()) {
+                        return;
+                    }
+                    action.call();
+                }
+            }, delayTime, unit, timed);
         }
     }
 
@@ -178,4 +195,4 @@ static final class PoolWorker extends NewThreadWorker {
             super(threadFactory);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/rx/schedulers/AbstractSchedulerConcurrencyTests.java b/src/test/java/rx/schedulers/AbstractSchedulerConcurrencyTests.java
index 2eab100310..9e3fdf94d3 100644
--- a/src/test/java/rx/schedulers/AbstractSchedulerConcurrencyTests.java
+++ b/src/test/java/rx/schedulers/AbstractSchedulerConcurrencyTests.java
@@ -20,6 +20,8 @@
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -423,4 +425,33 @@ public void call(Integer t) {
         assertEquals(5, count.get());
     }
 
+    @Test
+    public void workerUnderConcurrentUnsubscribeShouldNotAllowLaterTasksToRunDueToUnsubscriptionRace() {
+        Scheduler scheduler = getScheduler();
+        for (int i = 0; i < 1000; i++) {
+            Worker worker = scheduler.createWorker();
+            final Queue q = new ConcurrentLinkedQueue();
+            Action0 action1 = new Action0() {
+
+                @Override
+                public void call() {
+                    q.add(1);
+                }
+            };
+            Action0 action2 = new Action0() {
+
+                @Override
+                public void call() {
+                    q.add(2);
+                }
+            };
+            worker.schedule(action1);
+            worker.schedule(action2);
+            worker.unsubscribe();
+            if (q.size() == 1 && q.poll() == 2) {
+                //expect a queue of 1,2 or 1. If queue is just 2 then we have a problem!
+                fail("wrong order on loop " + i);
+            }
+        }
+    }
 }
diff --git a/src/test/java/rx/schedulers/ExecutorSchedulerTest.java b/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
index 0777208cab..ed4e03213d 100644
--- a/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
+++ b/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
@@ -18,11 +18,9 @@
 import static org.junit.Assert.*;
 
 import java.lang.management.*;
-import java.util.Queue;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import rx.*;
@@ -277,32 +275,4 @@ public void call() {
         
         assertFalse(w.tasks.hasSubscriptions());
     }
-    
-    @Test
-    public void workerUnderConcurrentUnsubscribeShouldNotAllowLaterTasksToRunDueToUnsubscriptionRace() {
-        Scheduler scheduler = Schedulers.from(Executors.newFixedThreadPool(1));
-        for (int i = 0; i< 1000; i++) {
-            Worker worker = scheduler.createWorker();
-            final Queue q = new ConcurrentLinkedQueue();
-            Action0 action1 = new Action0() {
-    
-                @Override
-                public void call() {
-                    q.add(1);
-                }};
-            Action0 action2 = new Action0() {
-    
-                @Override
-                public void call() {
-                    q.add(2);
-                }};
-            worker.schedule(action1);
-            worker.schedule(action2);
-            worker.unsubscribe();
-            if (q.size()==1 && q.poll() == 2) {
-                //expect a queue of 1,2 or 1. If queue is just 2 then we have a problem!
-                Assert.fail("wrong order on loop " + i);
-            }
-        }
-    }
 }

From 3439dd8f73affa9b80277e72777ec3f15baafcfc Mon Sep 17 00:00:00 2001
From: Dave Moten 
Date: Thu, 21 Apr 2016 03:15:37 +1000
Subject: [PATCH 028/294] ensure waiting  tasks are cancelled on worker
 unsubscription (#3867)

---
 src/main/java/rx/schedulers/ExecutorScheduler.java | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/main/java/rx/schedulers/ExecutorScheduler.java b/src/main/java/rx/schedulers/ExecutorScheduler.java
index 70f217e49b..11d10214f9 100644
--- a/src/main/java/rx/schedulers/ExecutorScheduler.java
+++ b/src/main/java/rx/schedulers/ExecutorScheduler.java
@@ -100,14 +100,17 @@ public void run() {
                     queue.clear();
                     return;
                 }
-
                 ScheduledAction sa = queue.poll();
                 if (sa == null) {
                     return;
                 }
-
                 if (!sa.isUnsubscribed()) {
-                    sa.run();
+                    if (!tasks.isUnsubscribed()) {
+                        sa.run();
+                    } else {
+                        queue.clear();
+                        return;
+                    }
                 }
             } while (wip.decrementAndGet() != 0);
         }

From 95389c260fe93972421bfe8092bceb283d0db346 Mon Sep 17 00:00:00 2001
From: Jake Wharton 
Date: Thu, 21 Apr 2016 03:06:35 -0400
Subject: [PATCH 029/294] Deprecate remaining public scheduler types. (#3871)

---
 .../internal/operators/OperatorObserveOn.java |   2 +-
 .../schedulers/ExecutorScheduler.java         |   5 +-
 .../GenericScheduledExecutorService.java      |   1 -
 .../schedulers/ImmediateScheduler.java        |  73 ++++++++++
 .../schedulers/SleepingAction.java            |   2 +-
 .../schedulers/TrampolineScheduler.java       | 131 ++++++++++++++++++
 .../rx/schedulers/ImmediateScheduler.java     |  55 +-------
 .../rx/schedulers/NewThreadScheduler.java     |   1 +
 src/main/java/rx/schedulers/Schedulers.java   |  14 +-
 .../rx/schedulers/TrampolineScheduler.java    | 113 +--------------
 .../schedulers/ExecutorSchedulerTest.java     |  81 +----------
 .../schedulers/ComputationSchedulerTests.java |   4 +-
 ...chedulerTest.java => IoSchedulerTest.java} |   8 +-
 .../java/rx/schedulers/SchedulerTests.java    |  78 ++++++++++-
 14 files changed, 316 insertions(+), 252 deletions(-)
 rename src/main/java/rx/{ => internal}/schedulers/ExecutorScheduler.java (98%)
 create mode 100644 src/main/java/rx/internal/schedulers/ImmediateScheduler.java
 rename src/main/java/rx/{ => internal}/schedulers/SleepingAction.java (98%)
 create mode 100644 src/main/java/rx/internal/schedulers/TrampolineScheduler.java
 rename src/test/java/rx/{ => internal}/schedulers/ExecutorSchedulerTest.java (70%)
 rename src/test/java/rx/schedulers/{CachedThreadSchedulerTest.java => IoSchedulerTest.java} (91%)

diff --git a/src/main/java/rx/internal/operators/OperatorObserveOn.java b/src/main/java/rx/internal/operators/OperatorObserveOn.java
index 1720e1dfe2..f09a424020 100644
--- a/src/main/java/rx/internal/operators/OperatorObserveOn.java
+++ b/src/main/java/rx/internal/operators/OperatorObserveOn.java
@@ -22,11 +22,11 @@
 import rx.Observable.Operator;
 import rx.exceptions.MissingBackpressureException;
 import rx.functions.Action0;
+import rx.internal.schedulers.*;
 import rx.internal.util.*;
 import rx.internal.util.atomic.SpscAtomicArrayQueue;
 import rx.internal.util.unsafe.*;
 import rx.plugins.RxJavaPlugins;
-import rx.schedulers.*;
 
 /**
  * Delivers events on the specified {@code Scheduler} asynchronously via an unbounded buffer.
diff --git a/src/main/java/rx/schedulers/ExecutorScheduler.java b/src/main/java/rx/internal/schedulers/ExecutorScheduler.java
similarity index 98%
rename from src/main/java/rx/schedulers/ExecutorScheduler.java
rename to src/main/java/rx/internal/schedulers/ExecutorScheduler.java
index 11d10214f9..b40c0b4900 100644
--- a/src/main/java/rx/schedulers/ExecutorScheduler.java
+++ b/src/main/java/rx/internal/schedulers/ExecutorScheduler.java
@@ -13,14 +13,13 @@
  * License for the specific language governing permissions and limitations under
  * the License.
  */
-package rx.schedulers;
+package rx.internal.schedulers;
 
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import rx.*;
 import rx.functions.Action0;
-import rx.internal.schedulers.*;
 import rx.plugins.RxJavaPlugins;
 import rx.subscriptions.*;
 
@@ -30,7 +29,7 @@
  * Note that thread-hopping is unavoidable with this kind of Scheduler as we don't know about the underlying
  * threading behavior of the executor.
  */
-/* public */final class ExecutorScheduler extends Scheduler {
+public final class ExecutorScheduler extends Scheduler {
     final Executor executor;
     public ExecutorScheduler(Executor executor) {
         this.executor = executor;
diff --git a/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java b/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java
index e322945068..3bc60f076b 100644
--- a/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java
+++ b/src/main/java/rx/internal/schedulers/GenericScheduledExecutorService.java
@@ -20,7 +20,6 @@
 
 import rx.Scheduler;
 import rx.internal.util.RxThreadFactory;
-import rx.schedulers.*;
 
 /**
  * A default {@link ScheduledExecutorService} that can be used for scheduling actions when a {@link Scheduler} implementation doesn't have that ability.
diff --git a/src/main/java/rx/internal/schedulers/ImmediateScheduler.java b/src/main/java/rx/internal/schedulers/ImmediateScheduler.java
new file mode 100644
index 0000000000..c3dd7a6f85
--- /dev/null
+++ b/src/main/java/rx/internal/schedulers/ImmediateScheduler.java
@@ -0,0 +1,73 @@
+/**
+ * Copyright 2014 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package rx.internal.schedulers;
+
+import java.util.concurrent.TimeUnit;
+
+import rx.Scheduler;
+import rx.Subscription;
+import rx.functions.Action0;
+import rx.subscriptions.BooleanSubscription;
+import rx.subscriptions.Subscriptions;
+
+/**
+ * Executes work immediately on the current thread.
+ */
+public final class ImmediateScheduler extends Scheduler {
+    public static final ImmediateScheduler INSTANCE = new ImmediateScheduler();
+
+    private ImmediateScheduler() {
+    }
+
+    @Override
+    public Worker createWorker() {
+        return new InnerImmediateScheduler();
+    }
+
+    private class InnerImmediateScheduler extends Scheduler.Worker implements Subscription {
+
+        final BooleanSubscription innerSubscription = new BooleanSubscription();
+
+        InnerImmediateScheduler() {
+        }
+
+        @Override
+        public Subscription schedule(Action0 action, long delayTime, TimeUnit unit) {
+            // since we are executing immediately on this thread we must cause this thread to sleep
+            long execTime = ImmediateScheduler.this.now() + unit.toMillis(delayTime);
+
+            return schedule(new SleepingAction(action, this, execTime));
+        }
+
+        @Override
+        public Subscription schedule(Action0 action) {
+            action.call();
+            return Subscriptions.unsubscribed();
+        }
+
+        @Override
+        public void unsubscribe() {
+            innerSubscription.unsubscribe();
+        }
+
+        @Override
+        public boolean isUnsubscribed() {
+            return innerSubscription.isUnsubscribed();
+        }
+
+    }
+
+}
diff --git a/src/main/java/rx/schedulers/SleepingAction.java b/src/main/java/rx/internal/schedulers/SleepingAction.java
similarity index 98%
rename from src/main/java/rx/schedulers/SleepingAction.java
rename to src/main/java/rx/internal/schedulers/SleepingAction.java
index bb13734475..c41c01caf0 100644
--- a/src/main/java/rx/schedulers/SleepingAction.java
+++ b/src/main/java/rx/internal/schedulers/SleepingAction.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package rx.schedulers;
+package rx.internal.schedulers;
 
 import rx.Scheduler;
 import rx.functions.Action0;
diff --git a/src/main/java/rx/internal/schedulers/TrampolineScheduler.java b/src/main/java/rx/internal/schedulers/TrampolineScheduler.java
new file mode 100644
index 0000000000..94fea1964a
--- /dev/null
+++ b/src/main/java/rx/internal/schedulers/TrampolineScheduler.java
@@ -0,0 +1,131 @@
+/**
+ * Copyright 2014 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package rx.internal.schedulers;
+
+import java.util.concurrent.PriorityBlockingQueue;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import rx.Scheduler;
+import rx.Subscription;
+import rx.functions.Action0;
+import rx.subscriptions.BooleanSubscription;
+import rx.subscriptions.Subscriptions;
+
+/**
+ * Schedules work on the current thread but does not execute immediately. Work is put in a queue and executed
+ * after the current unit of work is completed.
+ */
+public final class TrampolineScheduler extends Scheduler {
+    public static final TrampolineScheduler INSTANCE = new TrampolineScheduler();
+
+    @Override
+    public Worker createWorker() {
+        return new InnerCurrentThreadScheduler();
+    }
+
+    private TrampolineScheduler() {
+    }
+
+    private static class InnerCurrentThreadScheduler extends Scheduler.Worker implements Subscription {
+
+        final AtomicInteger counter = new AtomicInteger();
+        final PriorityBlockingQueue queue = new PriorityBlockingQueue();
+        private final BooleanSubscription innerSubscription = new BooleanSubscription();
+        private final AtomicInteger wip = new AtomicInteger();
+
+        InnerCurrentThreadScheduler() {
+        }
+
+        @Override
+        public Subscription schedule(Action0 action) {
+            return enqueue(action, now());
+        }
+
+        @Override
+        public Subscription schedule(Action0 action, long delayTime, TimeUnit unit) {
+            long execTime = now() + unit.toMillis(delayTime);
+
+            return enqueue(new SleepingAction(action, this, execTime), execTime);
+        }
+
+        private Subscription enqueue(Action0 action, long execTime) {
+            if (innerSubscription.isUnsubscribed()) {
+                return Subscriptions.unsubscribed();
+            }
+            final TimedAction timedAction = new TimedAction(action, execTime, counter.incrementAndGet());
+            queue.add(timedAction);
+
+            if (wip.getAndIncrement() == 0) {
+                do {
+                    final TimedAction polled = queue.poll();
+                    if (polled != null) {
+                        polled.action.call();
+                    }
+                } while (wip.decrementAndGet() > 0);
+                return Subscriptions.unsubscribed();
+            } else {
+                // queue wasn't empty, a parent is already processing so we just add to the end of the queue
+                return Subscriptions.create(new Action0() {
+
+                    @Override
+                    public void call() {
+                        queue.remove(timedAction);
+                    }
+
+                });
+            }
+        }
+
+        @Override
+        public void unsubscribe() {
+            innerSubscription.unsubscribe();
+        }
+
+        @Override
+        public boolean isUnsubscribed() {
+            return innerSubscription.isUnsubscribed();
+        }
+
+    }
+
+    private static final class TimedAction implements Comparable {
+        final Action0 action;
+        final Long execTime;
+        final int count; // In case if time between enqueueing took less than 1ms
+
+        TimedAction(Action0 action, Long execTime, int count) {
+            this.action = action;
+            this.execTime = execTime;
+            this.count = count;
+        }
+
+        @Override
+        public int compareTo(TimedAction that) {
+            int result = execTime.compareTo(that.execTime);
+            if (result == 0) {
+                return compare(count, that.count);
+            }
+            return result;
+        }
+    }
+
+    // because I can't use Integer.compare from Java 7
+    static int compare(int x, int y) {
+        return (x < y) ? -1 : ((x == y) ? 0 : 1);
+    }
+
+}
diff --git a/src/main/java/rx/schedulers/ImmediateScheduler.java b/src/main/java/rx/schedulers/ImmediateScheduler.java
index e480754a58..3be8edda4a 100644
--- a/src/main/java/rx/schedulers/ImmediateScheduler.java
+++ b/src/main/java/rx/schedulers/ImmediateScheduler.java
@@ -15,63 +15,20 @@
  */
 package rx.schedulers;
 
-import java.util.concurrent.TimeUnit;
-
 import rx.Scheduler;
-import rx.Subscription;
-import rx.functions.Action0;
-import rx.subscriptions.BooleanSubscription;
-import rx.subscriptions.Subscriptions;
 
 /**
- * Executes work immediately on the current thread.
+ * @deprecated This type was never publicly instantiable. Use {@link Schedulers#immediate()}.
  */
+@Deprecated
+@SuppressWarnings("unused") // Class was part of public API.
 public final class ImmediateScheduler extends Scheduler {
-    private static final ImmediateScheduler INSTANCE = new ImmediateScheduler();
-
-    /* package */static ImmediateScheduler instance() {
-        return INSTANCE;
-    }
-
-    /* package accessible for unit tests */ImmediateScheduler() {
+    private ImmediateScheduler() {
+        throw new AssertionError();
     }
 
     @Override
     public Worker createWorker() {
-        return new InnerImmediateScheduler();
+        return null;
     }
-
-    private class InnerImmediateScheduler extends Scheduler.Worker implements Subscription {
-
-        final BooleanSubscription innerSubscription = new BooleanSubscription();
-
-        InnerImmediateScheduler() {
-        }
-
-        @Override
-        public Subscription schedule(Action0 action, long delayTime, TimeUnit unit) {
-            // since we are executing immediately on this thread we must cause this thread to sleep
-            long execTime = ImmediateScheduler.this.now() + unit.toMillis(delayTime);
-
-            return schedule(new SleepingAction(action, this, execTime));
-        }
-
-        @Override
-        public Subscription schedule(Action0 action) {
-            action.call();
-            return Subscriptions.unsubscribed();
-        }
-
-        @Override
-        public void unsubscribe() {
-            innerSubscription.unsubscribe();
-        }
-
-        @Override
-        public boolean isUnsubscribed() {
-            return innerSubscription.isUnsubscribed();
-        }
-
-    }
-
 }
diff --git a/src/main/java/rx/schedulers/NewThreadScheduler.java b/src/main/java/rx/schedulers/NewThreadScheduler.java
index 5dc6046268..192f8b29a8 100644
--- a/src/main/java/rx/schedulers/NewThreadScheduler.java
+++ b/src/main/java/rx/schedulers/NewThreadScheduler.java
@@ -21,6 +21,7 @@
  * @deprecated This type was never publicly instantiable. Use {@link Schedulers#newThread()}.
  */
 @Deprecated
+@SuppressWarnings("unused") // Class was part of public API.
 public final class NewThreadScheduler extends Scheduler {
     private NewThreadScheduler() {
         throw new AssertionError();
diff --git a/src/main/java/rx/schedulers/Schedulers.java b/src/main/java/rx/schedulers/Schedulers.java
index f81235347c..eae594ef08 100644
--- a/src/main/java/rx/schedulers/Schedulers.java
+++ b/src/main/java/rx/schedulers/Schedulers.java
@@ -61,21 +61,21 @@ private Schedulers() {
 
     /**
      * Creates and returns a {@link Scheduler} that executes work immediately on the current thread.
-     * 
-     * @return an {@link ImmediateScheduler} instance
+     *
+     * @return a {@link Scheduler} that executes work immediately
      */
     public static Scheduler immediate() {
-        return ImmediateScheduler.instance();
+        return rx.internal.schedulers.ImmediateScheduler.INSTANCE;
     }
 
     /**
      * Creates and returns a {@link Scheduler} that queues work on the current thread to be executed after the
      * current work completes.
-     * 
-     * @return a {@link TrampolineScheduler} instance
+     *
+     * @return a {@link Scheduler} that queues work on the current thread
      */
     public static Scheduler trampoline() {
-        return TrampolineScheduler.instance();
+        return rx.internal.schedulers.TrampolineScheduler.INSTANCE;
     }
 
     /**
@@ -83,7 +83,7 @@ public static Scheduler trampoline() {
      * 

      * Unhandled errors will be delivered to the scheduler Thread's {@link java.lang.Thread.UncaughtExceptionHandler}.
      *
-     * @return a {@link NewThreadScheduler} instance
+     * @return a {@link Scheduler} that creates new threads
      */
     public static Scheduler newThread() {
         return INSTANCE.newThreadScheduler;
diff --git a/src/main/java/rx/schedulers/TrampolineScheduler.java b/src/main/java/rx/schedulers/TrampolineScheduler.java
index 45bb18546c..5f708cdc23 100644
--- a/src/main/java/rx/schedulers/TrampolineScheduler.java
+++ b/src/main/java/rx/schedulers/TrampolineScheduler.java
@@ -15,121 +15,20 @@
  */
 package rx.schedulers;
 
-import java.util.concurrent.PriorityBlockingQueue;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-
 import rx.Scheduler;
-import rx.Subscription;
-import rx.functions.Action0;
-import rx.subscriptions.BooleanSubscription;
-import rx.subscriptions.Subscriptions;
 
 /**
- * Schedules work on the current thread but does not execute immediately. Work is put in a queue and executed
- * after the current unit of work is completed.
+ * @deprecated This type was never publicly instantiable. Use {@link Schedulers#trampoline()}.
  */
+@Deprecated
+@SuppressWarnings("unused") // Class was part of public API.
 public final class TrampolineScheduler extends Scheduler {
-    private static final TrampolineScheduler INSTANCE = new TrampolineScheduler();
-
-    /* package */static TrampolineScheduler instance() {
-        return INSTANCE;
+    private TrampolineScheduler() {
+        throw new AssertionError();
     }
 
     @Override
     public Worker createWorker() {
-        return new InnerCurrentThreadScheduler();
-    }
-
-    /* package accessible for unit tests */TrampolineScheduler() {
+        return null;
     }
-
-    private static class InnerCurrentThreadScheduler extends Scheduler.Worker implements Subscription {
-
-        final AtomicInteger counter = new AtomicInteger();
-        final PriorityBlockingQueue queue = new PriorityBlockingQueue();
-        private final BooleanSubscription innerSubscription = new BooleanSubscription();
-        private final AtomicInteger wip = new AtomicInteger();
-
-        InnerCurrentThreadScheduler() {
-        }
-
-        @Override
-        public Subscription schedule(Action0 action) {
-            return enqueue(action, now());
-        }
-
-        @Override
-        public Subscription schedule(Action0 action, long delayTime, TimeUnit unit) {
-            long execTime = now() + unit.toMillis(delayTime);
-
-            return enqueue(new SleepingAction(action, this, execTime), execTime);
-        }
-
-        private Subscription enqueue(Action0 action, long execTime) {
-            if (innerSubscription.isUnsubscribed()) {
-                return Subscriptions.unsubscribed();
-            }
-            final TimedAction timedAction = new TimedAction(action, execTime, counter.incrementAndGet());
-            queue.add(timedAction);
-
-            if (wip.getAndIncrement() == 0) {
-                do {
-                    final TimedAction polled = queue.poll();
-                    if (polled != null) {
-                        polled.action.call();
-                    }
-                } while (wip.decrementAndGet() > 0);
-                return Subscriptions.unsubscribed();
-            } else {
-                // queue wasn't empty, a parent is already processing so we just add to the end of the queue
-                return Subscriptions.create(new Action0() {
-
-                    @Override
-                    public void call() {
-                        queue.remove(timedAction);
-                    }
-
-                });
-            }
-        }
-
-        @Override
-        public void unsubscribe() {
-            innerSubscription.unsubscribe();
-        }
-
-        @Override
-        public boolean isUnsubscribed() {
-            return innerSubscription.isUnsubscribed();
-        }
-
-    }
-
-    private static final class TimedAction implements Comparable {
-        final Action0 action;
-        final Long execTime;
-        final int count; // In case if time between enqueueing took less than 1ms
-
-        TimedAction(Action0 action, Long execTime, int count) {
-            this.action = action;
-            this.execTime = execTime;
-            this.count = count;
-        }
-
-        @Override
-        public int compareTo(TimedAction that) {
-            int result = execTime.compareTo(that.execTime);
-            if (result == 0) {
-                return compare(count, that.count);
-            }
-            return result;
-        }
-    }
-
-    // because I can't use Integer.compare from Java 7
-    static int compare(int x, int y) {
-        return (x < y) ? -1 : ((x == y) ? 0 : 1);
-    }
-
 }
diff --git a/src/test/java/rx/schedulers/ExecutorSchedulerTest.java b/src/test/java/rx/internal/schedulers/ExecutorSchedulerTest.java
similarity index 70%
rename from src/test/java/rx/schedulers/ExecutorSchedulerTest.java
rename to src/test/java/rx/internal/schedulers/ExecutorSchedulerTest.java
index ed4e03213d..fad2435ce1 100644
--- a/src/test/java/rx/schedulers/ExecutorSchedulerTest.java
+++ b/src/test/java/rx/internal/schedulers/ExecutorSchedulerTest.java
@@ -13,22 +13,21 @@
  * License for the specific language governing permissions and limitations under
  * the License.
  */
-package rx.schedulers;
+package rx.internal.schedulers;
 
 import static org.junit.Assert.*;
 
-import java.lang.management.*;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
-
 import org.junit.Test;
-
 import rx.*;
 import rx.Scheduler.Worker;
 import rx.functions.*;
-import rx.internal.schedulers.NewThreadWorker;
+import rx.internal.schedulers.ExecutorScheduler.ExecutorSchedulerWorker;
 import rx.internal.util.RxThreadFactory;
-import rx.schedulers.ExecutorScheduler.ExecutorSchedulerWorker;
+import rx.schedulers.AbstractSchedulerConcurrencyTests;
+import rx.schedulers.SchedulerTests;
+import rx.schedulers.Schedulers;
 
 public class ExecutorSchedulerTest extends AbstractSchedulerConcurrencyTests {
 
@@ -49,72 +48,6 @@ public final void testHandledErrorIsNotDeliveredToThreadHandler() throws Interru
         SchedulerTests.testHandledErrorIsNotDeliveredToThreadHandler(getScheduler());
     }
     
-    public static void testCancelledRetention(Scheduler.Worker w, boolean periodic) throws InterruptedException {
-        System.out.println("Wait before GC");
-        Thread.sleep(1000);
-        
-        System.out.println("GC");
-        System.gc();
-        
-        Thread.sleep(1000);
-
-        
-        MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
-        MemoryUsage memHeap = memoryMXBean.getHeapMemoryUsage();
-        long initial = memHeap.getUsed();
-        
-        System.out.printf("Starting: %.3f MB%n", initial / 1024.0 / 1024.0);
-
-        int n = 500 * 1000;
-        if (periodic) {
-            final CountDownLatch cdl = new CountDownLatch(n);
-            final Action0 action = new Action0() {
-                @Override
-                public void call() {
-                    cdl.countDown();
-                }
-            };
-            for (int i = 0; i < n; i++) {
-                if (i % 50000 == 0) {
-                    System.out.println("  -> still scheduling: " + i);
-                }
-                w.schedulePeriodically(action, 0, 1, TimeUnit.DAYS);
-            }
-            
-            System.out.println("Waiting for the first round to finish...");
-            cdl.await();
-        } else {
-            for (int i = 0; i < n; i++) {
-                if (i % 50000 == 0) {
-                    System.out.println("  -> still scheduling: " + i);
-                }
-                w.schedule(Actions.empty(), 1, TimeUnit.DAYS);
-            }
-        }
-        
-        memHeap = memoryMXBean.getHeapMemoryUsage();
-        long after = memHeap.getUsed();
-        System.out.printf("Peak: %.3f MB%n", after / 1024.0 / 1024.0);
-        
-        w.unsubscribe();
-        
-        System.out.println("Wait before second GC");
-        Thread.sleep(NewThreadWorker.PURGE_FREQUENCY + 2000);
-        
-        System.out.println("Second GC");
-        System.gc();
-        
-        Thread.sleep(1000);
-        
-        memHeap = memoryMXBean.getHeapMemoryUsage();
-        long finish = memHeap.getUsed();
-        System.out.printf("After: %.3f MB%n", finish / 1024.0 / 1024.0);
-        
-        if (finish > initial * 5) {
-            fail(String.format("Tasks retained: %.3f -> %.3f -> %.3f", initial / 1024 / 1024.0, after / 1024 / 1024.0, finish / 1024 / 1024d));
-        }
-    }
-    
     @Test(timeout = 30000)
     public void testCancelledTaskRetention() throws InterruptedException {
         ExecutorService exec = Executors.newSingleThreadExecutor();
@@ -122,14 +55,14 @@ public void testCancelledTaskRetention() throws InterruptedException {
         try {
             Scheduler.Worker w = s.createWorker();
             try {
-                testCancelledRetention(w, false);
+                SchedulerTests.testCancelledRetention(w, false);
             } finally {
                 w.unsubscribe();
             }
             
             w = s.createWorker();
             try {
-                testCancelledRetention(w, true);
+                SchedulerTests.testCancelledRetention(w, true);
             } finally {
                 w.unsubscribe();
             }
diff --git a/src/test/java/rx/schedulers/ComputationSchedulerTests.java b/src/test/java/rx/schedulers/ComputationSchedulerTests.java
index 7191f60015..7e9163e7c0 100644
--- a/src/test/java/rx/schedulers/ComputationSchedulerTests.java
+++ b/src/test/java/rx/schedulers/ComputationSchedulerTests.java
@@ -157,13 +157,13 @@ public final void testHandledErrorIsNotDeliveredToThreadHandler() throws Interru
     public void testCancelledTaskRetention() throws InterruptedException {
         Worker w = Schedulers.computation().createWorker();
         try {
-            ExecutorSchedulerTest.testCancelledRetention(w, false);
+            SchedulerTests.testCancelledRetention(w, false);
         } finally {
             w.unsubscribe();
         }
         w = Schedulers.computation().createWorker();
         try {
-            ExecutorSchedulerTest.testCancelledRetention(w, true);
+            SchedulerTests.testCancelledRetention(w, true);
         } finally {
             w.unsubscribe();
         }
diff --git a/src/test/java/rx/schedulers/CachedThreadSchedulerTest.java b/src/test/java/rx/schedulers/IoSchedulerTest.java
similarity index 91%
rename from src/test/java/rx/schedulers/CachedThreadSchedulerTest.java
rename to src/test/java/rx/schedulers/IoSchedulerTest.java
index 9abb52b7ec..a16a19a61c 100644
--- a/src/test/java/rx/schedulers/CachedThreadSchedulerTest.java
+++ b/src/test/java/rx/schedulers/IoSchedulerTest.java
@@ -24,7 +24,7 @@
 import rx.Scheduler.Worker;
 import rx.functions.*;
 
-public class CachedThreadSchedulerTest extends AbstractSchedulerConcurrencyTests {
+public class IoSchedulerTest extends AbstractSchedulerConcurrencyTests {
 
     @Override
     protected Scheduler getScheduler() {
@@ -71,16 +71,16 @@ public final void testHandledErrorIsNotDeliveredToThreadHandler() throws Interru
     public void testCancelledTaskRetention() throws InterruptedException {
         Worker w = Schedulers.io().createWorker();
         try {
-            ExecutorSchedulerTest.testCancelledRetention(w, false);
+            SchedulerTests.testCancelledRetention(w, false);
         } finally {
             w.unsubscribe();
         }
         w = Schedulers.io().createWorker();
         try {
-            ExecutorSchedulerTest.testCancelledRetention(w, true);
+            SchedulerTests.testCancelledRetention(w, true);
         } finally {
             w.unsubscribe();
         }
     }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/rx/schedulers/SchedulerTests.java b/src/test/java/rx/schedulers/SchedulerTests.java
index a9146fafde..cd1d0a1912 100644
--- a/src/test/java/rx/schedulers/SchedulerTests.java
+++ b/src/test/java/rx/schedulers/SchedulerTests.java
@@ -4,14 +4,20 @@
 import rx.Observable;
 import rx.Observer;
 import rx.Scheduler;
+import rx.functions.Action0;
+import rx.functions.Actions;
+import rx.internal.schedulers.NewThreadWorker;
 
+import java.lang.management.ManagementFactory;
+import java.lang.management.MemoryMXBean;
+import java.lang.management.MemoryUsage;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 
-final class SchedulerTests {
+public final class SchedulerTests {
     private SchedulerTests() {
         // No instances.
     }
@@ -23,7 +29,7 @@ private SchedulerTests() {
      * Schedulers which execute on a separate thread from their calling thread should exhibit this behavior. Schedulers
      * which execute on their calling thread may not.
      */
-    static void testUnhandledErrorIsDeliveredToThreadHandler(Scheduler scheduler) throws InterruptedException {
+    public static void testUnhandledErrorIsDeliveredToThreadHandler(Scheduler scheduler) throws InterruptedException {
         Thread.UncaughtExceptionHandler originalHandler = Thread.getDefaultUncaughtExceptionHandler();
         try {
             CapturingUncaughtExceptionHandler handler = new CapturingUncaughtExceptionHandler();
@@ -57,7 +63,7 @@ static void testUnhandledErrorIsDeliveredToThreadHandler(Scheduler scheduler) th
      * This is a companion test to {@link #testUnhandledErrorIsDeliveredToThreadHandler}, and is needed only for the
      * same Schedulers.
      */
-    static void testHandledErrorIsNotDeliveredToThreadHandler(Scheduler scheduler) throws InterruptedException {
+    public static void testHandledErrorIsNotDeliveredToThreadHandler(Scheduler scheduler) throws InterruptedException {
         Thread.UncaughtExceptionHandler originalHandler = Thread.getDefaultUncaughtExceptionHandler();
         try {
             CapturingUncaughtExceptionHandler handler = new CapturingUncaughtExceptionHandler();
@@ -88,6 +94,72 @@ static void testHandledErrorIsNotDeliveredToThreadHandler(Scheduler scheduler) t
         }
     }
 
+    public static void testCancelledRetention(Scheduler.Worker w, boolean periodic) throws InterruptedException {
+        System.out.println("Wait before GC");
+        Thread.sleep(1000);
+
+        System.out.println("GC");
+        System.gc();
+
+        Thread.sleep(1000);
+
+
+        MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
+        MemoryUsage memHeap = memoryMXBean.getHeapMemoryUsage();
+        long initial = memHeap.getUsed();
+
+        System.out.printf("Starting: %.3f MB%n", initial / 1024.0 / 1024.0);
+
+        int n = 500 * 1000;
+        if (periodic) {
+            final CountDownLatch cdl = new CountDownLatch(n);
+            final Action0 action = new Action0() {
+                @Override
+                public void call() {
+                    cdl.countDown();
+                }
+            };
+            for (int i = 0; i < n; i++) {
+                if (i % 50000 == 0) {
+                    System.out.println("  -> still scheduling: " + i);
+                }
+                w.schedulePeriodically(action, 0, 1, TimeUnit.DAYS);
+            }
+
+            System.out.println("Waiting for the first round to finish...");
+            cdl.await();
+        } else {
+            for (int i = 0; i < n; i++) {
+                if (i % 50000 == 0) {
+                    System.out.println("  -> still scheduling: " + i);
+                }
+                w.schedule(Actions.empty(), 1, TimeUnit.DAYS);
+            }
+        }
+
+        memHeap = memoryMXBean.getHeapMemoryUsage();
+        long after = memHeap.getUsed();
+        System.out.printf("Peak: %.3f MB%n", after / 1024.0 / 1024.0);
+
+        w.unsubscribe();
+
+        System.out.println("Wait before second GC");
+        Thread.sleep(NewThreadWorker.PURGE_FREQUENCY + 2000);
+
+        System.out.println("Second GC");
+        System.gc();
+
+        Thread.sleep(1000);
+
+        memHeap = memoryMXBean.getHeapMemoryUsage();
+        long finish = memHeap.getUsed();
+        System.out.printf("After: %.3f MB%n", finish / 1024.0 / 1024.0);
+
+        if (finish > initial * 5) {
+            fail(String.format("Tasks retained: %.3f -> %.3f -> %.3f", initial / 1024 / 1024.0, after / 1024 / 1024.0, finish / 1024 / 1024d));
+        }
+    }
+
     private static final class CapturingObserver implements Observer {
         CountDownLatch completed = new CountDownLatch(1);
         int errorCount = 0;

From 3f6c4fd164801fd994034f99e663dc17163617c9 Mon Sep 17 00:00:00 2001
From: David Karnok 
Date: Thu, 21 Apr 2016 21:58:08 +0200
Subject: [PATCH 030/294] 1.x: fix from(Iterable) error handling of
 Iterable/Iterator (#3862)

* 1.x: fix from(Iterable) error handling of Iterable/Iterator

* Check dead-on-arrival Subscribers

* Use n again to avoid a potential cache-miss with get()
---
 .../operators/OnSubscribeFromIterable.java    | 130 +++++++---
 .../OnSubscribeFromIterableTest.java          | 244 +++++++++++++++++-
 2 files changed, 325 insertions(+), 49 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OnSubscribeFromIterable.java b/src/main/java/rx/internal/operators/OnSubscribeFromIterable.java
index b94e35c35c..9389c4480c 100644
--- a/src/main/java/rx/internal/operators/OnSubscribeFromIterable.java
+++ b/src/main/java/rx/internal/operators/OnSubscribeFromIterable.java
@@ -20,6 +20,7 @@
 
 import rx.*;
 import rx.Observable.OnSubscribe;
+import rx.exceptions.Exceptions;
 
 /**
  * Converts an {@code Iterable} sequence into an {@code Observable}.
@@ -42,11 +43,25 @@ public OnSubscribeFromIterable(Iterable iterable) {
 
     @Override
     public void call(final Subscriber o) {
-        final Iterator it = is.iterator();
-        if (!it.hasNext() && !o.isUnsubscribed())
-            o.onCompleted();
-        else 
-            o.setProducer(new IterableProducer(o, it));
+        final Iterator it;
+        boolean b;
+        
+        try {
+            it = is.iterator();
+            
+            b = it.hasNext();
+        } catch (Throwable ex) {
+            Exceptions.throwOrReport(ex, o);
+            return;
+        }
+            
+        if (!o.isUnsubscribed()) {
+            if (!b) {
+                o.onCompleted();
+            } else { 
+                o.setProducer(new IterableProducer(o, it));
+            }
+        }
     }
 
     private static final class IterableProducer extends AtomicLong implements Producer {
@@ -81,38 +96,58 @@ void slowpath(long n) {
             final Iterator it = this.it;
 
             long r = n;
-            while (true) {
-                /*
-                 * This complicated logic is done to avoid touching the
-                 * volatile `requested` value during the loop itself. If
-                 * it is touched during the loop the performance is
-                 * impacted significantly.
-                 */
-                long numToEmit = r;
-                while (true) {
+            long e = 0;
+            
+            for (;;) {
+                while (e != r) {
                     if (o.isUnsubscribed()) {
                         return;
-                    } else if (it.hasNext()) {
-                        if (--numToEmit >= 0) {
-                            o.onNext(it.next());
-                        } else
-                            break;
-                    } else if (!o.isUnsubscribed()) {
-                        o.onCompleted();
+                    }
+                    
+                    T value;
+                    
+                    try {
+                        value = it.next();
+                    } catch (Throwable ex) {
+                        Exceptions.throwOrReport(ex, o);
                         return;
-                    } else {
-                        // is unsubscribed
+                    }
+                    
+                    o.onNext(value);
+
+                    if (o.isUnsubscribed()) {
                         return;
                     }
+
+                    boolean b;
+                    
+                    try {
+                        b = it.hasNext();
+                    } catch (Throwable ex) {
+                        Exceptions.throwOrReport(ex, o);
+                        return;
+                    }
+                    
+                    if (!b) {
+                        if (!o.isUnsubscribed()) {
+                            o.onCompleted();
+                        }
+                        return;
+                    }
+                    
+                    e++;
                 }
-                r = addAndGet(-r);
-                if (r == 0L) {
-                    // we're done emitting the number requested so
-                    // return
-                    return;
+                
+                r = get();
+                if (e == r) {
+                    r = BackpressureUtils.produced(this, e);
+                    if (r == 0L) {
+                        break;
+                    }
+                    e = 0L;
                 }
-
             }
+            
         }
 
         void fastpath() {
@@ -120,16 +155,39 @@ void fastpath() {
             final Subscriber o = this.o;
             final Iterator it = this.it;
 
-            while (true) {
+            for (;;) {
                 if (o.isUnsubscribed()) {
                     return;
-                } else if (it.hasNext()) {
-                    o.onNext(it.next());
-                } else if (!o.isUnsubscribed()) {
-                    o.onCompleted();
+                }
+                
+                T value;
+
+                try {
+                    value = it.next();
+                } catch (Throwable ex) {
+                    Exceptions.throwOrReport(ex, o);
+                    return;
+                }
+                
+                o.onNext(value);
+
+                if (o.isUnsubscribed()) {
                     return;
-                } else {
-                    // is unsubscribed
+                }
+
+                boolean b;
+
+                try {
+                    b  = it.hasNext();
+                } catch (Throwable ex) {
+                    Exceptions.throwOrReport(ex, o);
+                    return;
+                }
+
+                if (!b) {
+                    if (!o.isUnsubscribed()) {
+                        o.onCompleted();
+                    }
                     return;
                 }
             }
diff --git a/src/test/java/rx/internal/operators/OnSubscribeFromIterableTest.java b/src/test/java/rx/internal/operators/OnSubscribeFromIterableTest.java
index a75e733951..00956b9cae 100644
--- a/src/test/java/rx/internal/operators/OnSubscribeFromIterableTest.java
+++ b/src/test/java/rx/internal/operators/OnSubscribeFromIterableTest.java
@@ -15,28 +15,21 @@
  */
 package rx.internal.operators;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.*;
 import static org.mockito.Matchers.any;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
+import static org.mockito.Mockito.*;
+
+import java.util.*;
+import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import org.junit.Assert;
 import org.junit.Test;
 import org.mockito.Mockito;
 
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
+import rx.exceptions.TestException;
 import rx.internal.util.RxRingBuffer;
 import rx.observers.TestSubscriber;
 import rx.schedulers.Schedulers;
@@ -313,5 +306,230 @@ public void onNext(Integer t) {
         });
         assertFalse(called.get());
     }
+
+    @Test
+    public void getIteratorThrows() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                throw new TestException("Forced failure");
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertError(TestException.class);
+        ts.assertNotCompleted();
+    }
+
+    @Test
+    public void hasNextThrowsImmediately() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                return new Iterator() {
+                    @Override
+                    public boolean hasNext() {
+                        throw new TestException("Forced failure");
+                    }
+                    
+                    @Override
+                    public Integer next() {
+                        return null;
+                    }
+                    
+                    @Override
+                    public void remove() {
+                        // ignored
+                    }
+                };
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertError(TestException.class);
+        ts.assertNotCompleted();
+    }
+
+    @Test
+    public void hasNextThrowsSecondTimeFastpath() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                return new Iterator() {
+                    int count;
+                    @Override
+                    public boolean hasNext() {
+                        if (++count >= 2) {
+                            throw new TestException("Forced failure");
+                        }
+                        return true;
+                    }
+                    
+                    @Override
+                    public Integer next() {
+                        return 1;
+                    }
+                    
+                    @Override
+                    public void remove() {
+                        // ignored
+                    }
+                };
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertValues(1);
+        ts.assertError(TestException.class);
+        ts.assertNotCompleted();
+    }
+
+    @Test
+    public void hasNextThrowsSecondTimeSlowpath() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                return new Iterator() {
+                    int count;
+                    @Override
+                    public boolean hasNext() {
+                        if (++count >= 2) {
+                            throw new TestException("Forced failure");
+                        }
+                        return true;
+                    }
+                    
+                    @Override
+                    public Integer next() {
+                        return 1;
+                    }
+                    
+                    @Override
+                    public void remove() {
+                        // ignored
+                    }
+                };
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber(5);
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertValues(1);
+        ts.assertError(TestException.class);
+        ts.assertNotCompleted();
+    }
     
+    @Test
+    public void nextThrowsFastpath() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                return new Iterator() {
+                    @Override
+                    public boolean hasNext() {
+                        return true;
+                    }
+                    
+                    @Override
+                    public Integer next() {
+                        throw new TestException("Forced failure");
+                    }
+                    
+                    @Override
+                    public void remove() {
+                        // ignored
+                    }
+                };
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber();
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertError(TestException.class);
+        ts.assertNotCompleted();
+    }
+
+    @Test
+    public void nextThrowsSlowpath() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                return new Iterator() {
+                    @Override
+                    public boolean hasNext() {
+                        return true;
+                    }
+                    
+                    @Override
+                    public Integer next() {
+                        throw new TestException("Forced failure");
+                    }
+                    
+                    @Override
+                    public void remove() {
+                        // ignored
+                    }
+                };
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber(5);
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertError(TestException.class);
+        ts.assertNotCompleted();
+    }
+
+    @Test
+    public void deadOnArrival() {
+        Iterable it = new Iterable() {
+            @Override
+            public Iterator iterator() {
+                return new Iterator() {
+                    @Override
+                    public boolean hasNext() {
+                        return false;
+                    }
+                    
+                    @Override
+                    public Integer next() {
+                        throw new NoSuchElementException();
+                    }
+                    
+                    @Override
+                    public void remove() {
+                        // ignored
+                    }
+                };
+            }
+        };
+        
+        TestSubscriber ts = new TestSubscriber(5);
+        ts.unsubscribe();
+        
+        Observable.from(it).unsafeSubscribe(ts);
+        
+        ts.assertNoValues();
+        ts.assertNoErrors();
+        ts.assertNotCompleted();
+        
+    }
 }

From 7b11b1c5e47e22c9f24fc0ee5c3c9e89bb091903 Mon Sep 17 00:00:00 2001
From: Dave Moten 
Date: Sat, 23 Apr 2016 08:45:04 +1000
Subject: [PATCH 031/294] remove unused field baseCapacity (#3874)

---
 .../rx/internal/operators/OperatorOnBackpressureBuffer.java     | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/main/java/rx/internal/operators/OperatorOnBackpressureBuffer.java b/src/main/java/rx/internal/operators/OperatorOnBackpressureBuffer.java
index 4f66bbb4d7..04e6e81be9 100644
--- a/src/main/java/rx/internal/operators/OperatorOnBackpressureBuffer.java
+++ b/src/main/java/rx/internal/operators/OperatorOnBackpressureBuffer.java
@@ -110,7 +110,6 @@ public Subscriber call(final Subscriber child) {
     private static final class BufferSubscriber extends Subscriber implements BackpressureDrainManager.BackpressureQueueCallback {
         // TODO get a different queue implementation
         private final ConcurrentLinkedQueue queue = new ConcurrentLinkedQueue();
-        private final Long baseCapacity;
         private final AtomicLong capacity;
         private final Subscriber child;
         private final AtomicBoolean saturated = new AtomicBoolean(false);
@@ -122,7 +121,6 @@ private static final class BufferSubscriber extends Subscriber implements
         public BufferSubscriber(final Subscriber child, Long capacity, Action0 onOverflow,
                                 BackpressureOverflow.Strategy overflowStrategy) {
             this.child = child;
-            this.baseCapacity = capacity;
             this.capacity = capacity != null ? new AtomicLong(capacity) : null;
             this.onOverflow = onOverflow;
             this.manager = new BackpressureDrainManager(this);

From 9b0887017a09e3c1ee7e9c2df066d8b2da30db48 Mon Sep 17 00:00:00 2001
From: Daniel Lew 
Date: Fri, 29 Apr 2016 00:56:57 -0500
Subject: [PATCH 032/294] throwIfFatal() now throws OnCompletedFailedException
 (#3886)

Otherwise, if there's an error in onCompleted, the exception is
swallowed and unreported.
---
 src/main/java/rx/exceptions/Exceptions.java   |  3 +++
 .../java/rx/exceptions/ExceptionsTest.java    | 22 +++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/src/main/java/rx/exceptions/Exceptions.java b/src/main/java/rx/exceptions/Exceptions.java
index 6c37167c3e..f427018f53 100644
--- a/src/main/java/rx/exceptions/Exceptions.java
+++ b/src/main/java/rx/exceptions/Exceptions.java
@@ -61,6 +61,7 @@ public static RuntimeException propagate(Throwable t) {
      *