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https://issues.apache.org/jira/browse/AMQ-3465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Bish updated AMQ-3465:
------------------------------

    Fix Version/s: 5.6.0
    
> TransactionContext produces errors in concurrent environment
> ------------------------------------------------------------
>
>                 Key: AMQ-3465
>                 URL: https://issues.apache.org/jira/browse/AMQ-3465
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.5.0
>         Environment: Windows XP SP2, Oracle JDK 1.6.0_23
>            Reporter: Alexei Akimov
>            Assignee: Timothy Bish
>             Fix For: 5.6.0
>
>
> Method "isInXATransaction" of class org.apache.activemq.TransactionContext 
> seems to be implemeted incorrectly. Here is the code:
> public boolean isInXATransaction() {
>     return (transactionId != null && transactionId.isXATransaction()) || 
> !ENDED_XA_TRANSACTION_CONTEXTS.isEmpty();
> }
> Map "ENDED_XA_TRANSACTION_CONTEXTS" is a static field. TransactionContext 
> instances are used for both outbound and inbound communications. Suppose a 
> thread creating a new non-transactional session. It calls isInXATransaction 
> and gets true, just because another thread is completing transactional 
> message delivery at the same time. After XAResource.end() call but before 
> XAResource.commit() call the map is not empty and it results in a 
> JMSException in the first thread (see 
> org.apache.activemq.ra.ManagedTransactionContext.setUseSharedTxContext(boolean)").

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