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From "Jarek Gawor (JIRA)" <j...@apache.org>
Subject [jira] Commented: (GERONIMO-3780) MDB unable to access JNDI in ejbPostCreate
Date Wed, 20 Feb 2008 18:09:45 GMT

    [ https://issues.apache.org/jira/browse/GERONIMO-3780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12570780#action_12570780
] 

Jarek Gawor commented on GERONIMO-3780:
---------------------------------------

If I'm understanding the code correctly, there is a chance with this patch where the notifyAll()
is called before another thread enters wait() and therefore that thread will block until another
notifyAll() is called.
Assume thread A gets suspended just before executing "deploymentInfo.set(EjbDeployment.class,
this);" line and thread B gets suspended right after executing "if (deploymentInfo.get(EjbDeployment.class)
== null ){" line. Now, A gets awaken and it finishes executing the start() method (and notifyAll()
is called) then thread B awakens and continues executing and it enters the wait() method.
 Since notifyAll() was already called, thread B will just block until some other thread calls
notifyAll() (which might not happen for a while or at all).


> MDB unable to access JNDI in ejbPostCreate
> ------------------------------------------
>
>                 Key: GERONIMO-3780
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-3780
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: OpenEJB
>    Affects Versions: 2.1
>         Environment: All
>            Reporter: Manu T George
>         Attachments: G3780-r628632.patch
>
>
> An MDB is unable to access JNDI in ejbPostCreate if there are messages in the queue to
which it is listening during server startup, say after a server crash 

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