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Bug 367010

Summary: NPE Synchronizing Workspace in M4
Product: [Technology] EGit Reporter: Ed Willink <ed>
Component: UIAssignee: Project Inbox <egit.ui-inbox>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: P3 CC: matthias.sohn, robin
Version: unspecified   
Target Milestone: 3.0   
Hardware: PC   
OS: Windows Vista   
Whiteboard:

Description Ed Willink CLA 2011-12-17 12:00:31 EST 
Using the M4 Modeling EPP, CVS, (no SVN) and either EGit 1.1 or 1.2, in a formerly M3 workspace with SVN, whenever I try to Synchronize an EGit project I get

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:4300)
	at org.eclipse.swt.SWT.error(SWT.java:4215)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:977)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:893)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:91)
	at org.eclipse.ui.internal.Workbench$3.run(Workbench.java:565)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:520)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:352)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:624)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:579)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1433)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1409)
Caused by: java.lang.NullPointerException
	at org.eclipse.ui.internal.Workbench.activate(Workbench.java:2505)
	at org.eclipse.ui.internal.Workbench.showPerspective(Workbench.java:2533)
	at org.eclipse.ui.internal.Workbench.showPerspective(Workbench.java:2498)
	at org.eclipse.team.internal.ui.synchronize.SynchronizeManager.showSynchronizeViewInActivePage(SynchronizeManager.java:461)
	at org.eclipse.team.internal.ui.synchronize.RefreshUserNotificationPolicy$1.run(RefreshUserNotificationPolicy.java:47)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	... 24 more
Comment 1 Robin Stocker CLA 2013-05-26 17:27:40 EDT 
Have you encountered this recently? Stack trace doesn't include any EGit code.
Comment 2 Ed Willink CLA 2013-05-27 02:15:14 EDT 
(In reply to comment #1)
> Have you encountered this recently? Stack trace doesn't include any EGit
> code.

The psoted stack trace is inde4ed useless, the SWT wrapper of an NPE somewhere.

RC1 (EGIT from staging): I just did Team -> Synchronie Workspace and got.

org.eclipse.team.core.TeamException: Error creating Synchronization Git:
	at org.eclipse.team.internal.ui.synchronize.SynchronizeManager$ParticipantInstance.instantiate(SynchronizeManager.java:253)
	at org.eclipse.team.internal.ui.synchronize.SynchronizeManager$ParticipantInstance.getParticipant(SynchronizeManager.java:217)
	at org.eclipse.team.internal.ui.synchronize.SynchronizeManager.removeMatchingParticipant(SynchronizeManager.java:370)
	at org.eclipse.team.internal.ui.synchronize.SynchronizeManager.addSynchronizeParticipants(SynchronizeManager.java:347)
	at org.eclipse.egit.ui.internal.synchronize.GitModelSynchronize$2.done(GitModelSynchronize.java:219)
	at org.eclipse.core.internal.jobs.JobListeners$3.notify(JobListeners.java:39)
	at org.eclipse.core.internal.jobs.JobListeners.doNotify(JobListeners.java:112)
	at org.eclipse.core.internal.jobs.JobListeners.done(JobListeners.java:152)
	at org.eclipse.core.internal.jobs.JobManager.endJob(JobManager.java:647)
	at org.eclipse.core.internal.jobs.WorkerPool.endJob(WorkerPool.java:105)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:70)
Caused by: java.lang.NullPointerException
	at org.eclipse.egit.ui.internal.synchronize.GitModelSynchronizeParticipant.getRepositoryForPath(GitModelSynchronizeParticipant.java:384)
	at org.eclipse.egit.ui.internal.synchronize.GitModelSynchronizeParticipant.restoreSynchronizationData(GitModelSynchronizeParticipant.java:358)
	at org.eclipse.egit.ui.internal.synchronize.GitModelSynchronizeParticipant.init(GitModelSynchronizeParticipant.java:327)
	at org.eclipse.team.internal.ui.synchronize.SynchronizeManager$ParticipantInstance.instantiate(SynchronizeManager.java:245)
	... 10 more
Comment 3 Robin Stocker CLA 2013-05-27 15:22:56 EDT 
Thanks for the updated stack trace, could locate the problem with it. Fix:

https://git.eclipse.org/r/13243
Comment 4 Matthias Sohn CLA 2013-05-28 12:02:43 EDT 
merged as 90b3969cd9afebd15ceb8ba592ddf01aeaeca051