远程JMX连接和通知问题

I'm trying to follow one example from the Java API documentation (https://download.oracle.com/javase/1.5.0/docs/api/java/lang/management/MemoryPoolMXBean.html#Notification) related to the UsageThreshold property of the Memory Pool Beans and notifications. My intention is to do something every time the pool overcomes the threshold. This is the sample code:I'm trying to follow one example from the Java