Bug 353911 - [mint] NPE when customizing generated method from outline and source ecitor
Summary: [mint] NPE when customizing generated method from outline and source ecitor
Status: NEW
Alias: None
Product: EMFT
Classification: Modeling
Component: Mint (show other bugs)
Version: unspecified   Edit
Hardware: PC Windows XP
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Peter Nehrer CLA
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Reported: 2011-08-04 11:43 EDT by stefan CLA
Modified: 2011-08-04 13:09 EDT (History)
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Description stefan CLA 2011-08-04 11:43:44 EDT 
Build Identifier: 20110609-2236

in CustomizeGeneratedMethodOperation#doRun the MethodDeclaration created by ASTNode#findDeclaringNode ends up with a null set to #optionalDocComment (which is returned by the MethodDeclaration#getJavadoc method), even though in the java file there is javadoc 
/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */

the null javadoc is of course copied to the about-to-be-added gen method, which causes for a NPE in the #findGeneratedTag method, which does not protect for null javadoc passed in.

the NPE is caught and rethrown in a InvocationTargetException in ModelContext#runInCurrentThread.

Here the stacktrace:


!ENTRY org.eclipse.emf.mint.ui 4 0 2011-08-04 17:33:05.850
!MESSAGE Could not perform requested action.
!STACK 0
java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:477)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
	at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275)
	at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1162)
	at org.eclipse.ui.internal.progress.ProgressManager$RunnableWithStatus.run(ProgressManager.java:1346)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.progress.ProgressManager$7.run(ProgressManager.java:1184)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4683)
	at org.eclipse.ui.internal.progress.ProgressManager.runInUI(ProgressManager.java:1182)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler.run(CustomizeGeneratedMethodHandler.java:101)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler.run(CustomizeGeneratedMethodHandler.java:62)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler.execute(CustomizeGeneratedMethodHandler.java:48)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	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.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829)
	at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815)
	at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805)
	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.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	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:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	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:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.NullPointerException
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodOperation.findGeneratedTag(CustomizeGeneratedMethodOperation.java:232)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodOperation.doRun(CustomizeGeneratedMethodOperation.java:157)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodOperation.run(CustomizeGeneratedMethodOperation.java:77)
	at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4860)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4817)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler$1.run(CustomizeGeneratedMethodHandler.java:105)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	... 48 more
Root exception:
java.lang.NullPointerException
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodOperation.findGeneratedTag(CustomizeGeneratedMethodOperation.java:232)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodOperation.doRun(CustomizeGeneratedMethodOperation.java:157)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodOperation.run(CustomizeGeneratedMethodOperation.java:77)
	at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4860)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4817)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler$1.run(CustomizeGeneratedMethodHandler.java:105)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
	at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275)
	at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1162)
	at org.eclipse.ui.internal.progress.ProgressManager$RunnableWithStatus.run(ProgressManager.java:1346)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.progress.ProgressManager$7.run(ProgressManager.java:1184)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4683)
	at org.eclipse.ui.internal.progress.ProgressManager.runInUI(ProgressManager.java:1182)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler.run(CustomizeGeneratedMethodHandler.java:101)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler.run(CustomizeGeneratedMethodHandler.java:62)
	at org.eclipse.emf.mint.internal.ui.source.CustomizeGeneratedMethodHandler.execute(CustomizeGeneratedMethodHandler.java:48)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	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.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829)
	at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815)
	at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805)
	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.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	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:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	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:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

Reproducible: Always

Steps to Reproduce:
no special steps to reproduce on my installations, as this is constant behavior