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I keep getting NPEs in JavaReconciler#uninstall on 3.6m7. java.lang.NullPointerException at org.eclipse.jdt.internal.ui.text.JavaReconciler.uninstall(JavaReconciler.java:341) at org.eclipse.jface.text.source.SourceViewer.unconfigure(SourceViewer.java:692) at org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer.unconfigure(JavaSourceViewer.java:357) at org.eclipse.jface.text.source.SourceViewer.handleDispose(SourceViewer.java:745) at org.eclipse.jface.text.source.projection.ProjectionViewer.handleDispose(ProjectionViewer.java:1363) at org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer.handleDispose(JavaSourceViewer.java:462) at org.eclipse.jface.text.TextViewer$2.widgetDisposed(TextViewer.java:1798) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1234) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1243) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1060) at org.eclipse.swt.custom.StyledText.handleDispose(StyledText.java:5816) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5642) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1234) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1239) at org.eclipse.swt.widgets.Widget.release(Widget.java:1079) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Canvas.releaseChildren(Canvas.java:208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1208) at org.eclipse.swt.widgets.Widget.release(Widget.java:1082) at org.eclipse.swt.widgets.Control.release(Control.java:3292) at org.eclipse.swt.widgets.Widget.dispose(Widget.java:461) at org.eclipse.ui.internal.PartPane.dispose(PartPane.java:180) at org.eclipse.ui.internal.WorkbenchPartReference.dispose(WorkbenchPartReference.java:681) at org.eclipse.ui.internal.WorkbenchPage.disposePart(WorkbenchPage.java:1721) at org.eclipse.ui.internal.WorkbenchPage.handleDeferredEvents(WorkbenchPage.java:1426) at org.eclipse.ui.internal.WorkbenchPage.deferUpdates(WorkbenchPage.java:1410) at org.eclipse.ui.internal.WorkbenchPage.closeEditors(WorkbenchPage.java:1384) at org.eclipse.ui.internal.WorkbenchPage.closeEditor(WorkbenchPage.java:1448) at org.eclipse.team.ui.synchronize.SaveableCompareEditorInput$3.run(SaveableCompareEditorInput.java:290) at org.eclipse.team.ui.synchronize.SaveableCompareEditorInput.closeEditor(SaveableCompareEditorInput.java:294) at org.eclipse.team.ui.synchronize.SaveableCompareEditorInput$1.compareInputChanged(SaveableCompareEditorInput.java:167) at org.eclipse.team.internal.ui.mapping.AbstractCompareInput$1.run(AbstractCompareInput.java:74) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.team.internal.ui.mapping.AbstractCompareInput.fireChange(AbstractCompareInput.java:72) at org.eclipse.team.internal.ui.mapping.ResourceDiffCompareInput.fireChange(ResourceDiffCompareInput.java:168) at org.eclipse.team.internal.ui.mapping.ResourceDiffCompareInput.update(ResourceDiffCompareInput.java:277) at org.eclipse.team.internal.ui.mapping.CompareInputChangeNotifier.fireChange(CompareInputChangeNotifier.java:389) at org.eclipse.team.internal.ui.mapping.CompareInputChangeNotifier.fireChanges(CompareInputChangeNotifier.java:295) at org.eclipse.team.internal.ui.mapping.CompareInputChangeNotifier$1.run(CompareInputChangeNotifier.java:253) at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:164) at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:158) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3515) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3162) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2601) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2565) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2399) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:669) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:662) 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:597) 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) at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
>I keep getting NPEs in JavaReconciler#uninstall on 3.6m7. Not here using 3.6 RC1. Please see: http://www.eclipse.org/eclipse/platform-text/development/bug-incomplete.htm
You don't believe a back-trace plus build is sufficient? Or are you saying it's been fixed in RC1?
Same exception on bug 304160 comment 3 *** This bug has been marked as a duplicate of bug 304160 ***
>You don't believe a back-trace plus build is sufficient? No, because we don't just go and add a null-check without understanding the real cause for the problem. Good you found the duplicate.
Oh sure. (In reply to comment #4) > No, because we don't just go and add a null-check without understanding the real cause for the problem. I wasn't implying you should. My point was NPEs indicate something has gone wrong. That fact I see them sporadically indicates there may be some kind of race. Closing e a bug WON'T FIX when the exception was reported in the most recent milestone just sends the message "don't bother reporting unless you can reliably reproduce". It only grates as in CDT I'd never close a NPE filed in this way without looking at the code and convincing myself that something had changed to resolve the issue, or that the build is so old as to make the exception useless.
I expect more from a bug than just a stack trace and a build ID. Of course even in that case I look at it and try to reproduce even though zero steps are given. If I can't reproduce, then closing as WONTFIX normally makes the bug reporter add more steps (at least if the problem occurs again on his machine).
