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Bug 362244

Summary:	NPE in DebugContextManager clicking in global toolbar
Product:	[Eclipse Project] Platform	Reporter:	John Arthorne <john.arthorne>
Component:	Debug	Assignee:	Platform-Debug-Inbox <platform-debug-inbox>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	normal
Priority:	P3	CC:	pawel.1.piech
Version:	4.2
Target Milestone:	---
Hardware:	PC
OS:	Windows 7
Whiteboard:	stalebug

Description John Arthorne

2011-10-27 17:06:20 EDT

I20111014-1625 (4.2 stream)

I got this NPE by clicking the button to the left of the "stop" button in the workbench (global) debug toolbar.

Caused by: java.lang.NullPointerException
	at org.eclipse.debug.internal.ui.contexts.DebugContextManager.createService(DebugContextManager.java:136)
	at org.eclipse.debug.internal.ui.contexts.DebugContextManager.getContextService(DebugContextManager.java:195)
	at org.eclipse.debug.ui.actions.DebugCommandAction.getDebugContextService(DebugCommandAction.java:291)
	at org.eclipse.debug.ui.actions.DebugCommandAction.getContext(DebugCommandAction.java:236)
	at org.eclipse.debug.ui.actions.DebugCommandAction.run(DebugCommandAction.java:253)
	at org.eclipse.debug.internal.ui.commands.actions.DebugCommandActionDelegate.run(DebugCommandActionDelegate.java:70)
	at org.eclipse.debug.internal.ui.commands.actions.DebugCommandActionDelegate.runWithEvent(DebugCommandActionDelegate.java:79)
	at org.eclipse.ui.internal.handlers.ActionDelegateHandlerProxy.execute(ActionDelegateHandlerProxy.java:285)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:68)
	at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)

Comment 1 Pawel Piech

2011-10-27 18:17:16 EDT

Thank you for the trace.  It implies that the action was either initialized with a null IWorkbenchWindow, or was ran after being disposed.  Did this occur in context of starting or shutting down the IDE?

Comment 2 Pawel Piech

2011-10-27 18:18:59 EDT

BTW, it's the "disconnect" action, which applies only to remote debugging in java, though it's more useful with CDT.  Do you think it should be hidden by default?

Comment 3 John Arthorne

2011-10-31 14:34:23 EDT

It wasn't at startup or shutdown, but it was immediately after I enabled the global debug toolbar for the first time. 

And yes it was the "Disconnect" action. For some reason tooltips weren't working at the time, but I see the tooltips now.

Comment 4 Lars Vogel

2019-11-14 03:32:29 EST

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

If the bug is still relevant, please remove the "stalebug" whiteboard tag.