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Happens when clicking on some stack frames in suspended stack trace. Strangely clicking on next stack frame (from the same source file) usually works. Happens not always on HyperThreaded XP. Looks like racing condition. eclipse.buildId=I200406251208 java.lang.NullPointerException at org.eclipse.jdt.internal.core.Buffer.removeBufferChangedListener (Buffer.java:273) at org.eclipse.jdt.internal.core.Openable.closeBuffer(Openable.java:94) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed (JavaElement.java:581) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo (JavaElement.java:309) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo (JavaElement.java:295) at org.eclipse.jdt.internal.core.JavaElement.exists(JavaElement.java:162) at org.eclipse.jdt.internal.core.CompilationUnit.getImports (CompilationUnit.java:684) at org.eclipse.jdt.internal.core.SourceTypeElementInfo.getImports (SourceTypeElementInfo.java:126) at org.eclipse.jdt.internal.compiler.parser.SourceTypeConverter.convert (SourceTypeConverter.java:111) at org.eclipse.jdt.internal.compiler.parser.SourceTypeConverter.buildCompilationUn it(SourceTypeConverter.java:83) at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.accept (CompilationUnitProblemFinder.java:100) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType (LookupEnvironment.java:113) at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage (PackageBinding.java:170) at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage (Scope.java:1647) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype (ClassScope.java:820) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass (ClassScope.java:607) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy (ClassScope.java:700) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierar chy(CompilationUnitScope.java:242) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings (LookupEnvironment.java:177) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings (LookupEnvironment.java:206) at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.accept (CompilationUnitProblemFinder.java:110) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType (LookupEnvironment.java:113) at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage (PackageBinding.java:170) at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage (Scope.java:1647) at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:1470) at org.eclipse.jdt.internal.compiler.ast.SingleTypeReference.getTypeBinding (SingleTypeReference.java:43) at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypesFor (SourceTypeBinding.java:831) at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.methods (SourceTypeBinding.java:692) at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.faultInTypesForField sAndMethods(SourceTypeBinding.java:347) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes (CompilationUnitScope.java:350) at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:557) at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process (CompilationUnitProblemFinder.java:176) at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure (CompilationUnit.java:146) at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:183) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed (JavaElement.java:572) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo (JavaElement.java:309) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo (JavaElement.java:295) at org.eclipse.jdt.internal.core.JavaElement.getChildren(JavaElement.java:250) at org.eclipse.jdt.internal.core.JavaElement.getChildrenOfType (JavaElement.java:264) at org.eclipse.jdt.internal.core.CompilationUnit.getTypes (CompilationUnit.java:822) at org.eclipse.jdt.internal.core.NameLookup.seekTypesInSourcePackage (NameLookup.java:697) at org.eclipse.jdt.internal.core.NameLookup.seekTypes(NameLookup.java:554) at org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:384) at org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:355) at org.eclipse.jdt.internal.core.SearchableEnvironment.find (SearchableEnvironment.java:78) at org.eclipse.jdt.internal.core.SearchableEnvironment.findType (SearchableEnvironment.java:158) at org.eclipse.jdt.core.dom.CompilationUnitResolver$CancelableNameEnvironment.find Type(CompilationUnitResolver.java:70) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType (LookupEnvironment.java:101) at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage (PackageBinding.java:170) at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage (Scope.java:1647) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype (ClassScope.java:820) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass (ClassScope.java:607) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy (ClassScope.java:700) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierar chy(CompilationUnitScope.java:242) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings (LookupEnvironment.java:177) at org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:307) at org.eclipse.jdt.core.dom.CompilationUnitResolver.resolve (CompilationUnitResolver.java:392) at org.eclipse.jdt.core.dom.CompilationUnitResolver.resolve (CompilationUnitResolver.java:313) at org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:657) at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:574) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine.parseCompila tionUnit(ASTEvaluationEngine.java:165) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine.getCompiledE xpression(ASTEvaluationEngine.java:149) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine.evaluate (ASTEvaluationEngine.java:73) at org.eclipse.jdt.internal.debug.ui.JavaWatchExpressionDelegate$EvaluationRunnabl e.run(JavaWatchExpressionDelegate.java:144) at org.eclipse.jdt.internal.debug.core.model.JDIThread$ThreadJob.run (JDIThread.java:2516) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:66)
Moving to JCORE for comment.
*** Bug 71468 has been marked as a duplicate of this bug. ***
*** Bug 76569 has been marked as a duplicate of this bug. ***
Synchronized Buffer#addBufferChangedListener and removeBufferChangeListener and changed notifyChanged to use a local variable and testing this local for null.
*** Bug 78523 has been marked as a duplicate of this bug. ***
Verified in I20050214-0927
java.lang.NullPointerException at org.eclipse.jdt.internal.core.Buffer.addBufferChangedListener (Buffer.java:62) at org.eclipse.jdt.internal.core.ClassFile.mapSource(ClassFile.java:642) at org.eclipse.jdt.internal.core.ClassFile.openBuffer (ClassFile.java:540) at org.eclipse.jdt.internal.core.Openable.getBuffer(Openable.java:263) at org.eclipse.jdt.internal.core.ClassFile.getBuffer(ClassFile.java:263) at org.eclipse.jdt.internal.core.ClassFile.getSourceRange (ClassFile.java:428) at org.eclipse.jdt.internal.ui.javaeditor.ClassFileEditor.verifyInput (ClassFileEditor.java:708) at org.eclipse.jdt.internal.ui.javaeditor.ClassFileEditor.createPartControl (ClassFileEditor.java:672) at org.eclipse.ui.internal.EditorReference.createPartHelper (EditorReference.java:585) at org.eclipse.ui.internal.EditorReference.createPart (EditorReference.java:365) at org.eclipse.ui.internal.WorkbenchPartReference.getPart (WorkbenchPartReference.java:552) at org.eclipse.ui.internal.EditorReference.getEditor (EditorReference.java:214) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched (WorkbenchPage.java:2325) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor (WorkbenchPage.java:2258) at org.eclipse.ui.internal.WorkbenchPage.access$9 (WorkbenchPage.java:2250) at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2236) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.ui.internal.WorkbenchPage.openEditor (WorkbenchPage.java:2231) at org.eclipse.ui.internal.WorkbenchPage.openEditor (WorkbenchPage.java:2212) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor (EditorUtility.java:263) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor (EditorUtility.java:140) at org.eclipse.jdt.internal.ui.actions.OpenActionUtil.open (OpenActionUtil.java:49) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:169) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:141) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun (SelectionDispatchAction.java:226) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run (SelectionDispatchAction.java:198) at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlink.open (JavaElementHyperlink.java:55) at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseUp (HyperlinkManager.java:388) at org.eclipse.swt.widgets.TypedListener.handleEvent (TypedListener.java:137) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:367) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:103) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:226) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:376) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:163) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948)
Sorry, I'm new to this... here's the full data for my last comment: Elipse Build id: I20050627-1435 System: Win XP, hyperthreaded. I tried to open (ctrl+click) ThreadLocal$ThreadLocalMap.class and got the error below. Usually it works. I tried to reproduce the bug, tried many times - doesn't happen again. Strange... I have the jadclipse plugin installed, which causes (harmless) error messages when I ctrl+click open class files. Might have something to do with this, but probably not. java.lang.NullPointerException at org.eclipse.jdt.internal.core.Buffer.addBufferChangedListener (Buffer.java:62) at org.eclipse.jdt.internal.core.ClassFile.mapSource(ClassFile.java:642) at org.eclipse.jdt.internal.core.ClassFile.openBuffer (ClassFile.java:540) at org.eclipse.jdt.internal.core.Openable.getBuffer(Openable.java:263) at org.eclipse.jdt.internal.core.ClassFile.getBuffer(ClassFile.java:263) at org.eclipse.jdt.internal.core.ClassFile.getSourceRange (ClassFile.java:428) at org.eclipse.jdt.internal.ui.javaeditor.ClassFileEditor.verifyInput (ClassFileEditor.java:708) at org.eclipse.jdt.internal.ui.javaeditor.ClassFileEditor.createPartControl (ClassFileEditor.java:672) at org.eclipse.ui.internal.EditorReference.createPartHelper (EditorReference.java:585) at org.eclipse.ui.internal.EditorReference.createPart (EditorReference.java:365) at org.eclipse.ui.internal.WorkbenchPartReference.getPart (WorkbenchPartReference.java:552) at org.eclipse.ui.internal.EditorReference.getEditor (EditorReference.java:214) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched (WorkbenchPage.java:2325) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor (WorkbenchPage.java:2258) at org.eclipse.ui.internal.WorkbenchPage.access$9 (WorkbenchPage.java:2250) at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2236) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.ui.internal.WorkbenchPage.openEditor (WorkbenchPage.java:2231) at org.eclipse.ui.internal.WorkbenchPage.openEditor (WorkbenchPage.java:2212) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor (EditorUtility.java:263) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor (EditorUtility.java:140) at org.eclipse.jdt.internal.ui.actions.OpenActionUtil.open (OpenActionUtil.java:49) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:169) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:141) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun (SelectionDispatchAction.java:226) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run (SelectionDispatchAction.java:198) at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlink.open (JavaElementHyperlink.java:55) at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseUp (HyperlinkManager.java:388) at org.eclipse.swt.widgets.TypedListener.handleEvent (TypedListener.java:137) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:367) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:103) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:226) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:376) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:163) 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.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948)
Can you please try removing the jadclipse and see if the problem persists ? If it does, please open a new bug report with as much information as you can provide and possibly with steps to reproduce.
Haven't seen this bug again, with any version of jadclipse. -> Unreproducible.
