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Bug 358823 - Checkbox wrongly enabled on Clean up preference page
Summary: Checkbox wrongly enabled on Clean up preference page
Status: RESOLVED FIXED
Alias: None
Product: JDT
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 3.8   Edit
Hardware: PC Windows 7
: P3 minor (vote)
Target Milestone: 3.8 M3   Edit
Assignee: Deepak Azad CLA
QA Contact:
URL:
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Blocks:
 
Reported: 2011-09-25 11:11 EDT by Deepak Azad CLA
Modified: 2011-09-30 06:20 EDT (History)
2 users (show)

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screenshot (85.75 KB, image/png)
2011-09-25 11:11 EDT, Deepak Azad CLA 		no flags Details
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Description Deepak Azad CLA 2011-09-25 11:11:10 EDT 
Created attachment 203971 [details]
screenshot

Win 7 and Eclipse 4.2 (I20110916-1615). In the past I have also seen this on Linux, but I think this used to work correctly on Win XP.

See attached screenshot.
Comment 1 Deepak Azad CLA 2011-09-30 06:20:31 EDT 
Not a OS specific issue, this depends on which JRE is used - 1.5, 1.6, 1.7, Oracle, IBM. On my Win 7 machine, this works fine with IBM JDK 1.5 and Oracle JDK 1.7, but does not work with IBM JDK 1.6.

The current behavior depends on the order of notification in java.util.Observable.notifyObservers(Object), which is different in different JREs. The javadoc of Observable class also says "The order in which notifications will be delivered is unspecified."

Hence, the right fix is to not rely on the order of notification, which is quite simple to do.

Fixed in HEAD. Commit - c1839c46b38bc8d387d9b5cd4408c694d4c413c7