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Bug 326103 - NPE when comparing two projects
Summary: NPE when comparing two projects
Status: RESOLVED FIXED
Alias: None
Product: Platform
Classification: Eclipse Project
Component: Compare (show other bugs)
Version: 3.6   Edit
Hardware: All All
: P3 normal (vote)
Target Milestone: 4.9 M2   Edit
Assignee: Mykola Nikishov CLA
QA Contact:
URL:
Whiteboard:
Keywords:
: 399785 403699 404862 (view as bug list)
Depends on:
Blocks:
 
Reported: 2010-09-23 16:42 EDT by Andrew Eisenberg CLA
Modified: 2018-07-09 09:22 EDT (History)
6 users (show)

See Also:

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Description Andrew Eisenberg CLA 2010-09-23 16:42:31 EDT 
I received this NPE when comparing two projects with the Find/replace dialog open.  This occurred when I clicked in the top pane of the compare editor.  

Unfortunately, I can't reproduce the exception now.

java.lang.NullPointerException
	at org.eclipse.compare.contentmergeviewer.TextMergeViewer$FindReplaceTarget.isEditable(TextMergeViewer.java:1351)
	at org.eclipse.ui.texteditor.FindReplaceAction$FindReplaceDialogStub.partActivated(FindReplaceAction.java:126)
	at org.eclipse.ui.texteditor.FindReplaceAction$FindReplaceDialogStub.partActivated(FindReplaceAction.java:136)
	at org.eclipse.ui.internal.PartListenerList2$1.run(PartListenerList2.java:70)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at org.eclipse.ui.internal.PartListenerList2.fireEvent(PartListenerList2.java:55)
	at org.eclipse.ui.internal.PartListenerList2.firePartActivated(PartListenerList2.java:68)
	at org.eclipse.ui.internal.PartService.firePartActivated(PartService.java:192)
	at org.eclipse.ui.internal.PartService.setActivePart(PartService.java:306)
	at org.eclipse.ui.internal.WWinPartService.updateActivePart(WWinPartService.java:135)
	at org.eclipse.ui.internal.WWinPartService.access$0(WWinPartService.java:125)
	at org.eclipse.ui.internal.WWinPartService$WWinListener.partDeactivated(WWinPartService.java:50)
	at org.eclipse.ui.internal.PartListenerList2$4.run(PartListenerList2.java:115)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at org.eclipse.ui.internal.PartListenerList2.fireEvent(PartListenerList2.java:55)
	at org.eclipse.ui.internal.PartListenerList2.firePartDeactivated(PartListenerList2.java:113)
	at org.eclipse.ui.internal.PartService.firePartDeactivated(PartService.java:242)
	at org.eclipse.ui.internal.PartService.setActivePart(PartService.java:300)
	at org.eclipse.ui.internal.WorkbenchPagePartList.fireActivePartChanged(WorkbenchPagePartList.java:57)
	at org.eclipse.ui.internal.PartList.setActivePart(PartList.java:136)
	at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3537)
	at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3077)
	at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279)
	at org.eclipse.ui.internal.EditorPane.requestActivation(EditorPane.java:98)
	at org.eclipse.ui.internal.PartPane.handleEvent(PartPane.java:237)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1660)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1684)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1665)
	at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1558)
	at org.eclipse.swt.widgets.Control.kEventMouseDown(Control.java:2183)
	at org.eclipse.swt.widgets.Composite.kEventMouseDown(Composite.java:590)
	at org.eclipse.swt.widgets.Tree.kEventMouseDown(Tree.java:2650)
	at org.eclipse.swt.widgets.Widget.mouseProc(Widget.java:1378)
	at org.eclipse.swt.widgets.Display.mouseProc(Display.java:3087)
	at org.eclipse.swt.internal.carbon.OS.SendEventToEventTarget(Native Method)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3210)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	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:369)
	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:592)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
Comment 1 Eve Ser CLA 2012-09-13 04:52:23 EDT 
Get the same (reproducable) error/stacktrace with these steps:

* open find/replace dialog (ctrl+F)
* open history view
* right click on a file > compare with previous state
= error, and comparison-window opens, but does not show any differences

error does not appear, when the find/replace dialog is closed.


windows 7sp1, 64bit
eclipse-jee-juno-win32-x86_64
Build id: 20120614-1722
java.version=1.6.0_33
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.vm.version=20.8-b03
Comment 2 Bruce Collie CLA 2012-10-16 06:44:05 EDT 
With Juno I get the same (but slightly different stack trace) whenever I do a Team->Diff File(s) against Depot.   In this case its a Perforce depot, but have seen it with a subversion depot as well.

java.lang.NullPointerException
	at org.eclipse.compare.contentmergeviewer.TextMergeViewer$FindReplaceTarget.isEditable(TextMergeViewer.java:1351)
	at org.eclipse.ui.texteditor.FindReplaceAction$FindReplaceDialogStub.partActivated(FindReplaceAction.java:126)
	at org.eclipse.ui.texteditor.FindReplaceAction$FindReplaceDialogStub.partActivated(FindReplaceAction.java:136)
	at org.eclipse.ui.internal.PartService$6.run(PartService.java:131)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PartService.partActivated(PartService.java:129)
	at org.eclipse.ui.internal.WorkbenchPage$12.run(WorkbenchPage.java:4327)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.WorkbenchPage.firePartActivated(WorkbenchPage.java:4325)
	at org.eclipse.ui.internal.WorkbenchPage.access$16(WorkbenchPage.java:4305)
	at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:170)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$2.run(PartServiceImpl.java:191)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:189)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.setPart(PartServiceImpl.java:164)
	at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
	at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:88)
	at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:107)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.processScheduled(EclipseContext.java:318)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.set(EclipseContext.java:332)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.activate(EclipseContext.java:630)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.activateBranch(EclipseContext.java:635)
	at org.eclipse.e4.ui.internal.workbench.PartActivationHistory.activate(PartActivationHistory.java:52)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:561)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:532)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:521)
	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3084)
	at org.eclipse.ui.internal.WorkbenchPage.access$22(WorkbenchPage.java:3003)
	at org.eclipse.ui.internal.WorkbenchPage$8.run(WorkbenchPage.java:2985)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2981)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2940)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2931)
	at org.eclipse.compare.internal.CompareUIPlugin$1.run(CompareUIPlugin.java:523)
	at org.eclipse.compare.internal.CompareUIPlugin.syncExec(CompareUIPlugin.java:1265)
	at org.eclipse.compare.internal.CompareUIPlugin.internalOpenEditor(CompareUIPlugin.java:534)
	at org.eclipse.compare.internal.CompareUIPlugin.openCompareEditor(CompareUIPlugin.java:496)
	at org.eclipse.compare.CompareUI.openCompareEditorOnPage(CompareUI.java:168)
	at org.eclipse.compare.CompareUI.openCompareEditor(CompareUI.java:137)
	at org.eclipse.compare.CompareUI.openCompareEditor(CompareUI.java:121)
	at com.perforce.team.ui.editor.CompareUtils$1.runInUIThread(CompareUtils.java:410)
	at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4144)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
	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:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
Comment 3 Dani Megert CLA 2013-02-04 08:34:08 EST 
*** Bug 399785 has been marked as a duplicate of this bug. ***
Comment 4 Andrey Loskutov CLA 2018-07-03 05:17:12 EDT 
*** Bug 404862 has been marked as a duplicate of this bug. ***
Comment 5 Andrey Loskutov CLA 2018-07-03 05:18:15 EDT 
*** Bug 403699 has been marked as a duplicate of this bug. ***
Comment 6 Eclipse Genie CLA 2018-07-03 05:29:14 EDT 
New Gerrit change created: https://git.eclipse.org/r/125382
Comment 7 Eclipse Genie CLA 2018-07-05 04:44:09 EDT 
New Gerrit change created: https://git.eclipse.org/r/125567
Comment 8 Eclipse Genie CLA 2018-07-05 05:02:01 EDT 
New Gerrit change created: https://git.eclipse.org/r/125569
Comment 10 Eclipse Genie CLA 2018-07-05 08:55:22 EDT 
New Gerrit change created: https://git.eclipse.org/r/125631
Comment 12 Andrey Loskutov CLA 2018-07-09 09:22:45 EDT 
Thanks Mykola!