| NullPointerException when displaying a visual class [message #127978] |
Sat, 08 July 2006 09:48  |
Eclipse User |
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Originally posted by: harel.ben-attia.comverse.com
Hi,
i have a visual class which worked without any problems for a while. After
changing one of my own methods (i've changed a parameter in a constructor
call), the visual part became blank. looking at the log, i found the
exceptions below. clearing the cache did not solve the problem. After
restarting eclipse for several times, the problem was gone. If I remember
correctly, i've let the workbench save the file for me (i did not press
ctrl-S before running the application), which might have been the cause for
the problems.
The problem is gone now, but i'm afraid that it will return the same way it
started. Does anyone have an idea about the cause ?
Thanks
RL
!ENTRY org.eclipse.ve.java.core 4 2 2006-07-08 12:34:16.859
!MESSAGE Problems occurred when invoking code from plug-in:
"org.eclipse.ve.java.core".
!STACK 0
java.lang.IllegalStateException: IWAV0163E Expression is in invalid state
at
org.eclipse.jem.internal.proxy.core.Expression.checkForExpre ssion(Expression.java:438)
at
org.eclipse.jem.internal.proxy.core.Expression.mark(Expressi on.java:1980)
at
org.eclipse.ve.internal.java.core.BeanProxyAdapter.releaseBe anProxy(BeanProxyAdapter.java:1344)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r$2.run(MemberContainerProxyAdapter.java:253)
at
org.eclipse.core.internal.runtime.InternalPlatform.run(Inter nalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseSetting(MemberContainerProxyAdapter.java:246)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseBeanProxy(MemberContainerProxyAdapter.java:309)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseBeanProxy(MemberContainerProxyAdapter.java:324)
at
org.eclipse.ve.internal.java.core.CompositionProxyAdapter.re leaseBeanProxy(CompositionProxyAdapter.java:339)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseBeanProxy(MemberContainerProxyAdapter.java:273)
at
org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEd itorPart$Setup.run(JavaVisualEditorPart.java:1911)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)
!ENTRY org.eclipse.ve.java.core 2 0 2006-07-08 12:34:16.859
!MESSAGE Exception thrown.
!STACK 0
java.lang.IllegalStateException: IWAV0163E Expression is in invalid state
at
org.eclipse.jem.internal.proxy.core.Expression.checkForExpre ssion(Expression.java:438)
at
org.eclipse.jem.internal.proxy.core.Expression.mark(Expressi on.java:1980)
at
org.eclipse.ve.internal.java.core.BeanProxyAdapter.releaseBe anProxy(BeanProxyAdapter.java:1344)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r$2.run(MemberContainerProxyAdapter.java:253)
at
org.eclipse.core.internal.runtime.InternalPlatform.run(Inter nalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseSetting(MemberContainerProxyAdapter.java:246)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseBeanProxy(MemberContainerProxyAdapter.java:309)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseBeanProxy(MemberContainerProxyAdapter.java:324)
at
org.eclipse.ve.internal.java.core.CompositionProxyAdapter.re leaseBeanProxy(CompositionProxyAdapter.java:339)
at
org.eclipse.ve.internal.java.core.MemberContainerProxyAdapte r.releaseBeanProxy(MemberContainerProxyAdapter.java:273)
at
org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEd itorPart$Setup.run(JavaVisualEditorPart.java:1911)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)
!ENTRY org.eclipse.jem.proxy 2 0 2006-07-08 12:34:16.875
!MESSAGE
+++ Warning +++: Sat Jul 08 12:34:16 IDT 2006 Project
(UniLoaderConsole)-VM for UniLoaderConsole:err>
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:3102)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2761)
at
org.eclipse.ve.internal.swt.targetvm.Environment$3.run(Envir onment.java:68)
!ENTRY org.eclipse.jem.proxy 2 0 2006-07-08 12:34:17.31
!MESSAGE Exception thrown.
!STACK 0
java.lang.NullPointerException
at
org.eclipse.ve.internal.swt.CompositeManagerExtension.primSe tExtensionProxy(CompositeManagerExtension.java:81)
at
org.eclipse.ve.internal.swt.ControlManager$1.proxyResolved(C ontrolManager.java:172)
at
org.eclipse.jem.internal.proxy.core.ExpressionProxy.fireReso lved(ExpressionProxy.java:262)
at
org.eclipse.jem.internal.proxy.core.Expression.fireProxyReso lved(Expression.java:735)
at
org.eclipse.jem.internal.proxy.remote.REMExpression.processp ulledExpressionProxies(REMExpression.java:389)
at
org.eclipse.jem.internal.proxy.remote.REMExpression.pushInvo ke(REMExpression.java:974)
at
org.eclipse.jem.internal.proxy.core.Expression.invokeExpress ion(Expression.java:685)
at
org.eclipse.ve.internal.java.core.CompositionProxyAdapter.in itBeanProxy(CompositionProxyAdapter.java:311)
at
org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEd itorPart$Setup.run(JavaVisualEditorPart.java:1992)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)
!ENTRY org.eclipse.ve.java.core 2 0 2006-07-08 12:34:17.31
!MESSAGE Exception thrown.
!STACK 0
IWAV0073I *** RemoteVM Exception - Trace from Remote VM:
org.eclipse.jem.internal.proxy.initParser.tree.NoExpressionV alueException:
Proxy id: 1
at
org.eclipse.jem.internal.proxy.initParser.tree.ExpressionPro cesser.pushExpressionProxy(ExpressionProcesser.java:829)
at
org.eclipse.jem.internal.proxy.vm.remote.ExpressionProcesser Controller.process(ExpressionProcesserController.java:320)
at
org.eclipse.jem.internal.proxy.vm.remote.ConnectionHandler.p rocessExpressionCommand(ConnectionHandler.java:602)
at
org.eclipse.jem.internal.proxy.vm.remote.ConnectionHandler.r un(ConnectionHandler.java:493)
at
org.eclipse.jem.internal.proxy.vm.remote.CallbackHandler.cal lbackWithParms(CallbackHandler.java:150)
at
org.eclipse.ve.internal.swt.targetvm.DisplayExec$1.run(Displ ayExec.java:109)
at
org.eclipse.jem.internal.proxy.vm.remote.RemoteVMServerThrea d.doCallback(RemoteVMServerThread.java:541)
at
org.eclipse.ve.internal.swt.targetvm.DisplayExec$ExecRunnabl e.run(DisplayExec.java:107)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:3102)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2761)
at
org.eclipse.ve.internal.swt.targetvm.Environment$3.run(Envir onment.java:68)
IWAV0074I *** Local StackTrace:
org.eclipse.jem.internal.proxy.remote.REMThrowableBeanProxyP roxy:
org.eclipse.jem.internal.proxy.initParser.tree.NoExpressionV alueException:
Proxy id: 1
at
org.eclipse.jem.internal.proxy.remote.REMThrowableBeanTypePr oxy.createThrowableBeanProxy(REMThrowableBeanTypeProxy.java: 34)
at
org.eclipse.jem.internal.proxy.remote.REMThrowableBeanTypePr oxy.newBeanProxy(REMThrowableBeanTypeProxy.java:65)
at
org.eclipse.jem.internal.proxy.remote.REMStandardBeanProxyFa ctory.getBeanProxy(REMStandardBeanProxyFactory.java:459)
at
org.eclipse.jem.internal.proxy.remote.REMExpression.pushInvo ke(REMExpression.java:983)
at
org.eclipse.jem.internal.proxy.core.Expression.invokeExpress ion(Expression.java:685)
at
org.eclipse.ve.internal.java.core.CompositionProxyAdapter.in itBeanProxy(CompositionProxyAdapter.java:311)
at
org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEd itorPart$Setup.run(JavaVisualEditorPart.java:1992)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)
!ENTRY org.eclipse.ve.java.core 4 0 2006-07-08 12:34:39.15
!MESSAGE Exception thrown.
!STACK 0
java.lang.NullPointerException
at
org.eclipse.emf.ecore.impl.EStructuralFeatureImpl.getSetting Delegate(EStructuralFeatureImpl.java:790)
at
org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSettingDelegate (BasicEObjectImpl.java:822)
at
org.eclipse.emf.ecore.impl.BasicEObjectImpl.eDynamicIsSet(Ba sicEObjectImpl.java:609)
at
org.eclipse.emf.ecore.impl.BasicEObjectImpl.eIsSet(BasicEObj ectImpl.java:600)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLS aveImpl.java:951)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XML SaveImpl.java:2272)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElement(XMLSa veImpl.java:889)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveContainedMany (XMLSaveImpl.java:2001)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLS aveImpl.java:1221)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XML SaveImpl.java:2272)
at
org.eclipse.emf.ecore.xmi.impl.XMISaveImpl.writeTopObjects(X MISaveImpl.java:78)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.traverse(XMLSaveI mpl.java:478)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.save(XMLSaveImpl. java:206)
at
org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doSave(XMLRes ourceImpl.java:193)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:893)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:813)
at
org.eclipse.ve.internal.java.codegen.util.VEModelCacheUtilit y.doSaveCache(VEModelCacheUtility.java:158)
at
org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslat or.doSave(JavaSourceTranslator.java:1358)
at
org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEd itorPart.doSave(JavaVisualEditorPart.java:2817)
at org.eclipse.ui.internal.SaveableHelper$1.run(SaveableHelper. java:95)
at org.eclipse.ui.internal.SaveableHelper$2.run(SaveableHelper. java:116)
at
org.eclipse.jface.operation.ModalContext.runInCurrentThread( ModalContext.java:346)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.ja va:291)
at
org.eclipse.jface.window.ApplicationWindow$1.run(Application Window.java:624)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:69)
at
org.eclipse.jface.window.ApplicationWindow.run(ApplicationWi ndow.java:621)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow. java:2134)
at
org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOpe ration(SaveableHelper.java:122)
at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelp er.java:100)
at org.eclipse.ui.internal.EditorManager.savePart(EditorManager .java:1154)
at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage .java:2714)
at
org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPa ge.java:2727)
at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:69)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:996 )
at org.eclipse.jface.commands.ActionHandler.execute(ActionHandl er.java:117)
at org.eclipse.core.commands.Command.execute(Command.java:311)
at
org.eclipse.core.commands.ParameterizedCommand.execute(Param eterizedCommand.java:396)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeComman d(WorkbenchKeyboard.java:459)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(Workben chKeyboard.java:781)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEve nt(WorkbenchKeyboard.java:828)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequ enceBindings(WorkbenchKeyboard.java:550)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(Work benchKeyboard.java:493)
at
org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter .handleEvent(WorkbenchKeyboard.java:117)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:919 )
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:867)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:852)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:880)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:876)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1190)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3135)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3038 )
at org.eclipse.swt.widgets.Display.windowProc(Display.java:3751 )
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:158 0)
at org.eclipse.swt.internal.BidiUtil.windowProc(BidiUtil.java:6 49)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:16 56)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2756)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:1699)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:367)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplicatio n.java:103)
at
org.eclipse.core.internal.runtime.PlatformActivator$1.run(Pl atformActivator.java:226)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:376)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:163)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
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)
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