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Bug 357993

Summary: [modeling] NPE when removing sub-package from context
Product: z_Archived Reporter: Steffen Pingel <steffen.pingel>
Component: MylynAssignee: Miles Parker <milesparker>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: P3    
Version: unspecified   
Target Milestone: 0.9   
Hardware: PC   
OS: Linux   
Whiteboard:
Bug Depends on:    
Bug Blocks: 354787, 357742    
Attachments:
Description Flags
model none

Description Steffen Pingel CLA 2011-09-16 16:51:14 EDT 
Steps:
1. Create a model with a class and a sub-package
2. Remove sub-package

java.lang.NullPointerException
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.getEObject(ResourceImpl.java:740)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getEObject(ResourceSetImpl.java:219)
	at org.eclipse.mylyn.modeling.emf.EmfStructureBridge.getDomainObjectForHandle(EmfStructureBridge.java:137)
	at org.eclipse.mylyn.modeling.emf.EmfStructureBridge.getChildHandles(EmfStructureBridge.java:155)
	at org.eclipse.mylyn.internal.context.core.InteractionContextManager.manipulateInterestForElementHelper(InteractionContextManager.java:1011)
	at org.eclipse.mylyn.internal.context.core.InteractionContextManager.manipulateInterestForElements(InteractionContextManager.java:930)
	at org.eclipse.mylyn.internal.context.ui.actions.AbstractInterestManipulationAction.run(AbstractInterestManipulationAction.java:105)
	at org.eclipse.mylyn.internal.modeling.gmf.ui.RemoveModelFromContextAction.run(RemoveModelFromContextAction.java:41)
	at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	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)
Comment 1 Steffen Pingel CLA 2011-09-16 16:51:47 EDT 
Created attachment 203532 [details]
model
Comment 2 Miles Parker CLA 2011-09-21 15:45:20 EDT 
Steffen, I'm not able to reproduce this, but it's likely that I'm just not following the right steps -- or perhaps inadvertently fixed it. How did you delete the package element?
Comment 3 Steffen Pingel CLA 2011-09-21 17:20:37 EDT 
I think I used the context menu in the Project Explorer. Should I try again with the latest build?
Comment 4 Miles Parker CLA 2011-09-21 18:06:40 EDT 
(In reply to comment #3)
> I think I used the context menu in the Project Explorer. Should I try again with
> the latest build?

Please, because I don't think it's possible to remove elements that way. :) Ecore tools supports browsing capabilities only, not editing in the project explorer.
Comment 5 Miles Parker CLA 2011-09-21 18:09:26 EDT 
Also, I'm noticing something else broken with the context menu so it's likely you won't be able to use it at all anyway. And also.. note that Papyrus breaks ecore tools bug 357296 so you'd need to be running without the papyrus plugins active.
Comment 6 Miles Parker CLA 2011-09-21 19:25:55 EDT 
OK, I've finally been able to reproduce this -- I was totally misunderstanding and thought you were referring to remove the element itself, not the interest.
Comment 7 Miles Parker CLA 2011-09-23 21:09:35 EDT 
OK, I think I finally squashed this. And I've got it under testing as well! (Not all of the UI part, but at least the relevant context mechanics.)