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Bug 330478 - Asynchronous access to maps in RuntimeClasspathProviderDelegate
Summary: Asynchronous access to maps in RuntimeClasspathProviderDelegate
Status: CLOSED DUPLICATE of bug 323375
Alias: None
Product: WTP ServerTools
Classification: WebTools
Component: jst.server (show other bugs)
Version: 3.0.5   Edit
Hardware: PC Windows XP
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Angel Vera CLA
QA Contact: Angel Vera CLA
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-11-17 12:00 EST by Krzysztof Kazmierczyk CLA
Modified: 2010-11-24 10:56 EST (History)
1 user (show)

See Also:

Attachments
patch making hash maps synchronized (1.32 KB, patch)
2010-11-17 12:04 EST, Krzysztof Kazmierczyk CLA 		no flags Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description Krzysztof Kazmierczyk CLA 2010-11-17 12:00:34 EST 
Build Identifier: 

The problem happens when you are trying to reopen project in Eclipse based product (RAD).
I was found by javacore analyzis. We found the thread running for a long time in java/util/HashMap.rehash. This is a full stack trace of this thread (IBM JVM):
at java/util/HashMap.rehash(Bytecode PC:97(Compiled Code)) at           
java/util/HashMap.rehash(Bytecode PC:6(Compiled Code)) at               
java/util/HashMap.putImpl(Bytecode PC:6(Compiled Code)) at              
java/util/HashMap.put(Bytecode PC:3(Compiled Code)) at                  
org/eclipse/jst/server/core/RuntimeClasspathProviderDelegate.resolveClas
spathContainerImpl(Bytecode PC:294(Compiled Code)) at                   
org/eclipse/jst/server/core/internal/RuntimeClasspathProviderWrapper.res
olveClasspathContainerImpl(Bytecode PC:12) at                           
org/eclipse/jst/server/core/internal/RuntimeClasspathContainer.getClassp
athEntries(Bytecode PC:30) at                                           
org/eclipse/jdt/internal/core/JavaModelManager.containerPutIfInitializin
gWithSameEntries(Bytecode PC:69) at                                     
org/eclipse/jdt/internal/core/SetContainerOperation.executeOperation(Byt
ecode PC:48) at                                                         
org/eclipse/jdt/internal/core/JavaModelOperation.run(Bytecode           
PC:43(Compiled Code))                                                   


Reproducible: Couldn't Reproduce
Comment 1 Krzysztof Kazmierczyk CLA 2010-11-17 12:04:51 EST 
Created attachment 183318 [details]
patch making hash maps synchronized

This is a patch which makes synchronization in hash maps used by org/eclipse/jst/server/core/RuntimeClasspathProviderDelegate.resolveClasspathContainerImpl
Comment 2 Krzysztof Kazmierczyk CLA 2010-11-18 02:46:48 EST 
We also need a backport to 3.0.5
Comment 3 Angel Vera CLA 2010-11-24 10:56:05 EST 
Thanks for the patch. The changes are very similar to bug 323375, also opened by you. I am marking this one as duplicated.

*** This bug has been marked as a duplicate of bug 323375 ***