public TransactionResponseHandler() throws NamingException 
{
      userTransaction =
      	(UserTransaction) new InitialContext().
      	lookup(Constants.USER_TRANSACTION_JNDI_NAME);
}

 protected  void endTransaction(MessageContext msgContext,
    boolean commit) throws AxisFault 
{
      Object tx =
         msgContext.getProperty(Constants.TRANSACTION_PROPERTY);
      if (tx != null) {
         try {
            if (commit) {
               userTransaction.commit();
            } else {
               userTransaction.rollback();
            }
         } catch(RollbackException e) {
            throw new AxisFault("Could not rollback tx.",e);
         } catch(SystemException e) {
            throw new AxisFault("Could not influence tx setting.",e);
         } catch(HeuristicMixedException e) {
            throw new AxisFault("Could not commit tx.",e);
         } catch(HeuristicRollbackException e) {
            throw new AxisFault("Could not commit tx.",e);
         } finally {
            msgContext.setProperty(Constants.TRANSACTION_PROPERTY, null);
         }
      }
}

 public  void invoke(MessageContext msgContext) throws AxisFault 
{
      endTransaction(msgContext,true);
}

 public  void onFault(MessageContext msgContext) 
{
      try{
         endTransaction(msgContext,false);
      } catch(AxisFault e) {
      }
}