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Bug 330478

Summary:

Asynchronous access to maps in RuntimeClasspathProviderDelegate

Product:

[WebTools] WTP ServerTools

Reporter:

Krzysztof Kazmierczyk <kazm>

Component:

jst.server

Assignee:

Angel Vera <arvera>

Status:

CLOSED DUPLICATE

QA Contact:

Angel Vera <arvera>

Severity:

normal

Priority:

CC:

kazm

Version:

3.0.5

Target Milestone:

---

Hardware:

OS:

Windows XP

Whiteboard:

Attachments:

Description	Flags
patch making hash maps synchronized	none

Description Krzysztof Kazmierczyk

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

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

2010-11-18 02:46:48 EST

We also need a backport to 3.0.5

Comment 3 Angel Vera

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 ***