This property, new in Hyperic 4.6.5, specifies the port upon which the Hyperic Server JVM listens for JMX requests, if JMX is enabled. By default, JMX is disabled. The property that controls whether or not JMX is enabled is server.jms.usejmx. The primary reason to enable JMX is to enable monitoring of the Hyperic Server's internal ActiveMQ Server. With the port closed, the a Hyperic Agent on the same platform as the Hyperic Server will discover ActiveMQ, but cannot obtain ActiveMQ metrics.