working OK with jboss-as-7.1.1.Final but failed with our 5_BRANCH jboss-as-7.2.0.Alpha1-SNAPSHOT
Caused by: java.lang.RuntimeException: JBAS018757: Error getting reflective information for class com.jboss.jbosstm.xts.demo.services.theatre.TheatreServiceBA with ClassLoader ModuleClassLoader for Module \"deployment.xts-demo.ear.xts-demo-war-5.0.0.M2-SNAPSHOT.war:main\" from Service Module Loader
Caused by: java.lang.NoClassDefFoundError: com/arjuna/wst/SystemException

in jboss-as-7.2.0.Alpha1-SNAPSHOT, it deploys xts-demo-war which miss the dependency before xts-demo-webservices.

so it looks like we need to specify the order of war in xts-demo.ear