[jboss-jira] [JBoss JIRA] Created: (JBAS-5615) Synchronization mutex for clustered environments

[Nick Belaevski (JIRA)]

Synchronization mutex for clustered environments
------------------------------------------------

                 Key: JBAS-5615
                 URL: http://jira.jboss.com/jira/browse/JBAS-5615
             Project: JBoss Application Server
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
    Affects Versions: JBossAS-4.2.2.GA
            Reporter: Nick Belaevski
            Priority: Minor


Quote from http://www.jboss.com/index.html?module=bb&op=viewtopic&t=136590 : "they'll need to be thread safe or have access to them synchronized".

There's no object to synchronize against: SessionBasedClusteredSession doesn synchronization against itself:
   public void writeExternal(ObjectOutput out) throws IOException
   {
      synchronized (this)
      {
         ...
     }   
   
   } 

but application developers see the wrapped one (instance of StandardSessionFacade), so synchronizing against session object does not prevent from concurrency errors

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