[jboss-dev-forums] [Design of JBoss Transaction Services] - Re: Calling Synchronization.afterCompletion() more than once

[bstansberry@jboss.com]

Here's the reference chain from the classloader back into JBossTS.  There's a lot more besides this branching off from the com.arjuna.ats.arjuna.coordinator.TransactionReaper._list ref, but this is the gist of it.  I can e-mail someone the full report if it's wanted.


  | !--org.jboss.mx.loading.UnifiedClassLoader3 at 1085eba{ url=null ,addedOrder=49}
  | !--!--ClassLoaderReference @ class $Proxy80
  | !--!--!--InstanceOfReference:ToString=ClassloaderLeakStatefulSession:eza31jqw-8
  | !--!--!--!--FieldReference UndefinedField at org.jboss.ejb.StatefulSessionEnterpriseContext@13ba312=org.jboss.ejb.StatefulSessionEnterpriseContext at 13ba312
  | !--!--!--!--!--FieldReference private org.jboss.ejb.EnterpriseContext org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor$InstanceSynchronization.ctx=org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor$InstanceSynchronization at 122be0b
  | !--!--!--!--!--!--FieldReference private javax.transaction.Synchronization com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple._theSynch=com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple at ffa9d8
  | !--!--!--!--!--!--!--FieldReference private com.arjuna.ats.arjuna.coordinator.SynchronizationRecord com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator._currentRecord=BasicAction: a0b0e66:58c:45f838a3:41 status: ActionStatus.COMMITTED
  | !--!--!--!--!--!--!--!--FieldReference public com.arjuna.ats.arjuna.coordinator.Reapable com.arjuna.ats.internal.arjuna.coordinator.ReaperElement._control=com.arjuna.ats.internal.arjuna.coordinator.ReaperElement at c47220
  | !--!--!--!--!--!--!--!--!--FieldReference private final com.arjuna.ats.internal.arjuna.template.OrderedListElement com.arjuna.ats.internal.arjuna.template.OrderedListEntry._theElement=com.arjuna.ats.internal.arjuna.template.OrderedListEntry at 16e2b70
  | !--!--!--!--!--!--!--!--!--!--FieldReference private com.arjuna.ats.internal.arjuna.template.OrderedListEntry com.arjuna.ats.internal.arjuna.template.OrderedListEntry._next=com.arjuna.ats.internal.arjuna.template.OrderedListEntry at 1e5d007
  | !--!--!--!--!--!--!--!--!--!--!--FieldReference private com.arjuna.ats.internal.arjuna.template.OrderedListEntry com.arjuna.ats.internal.arjuna.template.OrderedListEntry._next=com.arjuna.ats.internal.arjuna.template.OrderedListEntry at bc8f01
  | !--!--!--!--!--!--!--!--!--!--!--!--FieldReference private com.arjuna.ats.internal.arjuna.template.OrderedListEntry com.arjuna.ats.internal.arjuna.template.OrderedListEntry._next=com.arjuna.ats.internal.arjuna.template.OrderedListEntry at 1509443
  | !--!--!--!--!--!--!--!--!--!--!--!--!--FieldReference private com.arjuna.ats.internal.arjuna.template.OrderedListEntry com.arjuna.ats.internal.arjuna.template.OrderedList._headOfList=com.arjuna.ats.internal.arjuna.template.OrderedList at 1c931fb
  | !--!--!--!--!--!--!--!--!--!--!--!--!--!--FieldReference private com.arjuna.ats.internal.arjuna.template.OrderedList com.arjuna.ats.arjuna.coordinator.TransactionReaper._list=com.arjuna.ats.arjuna.coordinator.TransactionReaper at 126c885
  | !--!--!--!--!--!--!--!--!--!--!--!--!--!--!--Root
  | !--!--!--!--!--!--!--!--!--!--!--!--!--!--!--Reference inside a method - com.arjuna.ats.internal.arjuna.coordinator.ReaperThread::run
  | !--!--!--!--!--!--!--!--!--!--!--!--!--!--!--FieldReference private com.arjuna.ats.arjuna.coordinator.TransactionReaper com.arjuna.ats.internal.arjuna.coordinator.ReaperThread.reaperObject=Thread[Thread-23,5,jboss]
  | !--!--!--!--!--!--!--!--!--!--!--!--!--!--!--!--Root
  | !--!--!--!--!--!--!--!--!--!--!--!--!--!--!--!--Reference inside a method - com.arjuna.ats.internal.arjuna.coordinator.ReaperThread::run

All the stuff about Reapable and ReaperThread is what led me to think this wasn't a long-term leak in JBossTS.

For more info on the test that produces this, see http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassloaderLeakUnitTestCase

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