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Bug 337292

Summary: [Intro] Using the CustomizableIntroPart, after having changed the welcome page's content by registryChanged, moving to standby state causes an ArrayIndexOutOfBoundsException
Product: [Eclipse Project] Platform Reporter: Matthias Keck <matthias.keck+eclipsebugzilla>
Component: User AssistanceAssignee: Chris Goldthorpe <cgold>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: P3 CC: cgold, daniel_megert, pwebster
Version: 3.6.1   
Target Milestone: 3.7 M6   
Hardware: PC   
OS: Windows XP   
Whiteboard:
Attachments:
Description Flags
exception stack trace
none
Patch none

Description Matthias Keck CLA 2011-02-16 05:29:13 EST 
Build Identifier: 20100917-0705

When using the CustomizableIntroPart as the IIntroPart, any change to the org.eclipse.ui.intro.configExtension extension point leads to a call to org.eclipse.ui.intro.config.CustomizableIntroPart.registryChanged(IRegistryChangeEvent). After such a change the AbstractIntroPartImplementation's History object history gets cleared. An immediate change of the welcome page to standby state leads to a call of org.eclipse.ui.internal.intro.impl.model.History.getCurrentLocation() that causes an ArrayIndexOutOfBoundsException because the history vector has been cleared. 

Reproducible: Always

Steps to Reproduce:
1. Open welcome page and a Host OSGi Console.
2. Uninstall a bundle that contributes to the org.eclipse.ui.intro.configExtension extension point.
3. Double click on the welcome tab of the welcome page to send it to standby state.
Comment 1 Matthias Keck CLA 2011-02-16 05:30:49 EST 
Created attachment 189080 [details]
exception stack trace
Comment 2 Chris Goldthorpe CLA 2011-02-18 12:35:16 EST 
I can look into this. What are the steps to open the host OSGI console?
Comment 3 Paul Webster CLA 2011-02-18 12:37:22 EST 
(In reply to comment #2)
> I can look into this. What are the steps to open the host OSGI console?

In 3.7 you can open the Console view and use the Open Console toolbar dropdown.

PW
Comment 4 Chris Goldthorpe CLA 2011-02-18 13:05:49 EST 
Created attachment 189306 [details]
Patch
Comment 5 Chris Goldthorpe CLA 2011-02-18 13:06:19 EST 
Patch applied to HEAD, Fixed
Comment 6 Matthias Keck CLA 2011-02-21 01:58:52 EST 
Is it possible to back-integrate the patch into 3.6.x? Thanks.
Comment 7 Chris Goldthorpe CLA 2011-02-21 12:09:20 EST 
3.6.2 has just been released and is the last 3.6.x point release - I could commit this fix to the 3.6 maintenance stream since it is clearly low risk but no more builds are scheduled for 3.6.