@Override
      public boolean done() {
        bean = service.getMBeanProxy(memberMBeanName, MemberMXBean.class);
        boolean done = bean != null;
        return done;
      }
Utility Method to obtain MemberMXBean proxy reference for a particular Member

@param member the member
@return a reference to MemberMXBean
geode-dunit/src/main/java/org/apache/geode/management/MBeanUtil.java