[BAEL-4056] Guide to MultipleBagFetchException (eugenp#10304)

emyasa · web-flow · commit bb74502aa55e · 2020-12-04T18:44:40.000-08:00
* Removes DummyEntity
* Uses Artist Entity instead of DummyEntity
diff --git a/persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/multiplebagfetchexception/DummyEntity.java b/persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/multiplebagfetchexception/DummyEntity.java
diff --git a/persistence-modules/java-jpa-3/src/main/resources/META-INF/persistence.xml b/persistence-modules/java-jpa-3/src/main/resources/META-INF/persistence.xml
@@ -57,7 +57,6 @@
     </persistence-unit>
     <persistence-unit name="jpa-h2-multiple-bag-fetch-exception">
         <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
-        <class>com.baeldung.jpa.multiplebagfetchexception.DummyEntity</class>
         <class>com.baeldung.jpa.multiplebagfetchexception.Album</class>
         <class>com.baeldung.jpa.multiplebagfetchexception.Song</class>
         <class>com.baeldung.jpa.multiplebagfetchexception.User</class>
diff --git a/persistence-modules/java-jpa-3/src/test/java/com/baeldung/jpa/multiplebagfetchexception/MultipleBagFetchExceptionIntegrationTest.java b/persistence-modules/java-jpa-3/src/test/java/com/baeldung/jpa/multiplebagfetchexception/MultipleBagFetchExceptionIntegrationTest.java
@@ -29,9 +29,9 @@ public static void setup() {
     public void whenFetchingMoreThanOneBag_thenThrowAnException() {
         IllegalArgumentException exception =
           assertThrows(IllegalArgumentException.class, () -> {
-            String jpql = "SELECT dummy FROM DummyEntity dummy "
-              + "JOIN FETCH dummy.collection1 "
-              + "JOIN FETCH dummy.collection2 ";
+            String jpql = "SELECT artist FROM Artist artist "
+              + "JOIN FETCH artist.songs "
+              + "JOIN FETCH artist.offers ";
 
             entityManager.createQuery(jpql);
         });
