docs: protected static Object[] doBean(MBeanServerConnection mbsc, ObjectInstance instance, String[] command)
  			throws Exception {
  		// If no command, then print out list of attributes and operations.
  		if (command == null || command.length <= 0) {
  			return new String[] { listOptions(mbsc, instance) };
  		}
  
  		// Maybe multiple attributes/operations listed on one command line.
  		Object[] result = new Object[command.length];
  		for (int i = 0; i < command.length; i++) {
  			result[i] = doSubCommand(mbsc, instance, command[i]);
  		}
  		return result;
  	}