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Bug 338434

Summary:	Chain Completion: No superclass found log entry on completion in class with unresolved superclass
Product:	z_Archived	Reporter:	Johannes Lerch <lerch>
Component:	Recommenders	Assignee:	Marcel Bruch <marcel.bruch>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	normal
Priority:	P3
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Windows 7
Whiteboard:

Description Johannes Lerch

2011-02-28 11:28:40 EST

I'm triggering code completion in a class  that extends from an unresvoled type. As the superclass is not imported in my scenario wala returns null for the superclass. This state is not allowed in wala as my class is not Object.


java.lang.IllegalStateException: No superclass found for <Application,Ldata/CompletionOnNonPublicMembersOfSuperClassInMethod> Superclass name LFieldsWithDifferentVisibilities
at com.ibm.wala.classLoader.BytecodeClass.getSuperclass(BytecodeClass.java:237)
at com.ibm.wala.classLoader.BytecodeClass.getAllInstanceFields(BytecodeClass.java:291)
at com.ibm.wala.classLoader.BytecodeClass.getAllFields(BytecodeClass.java:247)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.algorithm.ChainCompletionContext.computeAccessibleFields(ChainCompletionContext.java:132)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.algorithm.ChainCompletionContext.initializeAccessibleElements(ChainCompletionContext.java:71)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.algorithm.ChainCompletionContext.<init>(ChainCompletionContext.java:54)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.algorithm.ChainingAlgorithm.initializeChainCompletionContext(ChainingAlgorithm.java:76)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.algorithm.ChainingAlgorithm.execute(ChainingAlgorithm.java:68)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.ChainCompletionProposalComputer.executeAlgorithm(ChainCompletionProposalComputer.java:79)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.ChainCompletionProposalComputer.doComputeCompletionProposals(ChainCompletionProposalComputer.java:68)
at org.eclipse.recommenders.internal.rcp.codecompletion.chain.ChainCompletionProposalComputer.computeCompletionProposals(ChainCompletionProposalComputer.java:59)
at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:316)
at org.eclipse.jdt.internal.ui.text.java.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:264)
at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor.collectProposals(ContentAssistProcessor.java:286)
at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor.computeCompletionProposals(ContentAssistProcessor.java:246)
at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1834)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:556)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.handleRepeatedInvocation(CompletionProposalPopup.java:541)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:506)
at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1660)
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:70)
at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185)
at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1253)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1103)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1099)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1508)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4268)
at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:345)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4160)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2459)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
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(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)

Comment 1 Marcel Bruch

2011-08-13 19:38:16 EDT

What can we do to get around this exception? Is there any solution we can do or does the chain completion have to take care of this?

Comment 2 Marcel Bruch

2012-01-12 04:21:07 EST

I tend to believe that this is obsolete now with the latest changes. Closing.