code: public Method createObjectMethod(Object ownerClass, String methodName,
              Class[] paramTypes) {
          Method m = null;
          try {
              m = ownerClass.getClass().getMethod(methodName, paramTypes);
          } catch (NoSuchMethodException nsme) {
              String errS = " NoSuchMethod:" + methodName + " in className:"
                      + ownerClass.getClass().getName() + " or method's args type error";
              Debug.logError(errS, module);
          } catch (Exception ex) {
              Debug.logError("[JdonFramework] createMethod error:" + ex, module);
          }
          return m;
      }
docs: create a method object
  @param ownerClass
  @param methodName
  @param paramTypes
  @return