Bug 3436

Summary:	NPW in TypeHierarchy (1GL0L8D)
Product:	[Eclipse Project] JDT	Reporter:	Martin Aeschlimann <martinae>
Component:	Core	Assignee:	Jerome Lanneluc <jerome_lanneluc>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P2
Version:	2.0
Target Milestone:	2.0 M1
Hardware:	All
OS:	Windows NT
Whiteboard:

Description Martin Aeschlimann

2001-10-10 22:55:05 EDT

MA (03.10.2001 11:44:04)
	Found the walkback in my console. Could not reproduce.

2 org.eclipse.core.resources 2 Problems occurred when invoking code from plug-in: org.eclipse.core.resources.
java.lang.NullPointerException
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffectedByPackageFragmentRoot(TypeHierarchy.java:908)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffected(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffectedByChildren(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffectedByJavaProject(TypeHierarchy.java:872)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffected(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffectedByChildren(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffected(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.isAffected(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.elementChanged(TypeHierarchy.java(Compiled Code))
	at org.eclipse.jdt.internal.core.JavaModelManager.fire(JavaModelManager.java(Compiled Code))
	at org.eclipse.jdt.internal.core.JavaModelManager.resourceChanged(JavaModelManager.java(Compiled Code))
	at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java(Compiled Code))
	at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java(Compiled Code))
	at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code))
	at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java(Compiled Code))
	at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java(Compiled Code))
	at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java(Compiled Code))
	at org.eclipse.core.internal.resources.Workspace.broadcastChanges(Workspace.java(Compiled Code))
	at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java(Compiled Code))
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java(Compiled Code))
	at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:78)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:98)


NOTES:

Comment 1 Philipe Mulet

2001-10-11 09:57:39 EDT

Please do a code examination, and close if not obvious.

Comment 2 Jerome Lanneluc

2001-10-15 07:31:36 EDT

Must be a concurrency problem: the hierarchy is notified with an 
ElementChangedEvent while it is refreshed. 

Added protection in TypeHierarchy.elementChanged(ElementChangedEvent) to 
process the event only if the hierarchy is activated.

Comment 3 DJ Houghton

2001-10-29 17:13:56 EST

PRODUCT VERSION:
	202