Bugs item #600435, was opened at 2002-08-26 20:27
You can respond by visiting:
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Category: JBossTX
Group: v3.0 Rabbit Hole
Status: Open
Resolution: None
Priority: 5
Submitted By: Kyle Downey (kdowney)
Assigned to: Nobody/Anonymous (nobody)
Summary: deadlock detected erroneously
Initial Comment:
I have a session bean method calling a CMP Entity
method. They are set up as follows in terms of
transactions:
<container-transaction>
<method>
<ejb-name>KeySequence</ejb-name>
<method-
name>getNextKeyAfterIncrementingBy</method-name>
</method>
<trans-attribute>RequiresNew</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>commonsvc/KeyGenerator</ejb-
name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
The session call successfully creates the Entity EJB,
but the second call (to actually use the newly-created
Entity) from the same client, in what I would assume is
the same transaction, fails with this exception:
Caused by:
org.jboss.ejb.plugins.lock.ApplicationDeadlockException
: Application
deadlock detected: Current thread already has tx lock in
different transaction.
at
org.jboss.ejb.plugins.lock.BeanLockSupport.deadlockDet
ection(BeanLock
Support.java:182)
at
org.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock.w
aitForTx(QueuedP
essimisticEJBLock.java:283)
at
org.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock.d
oSchedule(Queued
PessimisticEJBLock.java:189)
at
org.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock.s
chedule(QueuedPe
ssimisticEJBLock.java:140)
at
org.jboss.ejb.plugins.EntityLockInterceptor.invoke
(EntityLockIntercep
tor.java:103)
at
org.jboss.ejb.plugins.EntityCreationInterceptor.invoke
(EntityCreation
Interceptor.java:69)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInte
rceptor.java:107)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti
ons(TxIntercep
torCMT.java:255)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke
(TxInterceptorCMT.java:6
0)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke
(SecurityInterceptor.
java:130)
at org.jboss.ejb.plugins.LogInterceptor.invoke
(LogInterceptor.java:203)
at org.jboss.ejb.EntityContainer.invoke
(EntityContainer.java:493)
at
org.jboss.ejb.plugins.local.BaseLocalContainerInvoker.inv
oke(BaseLoca
lContainerInvoker.java:301)
at org.jboss.ejb.plugins.local.EntityProxy.invoke
(EntityProxy.java:38)
Note that this is triggered by a single call to the session
EJB from a single client (a unit test), so it should not be
possible to create deadlock.
Database: Postgresql
JVM: JDK 1.3.1_03 (Sun)
JBoss: 3.0.1
--kd
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