The XTS 1.1. client and service SOAP handlers which serialize and deserialize the transaction context into/out of web service requests are not generating the headers correctly. During serialization the context is embedded into a wscoor:CoordinationContext header element, i.e. the message contains two nested elements with this tag. The mistake is consistent in the deserialization code so it does not show during normal.JBoss to JBoss operation. However., it does break interoperability.