docs: public Collection<String> listOperationNames() {
          List<String> list = new ArrayList<String>();
          try {
              MBeanOperationInfo[] operations = beanInfo.getOperations();
              for (MBeanOperationInfo operation : operations) {
                  list.add(operation.getName());
              }
          } catch (Exception e) {
              throwException("Could not list operation names. Reason: ", e);
          }
          return list;
      }