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In this case this happened as I changed to another git branch, but it occurred several times before, possibly under other cercainstances. I use Windows 8.1 and Eclipse for RCP and RAP Developers Luna M5, but it happened with Kepler also. -- Error Details -- Date: Thu Feb 13 10:24:45 CET 2014 Message: An internal error has occurred. Severity: Error Product: Eclipse 4.4.0.20140130-1633 (org.eclipse.epp.package.rcp.product) Plugin: org.eclipse.ui Session Data: eclipse.buildId=4.4.0.I20140123-1600 java.version=1.6.0_32-ea java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE Framework arguments: -product org.eclipse.epp.package.rcp.product Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.rcp.product Exception Stack Trace: java.lang.NullPointerException at org.eclipse.compare.internal.merge.DocumentMerger.doDiff(DocumentMerger.java:502) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.doDiff(TextMergeViewer.java:3386) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.update(TextMergeViewer.java:5259) at org.eclipse.compare.contentmergeviewer.TextMergeViewer$2.runInUIThread(TextMergeViewer.java:1053) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764) at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:174) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:389) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:513) at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275) at org.eclipse.ui.internal.progress.ProgressManager$3.run(ProgressManager.java:961) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:996) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:971) at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1167) at org.eclipse.compare.internal.CompareContainer.run(CompareContainer.java:80) at org.eclipse.compare.CompareEditorInput.run(CompareEditorInput.java:1379) at org.eclipse.compare.internal.merge.DocumentMerger.doDiff(DocumentMerger.java:468) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.doDiff(TextMergeViewer.java:3386) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.update(TextMergeViewer.java:5259) at org.eclipse.compare.contentmergeviewer.TextMergeViewer$2.runInUIThread(TextMergeViewer.java:1053) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764) at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:174) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:389) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:513) at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275) at org.eclipse.ui.internal.progress.ProgressManager$3.run(ProgressManager.java:961) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:996) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:971) at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1167) at org.eclipse.compare.internal.CompareContainer.run(CompareContainer.java:80) at org.eclipse.compare.CompareEditorInput.run(CompareEditorInput.java:1379) at org.eclipse.compare.internal.merge.DocumentMerger.doDiff(DocumentMerger.java:468) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.doDiff(TextMergeViewer.java:3386) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.access$64(TextMergeViewer.java:3375) at org.eclipse.compare.contentmergeviewer.TextMergeViewer$33.runInUIThread(TextMergeViewer.java:3015) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764) at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:174) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:389) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:513) at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275) at org.eclipse.ui.internal.progress.ProgressManager$3.run(ProgressManager.java:961) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:996) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:971) at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1167) at org.eclipse.compare.internal.CompareContainer.run(CompareContainer.java:80) at org.eclipse.compare.CompareEditorInput.run(CompareEditorInput.java:1379) at org.eclipse.compare.internal.merge.DocumentMerger.doDiff(DocumentMerger.java:468) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.doDiff(TextMergeViewer.java:3386) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.update(TextMergeViewer.java:5259) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.updateContent(TextMergeViewer.java:2902) at org.eclipse.compare.contentmergeviewer.ContentMergeViewer.internalRefresh(ContentMergeViewer.java:743) at org.eclipse.compare.contentmergeviewer.ContentMergeViewer.refresh(ContentMergeViewer.java:718) at org.eclipse.compare.contentmergeviewer.TextMergeViewer$ContributorInfo.resetDocument(TextMergeViewer.java:1031) at org.eclipse.compare.contentmergeviewer.TextMergeViewer$ContributorInfo.elementDeleted(TextMergeViewer.java:1020) at org.eclipse.ui.editors.text.TextFileDocumentProvider$FileBufferListener.underlyingFileDeleted(TextFileDocumentProvider.java:336) at org.eclipse.core.internal.filebuffers.TextFileBufferManager$7.run(TextFileBufferManager.java:754) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.filebuffers.TextFileBufferManager.fireUnderlyingFileDeleted(TextFileBufferManager.java:752) at org.eclipse.core.internal.filebuffers.ResourceFileBuffer.handleFileDeleted(ResourceFileBuffer.java:458) at org.eclipse.core.internal.filebuffers.ResourceFileBuffer$4.execute(ResourceFileBuffer.java:169) at org.eclipse.core.internal.filebuffers.ResourceFileBuffer$SafeFileChange.run(ResourceFileBuffer.java:86) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1122) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1006) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:146) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:615) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:566) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:125) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:109) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:80) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:372) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:226) 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:636) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant. If the bug is still relevant, please remove the stalebug whiteboard tag.
