The J2EE management MBeans implement, and in some cases extend, the management hierarchy as defined by JSR 77, which specifies the management model for the whole J2EE platform. One of the management APIs implemented in JSR 77 is the JMX API.
The implementation of JSR 77 in AMX offers access to and monitoring of MBeans via J2EE management MBeans, by using the getMonitoringPeer() and getConfigPeer() methods.
The J2EE management MBeans can be thought of as the central hub from which other MBeans are obtained.
The Group Attribute of J2EE management MBeans, obtained from getGroup(), has a value of com.sun.appserv.management.base.AMX.GROUP_JSR77.