[jbpm-users] jta transactions jbpm 4

Hi, Today I tried to use jta transactions with jbpm 4 by including jbpm.tx.jta.cfg.xml in jbpm.cfgxml an got the following JbpmException: error: no element parser for tag jta-transaction-interceptor in category interceptor When I quickly checked the source I noticed there is no binding and Interceptor class for it. Has anybody on the forum already succesfully used jbpm 4 with jta? If so what do I need to do? Thanks for any suggestions, Marco