[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-5980) Constantly get NPE when open JBDS workspace in Eclipse with WTP (+others) and then open it back in JBDS

[Vitali Yemialyanchyk (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBIDE-5980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12517924#action_12517924 ] 

Vitali Yemialyanchyk commented on JBIDE-5980:
---------------------------------------------

no - as I remember I have got exception only in JDBS.
moreover - this exception is difficult to reproduce too - before try to identify exact steps - I get it constantly in JDBS -
I close all editors - and repeate the steps which I describe and I can't get the exception - 
so it depends on some other steps which should be performed before these original which I describe to get the exception...
and I can't replicate key combination... it is rather complex pazzle

> Constantly get NPE when open JBDS workspace in Eclipse with WTP (+others) and then open it back in JBDS
> -------------------------------------------------------------------------------------------------------
>
>                 Key: JBIDE-5980
>                 URL: https://jira.jboss.org/jira/browse/JBIDE-5980
>             Project: Tools (JBoss Tools)
>          Issue Type: Sub-task
>    Affects Versions: 3.1.0.CR2
>            Reporter: Vitali Yemialyanchyk
>             Fix For: 3.1.1
>
>
> I open eclipse issue for this: https://bugs.eclipse.org/bugs/show_bug.cgi?id=304070
> stacktrace look like this:
> java.lang.NullPointerException 
> at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:280) 
> at org.eclipse.emf.common.notify.impl.NotifyingListImpl.dispatchNotification(NotifyingListImpl.java:267) 
> at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl$SynchronizedResourcesEList.dispatchNotification(ProjectResourceSetImpl.java:335) 
> at org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:300) 
> at org.eclipse.emf.common.util.AbstractEList.add(AbstractEList.java:307) 
> at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl$SynchronizedResourcesEList.add(ProjectResourceSetImpl.java:81) 
> at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.createResource(ProjectResourceSetImpl.java:392) 
> at org.eclipse.wst.common.internal.emfworkbench.integration.ProjectResourceSetEditImpl.createResource(ProjectResourceSetEditImpl.java:48) 
> at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandCreateResource(ResourceSetImpl.java:239) 
> at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.getResource(ProjectResourceSetImpl.java:693) 
> at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.getModelResource(JEE5ModelProvider.java:155) 
> at org.eclipse.jst.jee.model.internal.EAR5ModelProvider.getModelObject(EAR5ModelProvider.java:50) 
> at org.eclipse.jst.j2ee.project.EarUtilities.getEARLibDir(EarUtilities.java:372) 

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