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I20040121 + newest J Core I had this NPE in .log - no steps (there was nothing visible in the UI) !ENTRY org.eclipse.ui 4 0 Jan 27, 2004 15:02:49.277 !MESSAGE Action for command 'org.eclipse.ui.edit.text.contentAssist.proposals' failed to execute properly. !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.compiler.lookup.MethodScope.createMethod(MethodScope.java:299) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.buildMethods(ClassScope.java:220) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.buildFieldsAndMethods(ClassScope.java:124) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.buildFieldsAndMethods(ClassScope.java:132) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.buildFieldsAndMethods(CompilationUnitScope.java:61) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:224) at org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:800) at org.eclipse.jdt.internal.core.BinaryType.codeComplete(BinaryType.java:90) at org.eclipse.jdt.internal.core.BinaryType.codeComplete(BinaryType.java:57) at org.eclipse.jdt.internal.debug.ui.display.DetailsCompletionProcessor.computeCompletionProposals(DetailsCompletionProcessor.java:85) at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1433) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:231) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$7(CompletionProposalPopup.java:227) at org.eclipse.jface.text.contentassist.CompletionProposalPopup$1.run(CompletionProposalPopup.java:190) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:84) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:185) at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1285) at org.eclipse.jface.text.source.SourceViewer.doOperation(SourceViewer.java:633) at org.eclipse.ui.console.actions.TextViewerAction.run(TextViewerAction.java:61) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.ui.internal.commands.ActionHandler.execute(ActionHandler.java:40) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:414) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:778) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:815) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:505) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$2(WorkbenchKeyboard.java:444) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$1.handleEvent(WorkbenchKeyboard.java:233) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:699) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:832) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:857) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842) at org.eclipse.swt.widgets.Control.sendKeyEvent(Control.java:1716) at org.eclipse.swt.widgets.Control.sendKeyEvent(Control.java:1712) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3037) at org.eclipse.swt.widgets.Control.windowProc(Control.java:2940) at org.eclipse.swt.widgets.Display.windowProc(Display.java:2865) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1371) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2019) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1530) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1506) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:265) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:139) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:47) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:248) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:85) 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:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:279) at org.eclipse.core.launcher.Main.run(Main.java:742) at org.eclipse.core.launcher.Main.main(Main.java:581)
I can reproduce the bug in build I20040120. Test case: 1) create a test.jar with the following content. X.class public interface X { public class Y { public void foo(Object o) { System.out.println(); } } } 2) create a testsrc.zip file with the X.java. 3) create a java project P. 4) add test.jar on the classpath and attach testsrc.zip. 5) create Test.java. public class Test { public static void main(String[] args) { X x = new X(){}; new X.Y().foo(null);//breakpoint } } 6) place a breakpoint. 7) execute Test as application in debug mode. 8) step inside foo() method. 9) place cursor in the Display view. 10) do ctrl+space. .log contain the NPE.
*** Bug 62201 has been marked as a duplicate of this bug. ***
Fixed and test added SnippetCompletionTests#testCodeSnippetAssistForClassFileInInterface()
Verified in 200405180816
