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  1. JBoss Enterprise Application Platform
  2. JBEAP-22152

[GSS](7.4.z) EJBCLIENT-408 - Racecondition in RemotingEJBDiscoveryProvider is causing a NullPointerException

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      A race condition in RemotingEJBDiscoveryProvider is causing a NullPointerException in line 126 during autoboxing the Long value.

      This can happen in the case that Thread A is executing line 123 with the containsKey and a return value of true, then Thread B is removing that entry from the Map, while Thread A is calling get in line 126, which will result in a return value of null, leading to a NullPointerException during autoboxing, see:

      122     private boolean haveNotExpiredFailedDestination(URI uri) {
123         if(!failedDestinations.containsKey(uri))
124             return false;
125         else {
126             long failureTimestamp = failedDestinations.get(uri);
127             long delta = System.nanoTime() - failureTimestamp;
128             return delta < DESTINATION_RECHECK_INTERVAL;
129         }
130     }

              tadamski@redhat.com Tomasz Adamski
              rhn-support-jbaesner Joerg Baesner
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