When I test my application under load the createSession(true, 
Session.SESSION_TRANSACTED) method becomes my bottleneck.  I've seen it take up 
to 2 seconds to return.  

Can someone explain what is happening in this method that might be slowing 
things down?

Setup:
- JBoss AS 4.0.3SP1
- The application and the queue are running on the same server.
- The app has a servlet that does the following:
    1. Lookup the UserTransaction.
    2. Begin a new Transaction
    3. Get a Hibernate session
    4. Create a JMS Session
    5. Performs some database queries and inserts using Hibernate.
    6. Post a message to the queue
    7. Commit the UserTransaction

Thanks.

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