Description Mark Helmstetter 2004-11-17 09:58:54 EST

Eclipse 3.1M3 (Build id: 200411050810) java.version=1.5.0

When I attempt content assist for constructor arguments for a class that only
has a default constructor, I get an error "The command for the key you pressed
failed".  This seems to only occur for classes that only have a default (no arg)
constructor.  For example:

    new DefaultTreeCellRenderer(); 

The Error Log event details provides the following stack trace:

java.lang.NullPointerException
	at java.lang.String.<init>(String.java:173)
	at
org.eclipse.jdt.internal.codeassist.InternalCompletionProposal.findMethodParameterNames(InternalCompletionProposal.java:185)
	at
org.eclipse.jdt.core.CompletionProposal.findParameterNames(CompletionProposal.java:1169)
	at
org.eclipse.jdt.internal.codeassist.CompletionRequestorWrapper.accept(CompletionRequestorWrapper.java:223)
	at
org.eclipse.jdt.internal.codeassist.CompletionEngine.findConstructors(CompletionEngine.java:1350)
	at
org.eclipse.jdt.internal.codeassist.CompletionEngine.findAnonymousType(CompletionEngine.java:1158)
	at
org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:706)
	at
org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:1043)
	at org.eclipse.jdt.internal.core.Openable.codeComplete(Openable.java:119)
	at
org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:286)
	at
org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:201)
	at
org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:192)
	at
org.eclipse.jdt.internal.ui.text.java.JavaCompletionProcessor.internalComputeCompletionProposals(JavaCompletionProcessor.java:358)
	at
org.eclipse.jdt.internal.ui.text.java.JavaCompletionProcessor.computeCompletionProposals(JavaCompletionProcessor.java:332)
	at
org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1472)
	at
org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:251)
	at
org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$7(CompletionProposalPopup.java:247)
	at
org.eclipse.jface.text.contentassist.CompletionProposalPopup$1.run(CompletionProposalPopup.java:206)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
	at
org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:201)
	at
org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1320)
	at
org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:182)
	at org.eclipse.ui.texteditor.ContentAssistAction$1.run(ContentAssistAction.java:82)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
	at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:988)
	at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:188)
	at org.eclipse.ui.internal.commands.Command.execute(Command.java:130)
	at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:445)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:724)
	at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:767)
	at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:536)
	at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$2(WorkbenchKeyboard.java:479)
	at
org.eclipse.ui.internal.keys.WorkbenchKeyboard$1.handleEvent(WorkbenchKeyboard.java:221)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:748)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:799)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:824)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:809)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:837)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:833)
	at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1096)
	at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3077)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:2987)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:3361)
	at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1502)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2446)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:718)
	at org.eclipse.jface.window.Window.open(Window.java:696)
	at
org.eclipse.pde.internal.runtime.logview.EventDetailsDialog.open(EventDetailsDialog.java:141)
	at
org.eclipse.pde.internal.runtime.logview.EventDetailsDialogAction.run(EventDetailsDialogAction.java:90)
	at org.eclipse.pde.internal.runtime.logview.LogView$2.doubleClick(LogView.java:217)
	at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:593)
	at
org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:616)
	at org.eclipse.core.runtime.Platform.run(Platform.java:747)
	at
org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:591)
	at
org.eclipse.jface.viewers.StructuredViewer.handleDoubleSelect(StructuredViewer.java:813)
	at
org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:920)
	at
org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:219)
	at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:216)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:275)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:800)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:824)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:809)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:617)
	at org.eclipse.swt.custom.TableTree.onSelection(TableTree.java:471)
	at org.eclipse.swt.custom.TableTree$1.handleEvent(TableTree.java:101)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:800)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2794)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2448)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1529)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1500)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:276)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:144)
	at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:102)
	at
org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:335)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:273)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:129)
	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:585)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:185)
	at org.eclipse.core.launcher.Main.run(Main.java:704)
	at org.eclipse.core.launcher.Main.main(Main.java:688)