title: JBoss JMX twiddle Runtime not registered
body: <p>I have a problem with the <code>twiddle</code> script on a Solaris 10 server.
  I have to read some properties e.g <code>jboss.system</code> and others.
  All properties depending on the jboss server are fine, but when I try
  to read properties from <code>java.lang</code>, the following error occurs:</p>
  
  <pre><code>javax.management.InstanceNotFoundException: java.lang:type=Runtime is not registered.
  </code></pre>