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Bug 376260

Summary:	[UML Compare] NullPointerException opening the CompareEditor in Papyrus
Product:	[Modeling] Papyrus	Reporter:	Vincent Lorenzo <vincent.lorenzo>
Component:	Core	Assignee:	Vincent Lorenzo <vincent.lorenzo>
Status:	CLOSED FIXED	QA Contact:
Severity:	normal
Priority:	P3
Version:	unspecified
Target Milestone:	M7
Hardware:	All
OS:	All
Whiteboard:
Bug Depends on:
Bug Blocks:	371606

Description Vincent Lorenzo

2012-04-06 13:17:48 EDT

Steps to reproduce : 
	1/ Select 2 elements in the ModelExplorer
	2/ Compare with each others using the new Papyrus action
	-> you get the following exception, because CompareEditor does CoreComposedActionBarContributor#setActiveEditor(null). null is not supported by the papyrus action bar
	
	!ENTRY org.eclipse.papyrus.infra.core.sasheditor 4 0 2012-04-06 19:14:05.597
!MESSAGE 
!STACK 0
java.lang.NullPointerException
	at org.eclipse.gef.ui.actions.ActionBarContributor.setActiveEditor(ActionBarContributor.java:152)
	at org.eclipse.papyrus.infra.core.multidiagram.actionbarcontributor.CoreComposedActionBarContributor.setActiveEditor(CoreComposedActionBarContributor.java:114)
	at org.eclipse.compare.internal.CompareEditor.refreshActionBarsContributor(CompareEditor.java:264)
	at org.eclipse.compare.internal.CompareEditor.setInput(CompareEditor.java:256)
	at org.eclipse.compare.internal.CompareEditor.init(CompareEditor.java:240)
	at org.eclipse.papyrus.infra.emf.compare.common.editor.EMFCompareEditor.init(EMFCompareEditor.java:176)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.EditorPart.createEditorPartControl(EditorPart.java:287)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.EditorPart.createPartControl(EditorPart.java:196)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.TabFolderPart.createChildPart(TabFolderPart.java:946)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.TabFolderPart.createTabItem(TabFolderPart.java:867)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.TabFolderPart.synchronize2(TabFolderPart.java:782)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.RootPart.synchronize2(RootPart.java:137)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.SashWindowsContainer.refreshTabsInternal(SashWindowsContainer.java:523)
	at org.eclipse.papyrus.infra.core.sasheditor.internal.SashWindowsContainer.refreshTabs(SashWindowsContainer.java:476)
	at org.eclipse.papyrus.infra.core.sasheditor.editor.AbstractMultiPageSashEditor.refreshTabs(AbstractMultiPageSashEditor.java:171)
	at org.eclipse.papyrus.infra.core.editor.CoreMultiDiagramEditor.access$5(CoreMultiDiagramEditor.java:1)
	at org.eclipse.papyrus.infra.core.editor.CoreMultiDiagramEditor$3.contentChanged(CoreMultiDiagramEditor.java:196)
	at org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.internal.ContentChangedEventProvider.fireContentChanged(ContentChangedEventProvider.java:162)
	at org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.internal.ContentChangedEventProvider$EMFAdapter.notifyChanged(ContentChangedEventProvider.java:194)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1027)
	at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1032)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:299)
	at org.eclipse.emf.common.util.AbstractEList.add(AbstractEList.java:301)
	at org.eclipse.papyrus.infra.core.sashwindows.di.impl.TabFolderImpl.addPage(TabFolderImpl.java:91)
	at org.eclipse.papyrus.infra.core.sashwindows.di.impl.SashModelImpl.addPage(SashModelImpl.java:145)
	at org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.internal.PageMngrImpl.openPage(PageMngrImpl.java:142)
	at org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.internal.TransactionalPageMngrImpl$5.doExecute(TransactionalPageMngrImpl.java:164)
	at org.eclipse.emf.transaction.RecordingCommand.execute(RecordingCommand.java:135)
	at org.eclipse.emf.workspace.EMFCommandOperation.doExecute(EMFCommandOperation.java:119)
	at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:150)
	at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:513)
	at org.eclipse.papyrus.commands.CheckedOperationHistory.execute(CheckedOperationHistory.java:182)
	at org.eclipse.papyrus.commands.NotifyingWorkspaceCommandStack.doExecute(NotifyingWorkspaceCommandStack.java:252)
	at org.eclipse.emf.transaction.impl.AbstractTransactionalCommandStack.execute(AbstractTransactionalCommandStack.java:165)
	at org.eclipse.emf.transaction.impl.AbstractTransactionalCommandStack.execute(AbstractTransactionalCommandStack.java:219)
	at org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.internal.TransactionalPageMngrImpl.openPage(TransactionalPageMngrImpl.java:169)
	at org.eclipse.papyrus.infra.emf.compare.common.handler.AbstractEMFCompareEditorHandler.doExecute(AbstractEMFCompareEditorHandler.java:154)
	at org.eclipse.papyrus.infra.emf.compare.common.handler.AbstractEMFCompareEditorHandler$1.doExecute(AbstractEMFCompareEditorHandler.java:120)
	at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:150)
	at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:513)
	at org.eclipse.papyrus.commands.CheckedOperationHistory.execute(CheckedOperationHistory.java:182)
	at org.eclipse.papyrus.infra.emf.compare.common.handler.AbstractEMFCompareEditorHandler.runAsTransaction(AbstractEMFCompareEditorHandler.java:134)
	at org.eclipse.papyrus.infra.emf.compare.common.handler.AbstractEMFCompareEditorHandler.execute(AbstractEMFCompareEditorHandler.java:96)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:72)
	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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:229)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:210)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:161)
	at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:793)
	at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.handleWidgetSelection(HandledContributionItem.java:686)
	at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.access$6(HandledContributionItem.java:670)
	at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem$4.handleEvent(HandledContributionItem.java:616)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1015)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:909)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:85)
	at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:580)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:535)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	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:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	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:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1414)

!ENTRY org.eclipse.ui 4 0 2012-04-06 19:14:06.075
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:4361)
	at org.eclipse.swt.SWT.error(SWT.java:4276)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1015)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:909)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:85)
	at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:580)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:535)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	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:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	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:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
Caused by: java.lang.NullPointerException
	at org.eclipse.compare.internal.CompareEditor$3.run(CompareEditor.java:369)
	at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:164)
	at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:158)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	... 24 more

Comment 1 Vincent Lorenzo

2012-04-06 13:22:17 EDT

Corrected in R7767. 
This bug can be closed.