[jboss-user] [JBossCache] - Re: NPE when using optimistic locking with JbossCache 1.4.0.

[manik.surtani@jboss.com]

"kgrjb" wrote : 
  | the problem is there is a massive amount this error[data node is newer ...]. someone got the same problem in this thread and this problem was supposed to  be fixed in 1.4.1.CR1 - please correct me if im wrong.

It was not a problem that was fixed, just that there was unnecessary matching in some read-only cases where no validation was necessary.  This was fixed in 1.4.1.CR1, but if your threads are writing to the node, then this is correct behaviour.  

In general, as a concept, if you have a lot of threads concurrently writing to the same data, optimistic locking will throw such exceptions.

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