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Possible mem leak in TX synchronizer on afterCompletion() phase
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created by <a href="https://community.jboss.org/people/cheezzario">Andrey Smirnov</a> in <i>IronJacamar</i> - <a href="https://community.jboss.org/message/831719#831719">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Let me introduce the problem</p><p>App server ( jboss-as-7.1.1.Final ) which is a part of complex distributed app using CORBA for communication fails with OutOfMemoryError</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I've investigated the problem and seems like root cause is inability  to clean up txSynchs ( and locks ) maps resided in org.jboss.jca.core.connectionmanager.transaction.TransactionSynchronizer class.</p><p>More detailed:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Collections mentioned above should be cleaned up in afterCompletion() method but TX is unavailable at that stage, so Transaction.hashCode() returns -1 which leads to dangled TX associations.</p><p>Right now I don't understand why javax.transaction.Transaction is used as a key in this maps? For me it seems like this code wil always fail.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I've attached modified source code of  TransactionSynchronizer which I used during investigation and partial app log with records specific to one TX.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Regards, Andrey.</p></div>
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