jbossas/jboss-as — pull request #3261 by jmesnil (2012-10-17 10:24:47+00:00)
Title: [7.1][AS7-5767] marshall empty messaging subsystem

check whether the messaging subsystem has defined any hornetq-server
before marshalling them

the bug does not occur in AS7 master branch since https://github.com/jbossas/jboss-as/commit/d6c93c2e5a4677a15ecc5de72010f4e1e9fc722a