JBoss 7.1: java.lang.IllegalStateException: No 'jboss' MBeanServer found - jboss

Question

My application is deployed on JBoss 7.1 (standalone).
I am getting an exception on the following line:
MBeanServerConnection server = MBeanServerLocator.locateJBoss();
The exception is:
JBoss: java.lang.IllegalStateException: No 'jboss' MBeanServer found!
That code above worked fine when the app was deployed on JBoss 5.
From what I was reading online, the code is supposed to work only when it's called from the same JVM in which the MBeanServer was created. Otherwise it's a remote call and I have to use JNDI. But is it not a local call (same JVM - i.e. the JBoss JVM)? How did it work on JBoss 5 then?
How do I make it work on JBoss 7.1 standalone, without changing this specific code?

Answer 1

Here is the solution:
https://community.jboss.org/thread/221708
Quote:
Above problem is dueto locateJboss implementation that is compatible with older version of Jboss. The MBeanServer used by JBoss 7 (by default) is the platform MBeanServer. The class name iscom.sun.jmx.mbeanserver.JmxMBeanServer and the default domain is DefaultDomain. Accordingly, you can simply use:
java.lang.management.ManagementFactory.getPlatformMBeanServer()
Alternatively:
for(MBeanServer server: javax.management.MBeanServerFactory.findMBeanServer(null)) {
if("DefaultDomain".equals(server.getDefaultDomain())) return server;
}
throw new Exception("Failed to locate MBeanServer");
On another note, jboss.system:type=ServerInfo object name doesn't work in AS 7.1 I had to use JVM specific parameters to nail down to MBean attributes. 'java.lang:type=Memory' and attribute as 'HeapMemoryUsage'.