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Bug 321030 - NPE starting workbench
Summary: NPE starting workbench
Status: VERIFIED FIXED
Alias: None
Product: PDE
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 3.6   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: 3.7 M1   Edit
Assignee: Curtis Windatt CLA
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Reported: 2010-07-27 11:02 EDT by Michael Rennie CLA
Modified: 2010-08-04 12:01 EDT (History)
2 users (show)

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Description Michael Rennie CLA 2010-07-27 11:02:24 EDT 
build: I20100720-0800

Started my workbench this morning and was met with the following NPE. Sorry no additional steps to reproduce.

java.lang.NullPointerException
at org.eclipse.pde.internal.core.WorkspacePluginModelManager.handleFileDelta(WorkspacePluginModelManager.java:124)
at org.eclipse.pde.internal.core.WorkspaceModelManager.visit(WorkspaceModelManager.java:160)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:68)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:79)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:79)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:79)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:79)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:48)
at org.eclipse.pde.internal.core.WorkspaceModelManager.handleResourceDelta(WorkspaceModelManager.java:125)
at org.eclipse.pde.internal.core.WorkspaceModelManager.resourceChanged(WorkspaceModelManager.java:113)
at org.eclipse.jdt.internal.core.DeltaProcessingState$1.run(DeltaProcessingState.java:465)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:460)
at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:291)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:327)
at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1181)
at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:45)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Comment 1 Michael Rennie CLA 2010-07-27 11:03:21 EDT 
The root message of the exception is:

"Exception occurred in listener of pre Java resource change notification"
Comment 2 Curtis Windatt CLA 2010-07-27 12:03:55 EDT 
Somehow there was a change to a localization file for which we couldn't find a plugin model for.  Either there was a project that isn't a pde project that just happened to have the correct localization directory structure or something else caused the model lookup to fail.

I cleaned up the logic a bit and added a null check.  Fixed in HEAD.
Comment 3 Curtis Windatt CLA 2010-08-04 12:01:39 EDT 
Verified the check is in I20100804-0100