Thank you for advice.
It immediately verified it.
Example Code.
UserTransaction ut = EJBClient.getUserTransaction("node");
It was necessary to specify the node name for the argument and it fought hard though
UserTransaction was able to be done correctly by referred way (EJBClient.getUserTransaction).
Afterwards, operation coughed in adding jboss.node.name to SystemProperty of the console of JBossAS7,
preserving an arbitrary name putting it, and using it as a node name.
https://community.jboss.org/servlet/JiveServlet/downloadImage/2-738986-18686/450-224/node.PNG
