2021-05-08_16:38:47.668 [XNIO-1 I/O-6] ERROR act.app.App - Block issue encountered
java.util.ConcurrentModificationException: null
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
	at java.util.ArrayList$Itr.next(ArrayList.java:859)
	at act.handler.builtin.controller.impl.ReflectedHandlerInvoker.initOutputVariables(ReflectedHandlerInvoker.java:1044)
	at act.handler.builtin.controller.impl.ReflectedHandlerInvoker.<init>(ReflectedHandlerInvoker.java:417)
	at act.handler.builtin.controller.impl.ReflectedHandlerInvoker.createControllerAction(ReflectedHandlerInvoker.java:1289)
	at act.Act$Mode.createRequestHandler(Act.java:164)
	at act.handler.builtin.controller.RequestHandlerProxy.generateHandlers(RequestHandlerProxy.java:450)
	at act.handler.builtin.controller.RequestHandlerProxy.ensureAgentsReady(RequestHandlerProxy.java:371)
	at act.handler.builtin.controller.RequestHandlerProxy.corsSpec(RequestHandlerProxy.java:567)
	at act.handler.DelegateRequestHandler.corsSpec(DelegateRequestHandler.java:71)
	at act.handler.OptionsInfoBase.createHandler(OptionsInfoBase.java:77)
	at act.handler.OptionsInfoBase.optionHandler(OptionsInfoBase.java:53)
	at act.route.Router.getInvoker(Router.java:250)
	at act.xio.NetworkHandler.handle(NetworkHandler.java:164)
	at act.xio.undertow.ActHttpHandler.handleRequest(ActHttpHandler.java:58)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:370)
	at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:255)
	at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136)
	at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:59)
	at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
	at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
	at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
	at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
2021-05-08_16:38:47.671 [Thread-9] INFO  act.app.App - Shutting down app [ZFW-Serve]....
2021-05-08_16:38:47.680 [Thread-9] DEBUG act.db.ebean.EbeanService - ebean shutdown: mysql
2021-05-08_16:38:47.680 [Thread-9] DEBUG act.db.ebean.EbeanService - ebean readonly shutdown: mysql
2021-05-08_16:38:47.695 [Thread-9] INFO  act.Act - All components shutdown, bye!