code: public String getValidationMethodName() {
          if (isValidated() == false) {
              throw new IllegalStateException();
          }
          if (getValidation().equals("notNull") ||
                  getValidation().equals("notEmpty") ||
                  getValidation().equals("notBlank")) {
              return "JodaBeanUtils." + getValidation();
          }
          return getValidation();  // method in bean or static
      }
docs: Gets the validation method name.
  @return the method name