[jbosstools-issues] [JBoss JIRA] (JBIDE-18069) Exception occurred in listener of Java element change notification

[Xavier Coulon (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-18069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12993771#comment-12993771 ] 

Xavier Coulon commented on JBIDE-18069:
---------------------------------------

hello [~gastaldi],

I opened https://bugs.eclipse.org/bugs/show_bug.cgi?id=442015 so that we can track this problem.

> Exception occurred in listener of Java element change notification
> ------------------------------------------------------------------
>
>                 Key: JBIDE-18069
>                 URL: https://issues.jboss.org/browse/JBIDE-18069
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: forge
>    Affects Versions: 4.2.0.Beta3
>            Reporter: Xavier Coulon
>              Labels: upstream
>
> Following Ticket Monster example (http://www.jboss.org/ticket-monster/introduction/), I created an {{Event}} entity from Forge wizard. I got the following error in the Log when (or just after) the notification bubble appeared:
> {code}
> java.lang.NullPointerException
> 	at org.eclipse.jpt.jpa.core.internal.AbstractJpaProject.compilationUnitResourceExists(AbstractJpaProject.java:1436)
> 	at org.eclipse.jpt.jpa.core.internal.AbstractJpaProject.javaCompilationUnitDeltaIsRelevant(AbstractJpaProject.java:1425)
> 	at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.javaCompilationUnitDeltaIsRelevant(InternalJpaProjectManager.java:1006)
> 	at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.handleJavaCompilationUnitDelta(InternalJpaProjectManager.java:998)
> 	at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.handleJavaDelta(InternalJpaProjectManager.java:933)
> 	at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.handleJavaElementChangedEvent(InternalJpaProjectManager.java:916)
> 	at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.javaElementChanged(InternalJpaProjectManager.java:859)
> 	at org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager$JavaElementChangeListener.elementChanged(InternalJpaProjectManager.java:1389)
> 	at org.eclipse.jdt.internal.core.DeltaProcessor$4.run(DeltaProcessor.java:1695)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.jdt.internal.core.DeltaProcessor.notifyListeners(DeltaProcessor.java:1685)
> 	at org.eclipse.jdt.internal.core.DeltaProcessor.fireReconcileDelta(DeltaProcessor.java:1537)
> 	at org.eclipse.jdt.internal.core.DeltaProcessor.fire(DeltaProcessor.java:1496)
> 	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:770)
> 	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:789)
> 	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1269)
> 	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:126)
> 	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:108)
> 	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:89)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:87)
> 	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.initialReconcile(JavaReconcilingStrategy.java:178)
> 	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.initialReconcile(CompositeReconcilingStrategy.java:114)
> 	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.initialReconcile(JavaCompositeReconcilingStrategy.java:141)
> 	at org.eclipse.jface.text.reconciler.MonoReconciler.initialProcess(MonoReconciler.java:105)
> 	at org.eclipse.jdt.internal.ui.text.JavaReconciler.initialProcess(JavaReconciler.java:406)
> 	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:173)
> {code}
> Not sure if it's related to Forge or Eclipse JPA tooling (in which case, it would be an upstream bug, I guess).



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