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From "bhupesh bansal (JIRA)" <>
Subject [jira] Commented: (POOL-146) Thread deadlock issue in GenericKeyedObjectPool borrowObject()
Date Sun, 05 Jul 2009 21:15:14 GMT


bhupesh bansal commented on POOL-146:

Many Thanks Mark, 

Can you attach the patch to this bug ?? I would like to see the fix I spent considerable time
looking into the commons-pools code base and couldn't find the issue and yes global Latch
was not a solution I understood after looking into the code later. 

BTW have you looked into ArrayBlockingQueue from java 1.5.0 onwards in their concurrent package
?? I was thinking using that would clean up the code a lot ?

> Thread deadlock issue in GenericKeyedObjectPool borrowObject()
> --------------------------------------------------------------
>                 Key: POOL-146
>                 URL:
>             Project: Commons Pool
>          Issue Type: Bug
>    Affects Versions: 1.5.1
>            Reporter: bhupesh bansal
>             Fix For: 1.5.2
> I am a new user of common-pools and I was having some weird behavior with GenericKeyedObjectPool
> GenericKeyedObjectPool: 1074:1077
>      public Object borrowObject(Object key) throws Exception {
>         long starttime = System.currentTimeMillis();
>         Latch latch = new Latch(key);     ---> This object is tried to be used for
managing pool size by calling wait()/notify() 
> My thinking is this should be a shared/global object and not created new for each call

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