The connection monitor MBean has an object name of the following form:
com.sun.messaging.jms.server:type=Connection,subtype=Monitor,id=connectionID
where connectionID is the connection identifier. For example:
com.sun.messaging.jms.server:type=Connection,subtype=Monitor,id=7853717387765338368
The utility class MQObjectName provides a static method, createConnectionMonitor, for constructing object names of this form.