Bug 89268 [assist] IllegalArgumentException during code assist on annotation attribute
I20050324 On the following test case: @Ann(at| // code complete here public class A { } @interface Ann { String attr(); } I got the following IllegalArgumentException: java.lang.IllegalArgumentException at org.eclipse.jdt.core.Signature.getParameterCount(Signature.java:950) at org.eclipse.jdt.core.Signature.getParameterTypes(Signature.java:1083) at org.eclipse.jdt.internal.ui.text.java.ProposalLabelProvider.appendUnboundedParameterList(ProposalLabelProvider.java:73) at org.eclipse.jdt.internal.ui.text.java.ProposalLabelProvider.createMethodProposalLabel(ProposalLabelProvider.java:168) at org.eclipse.jdt.internal.ui.text.java.ProposalLabelProvider.createLabel(ProposalLabelProvider.java:323) at org.eclipse.jdt.internal.ui.text.java.ResultCollector.createAnnotationAttributeReferenceProposal(ResultCollector.java:392) at org.eclipse.jdt.internal.ui.text.java.ResultCollector.acceptAnnotationAttributeReference(ResultCollector.java:387) at org.eclipse.jdt.internal.ui.text.java.ResultCollector.accept(ResultCollector.java:506) at org.eclipse.jdt.internal.codeassist.CompletionEngine.findAnnotationAttributes(CompletionEngine.java:1264) at org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:874) at org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:1167) at org.eclipse.jdt.internal.core.Openable.codeComplete(Openable.java:119) at org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:300) at org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:293) 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:1470) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:250) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$7(CompletionProposalPopup.java:247) at org.eclipse.jface.text.contentassist.CompletionProposalPopup$1.run(CompletionProposalPopup.java:206) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:201) at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1319) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:183) 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:1003) at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:181) at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:108) at org.eclipse.core.commands.Command.execute(Command.java:331) at org.eclipse.core.commands.ParameterizedCommand.execute(ParameterizedCommand.java:390) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:452) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:741) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:784) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:543) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:486) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:110) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:777) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:841) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:866) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:851) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:879) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:875) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1182) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3121) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3024) at org.eclipse.swt.widgets.Display.windowProc(Display.java:3466) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1624) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2525) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1538) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1502) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:306) 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:228) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:338) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:151) 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.invokeFramework(Main.java:268) at org.eclipse.core.launcher.Main.basicRun(Main.java:260) at org.eclipse.core.launcher.Main.run(Main.java:887) at org.eclipse.core.launcher.Main.main(Main.java:871)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/java/ResultCollector.java
fJavaProposals.clear();
		fKeywords.clear();
		fSuggestedMethodNames.clear();
	}	
	/**
	 * @inheritDoc
	 * <p>
	 * Subclasses may replace, but usually should not need to. Consider
	 * replacing
	 * {@linkplain #createJavaCompletionProposal(CompletionProposal) createJavaCompletionProposal}
	 * instead.
	 * </p>
	 */
	public void accept(CompletionProposal proposal) {
		long start= DEBUG ? System.currentTimeMillis() : 0;
		try {
			if (isFiltered(proposal))
				return;
			
			if (proposal.getKind() == CompletionProposal.POTENTIAL_METHOD_DECLARATION) {
				acceptPotentialMethodDeclaration(proposal);
			} else {
				IJavaCompletionProposal javaProposal= createJavaCompletionProposal(proposal);
				if (javaProposal != null) {
					fJavaProposals.add(javaProposal);
					if (proposal.getKind() == CompletionProposal.KEYWORD)
						fKeywords.add(javaProposal);
				}
			}
		} catch (IllegalArgumentException e) {