ESB v6.5.1，集群部署后卸载某一个Module空指针异常

问题描述：集群部署后卸载某一个Module空指针异常。

java.lang.NullPointerException
at com.primeton.tip.governor.core.resource.MBeanHelper.getMBeanHelper(MBeanHelper.java:27)
at com.primeton.tip.governor.service.config.impl.VariableConfigManage.getResource(VariableConfigManage.java:192)
at com.primeton.tip.governor.service.config.impl.VariableConfigManage.getVariableKeys(VariableConfigManage.java:82)
。。。
[governor][2016-04-14 12:00:10,882][ERROR][com.primeton.ext.engine.core.processor.AbstractPageFlowProcessor:371] error [com.primeton.tip.governor.management.ModulesManage.flow?_flowKey=529f34ec-2c86-4280-affc-6c96161e5563.null]
java.lang.NullPointerException
at com.primeton.tip.governor.service.config.impl.VariableConfigManage.getVariableKeys(VariableConfigManage.java:88)
at com.primeton.tip.governor.management.ContributionManage.deleteVariableResource(ContributionManage.java:2129)

解决办法：有补丁ESB_6.5.1.0_20150316_P1，请向普元公司售后（cservice@primeton.com）索取。