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From "Michael Dick (JIRA)" <>
Subject [jira] Commented: (OPENJPA-295) ArrayIndexOutofBoundsException when under load and within a managed Transaction
Date Thu, 02 Aug 2007 22:27:52 GMT


Michael Dick commented on OPENJPA-295:

I agree with Marc and Craig that some variation of solution 2 is the best option (I see Marc's
patch as one of these variations).

That being said I think there are cases where we will need to return a separate TransactionFacade
instance if the transaction key is different. 

If the container has suspended that current transaction and started a new one (a bean method
with TX_REQUIRES_NEW calls another bean method with TX_REQUIRES_NEW) we'll need a separate
key to the _transactions collection. If they used the same key then we'd run into problems
the first time an AfterCompletion event is fired. 

Between Marc and Craig's patches I think we're pretty close, I just haven't had a change to
play with it much (yet) today. 

> ArrayIndexOutofBoundsException when under load and within a managed Transaction
> -------------------------------------------------------------------------------
>                 Key: OPENJPA-295
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jpa
>    Affects Versions: 1.0.0
>         Environment: openjpa running under WebSphere development builds, as well as Geronimo
development builds
>            Reporter: Rob Wisniewski
>            Priority: Blocker
>         Attachments: OPENJPA-295.diff.txt, openjpa-295.patch, OPENJPA295.patch
> Recent development builds of our WAS products as well as the Geronimo project are seeing
exceptions when running under load.  An example of the exception is below:
> Caused by: 
> java.lang.ArrayIndexOutOfBoundsException
> 	at java.util.ArrayList.add(
> 	at org.apache.openjpa.kernel.AbstractBrokerFactory.syncWithManagedTransaction(
> 	... 39 more
> This is the deepest trace I can get with the actual exception, but the wrappering exception
shows this stack trace for geronimo:
> <1.0.0-SNAPSHOT-SNAPSHOT nonfatal general error> org.apache.openjpa.persistence.PersistenceException:
> 	at org.apache.openjpa.kernel.AbstractBrokerFactory.syncWithManagedTransaction(
> 	at org.apache.openjpa.kernel.BrokerImpl.initialize(
> 	at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(
> 	at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(
> 	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
> 	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(
> 	at org.apache.geronimo.persistence.CMPEntityManagerTxScoped.createEntityManager(
> 	at org.apache.geronimo.persistence.CMPEntityManagerTxScoped.getEntityManager(
> 	at org.apache.geronimo.persistence.CMPEntityManagerTxScoped.createNamedQuery(
> 	at org.apache.geronimo.samples.daytrader.ejb3.TradeSLSBBean.getClosedOrders(
> This is happening in two separate products with two different JTA implementations, and
also both of these products were working at one point.
> Any ideas?

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