attribute.setGetMethod("getInterval");
      attribute.setSetMethod("setInterval");
      attribute.setDescription("The interval in milliseconds between checks of VM memory and threads");
      attribute.setName("Interval");
      attribute.setType("int");
      xmbean.addAttribute(attribute);
      XMBeanOperationMetaData operation = new XMBeanOperationMetaData();
      operation.setDescription("Access the last HistoryLength monitor reports");
      operation.setName("history");
      operation.setReturnType("java.lang.String");