附：JMX 1.2 change log 。New interface NotificationEmitter extends NotificationBroadcaster 。Open MBeans made mandatory 。New interface StandardMBean generalizes standard MBean design patterns 。Model MBean descriptor fields updated 。ObjectName class updated 。MBeanServerDelegate updated 。New MBeanServerConnection interface 。Class loader repository redesigned and class loading behavior clarified 。New class MBeanServerBuilder allows alternative MBean server implementations 。Getters and setters cannot be invoked through the invoke method 。New MBeanServerInvocationHandler class facilitates construction of MBean proxies 。Timer service allows past times and supports fixed-rate execution 。Monitor service can monitor the same attribute in several MBeans 。New “Security” chapter added
