2 Replies Latest reply: May 26, 2011 6:41 AM by paul_m RSS

getRollbackOnly() behaving strangely with inheritance in JBoss 6

paul_m Newbie

The following issue shows up with jboss-6.0.0.Final but works as I'd expect with jboss-5.1.0.GA.  Also, although I've not tested this extensively, I've only been aware of this problem when using EJB3 annotations.

 

The EJB spec' seems pretty clear that EJBContext.getRollbackOnly() should throw java.lang.IllegalStateException if a bean's TransactionAttribute is 'NOT_SUPPORTED'.

 

I have a base class with a method that uses getRollbackOnly().  In this example hasTxn() simply uses getRollbackOnly() to determine whether the method is called in the context of a container-managed transaction:

 

import javax.annotation.Resource;
import javax.ejb.SessionContext;

public class TxnTestSSBBase
{
    @Resource SessionContext ctx;

    public boolean hasTxn()
    {
        try
        {
            ctx.getRollbackOnly();
            return true;
        }
        catch (IllegalStateException e)
        {
            return false;
        }
    }
}

 

 

I then have an EJB (in this example a Stateless Session Bean) that extends the base class and implements a remote interface with the hasTxn() method.  Note that the bean's TransactionAttribute is NOT_SUPPORTED, and that the hasTxn() method in the sub-class (TxnTestSSB) is currently commented out so the super-class's implementation is called directly.

 

import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.ejb.TransactionManagement;
import javax.ejb.TransactionManagementType;

@TransactionManagement(TransactionManagementType.CONTAINER)
@TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED)
@Stateless
public class TxnTestSSB extends TxnTestSSBBase implements TxnTestSSBRemote
{
/*
    public boolean hasTxn()
    {
        return super.hasTxn();
    }
*/
}

 

 

Deployed in JBoss 5.1 hasTxn() returns 'false' which is what I'd expect.  But if I deploy it in JBoss 6.0 hasTxn() returns 'true' - i.e. getRollbackOnly() completes without throwing an IllegalStateException in spite of the NOT_SUPPORTED TransactionAttribute.

 

Interestingly, if I implement hasTxn() in TxnTestSSB, even if the implementation simply calls the super class (i.e. uncomment the commented-out code shown above), it correctly returns 'false' in JBoss 6.0.

 

Am I missing something here?  Is this a known bug?  I've searched around a little, but maybe the underlying issue is broader than getRollbackOnly()/setRollbackOnly() and so I've missed it, not knowing quite what to search on?

 

Thanks for any help anyone can provide,

 

Paul.