code: public I_CmsValidationHandler getValidationHandler() {
  
          if (CmsStringUtil.isEmptyOrWhitespaceOnly(m_validationHandler)) {
              return new CmsDefaultValidationHandler();
          }
          try {
              I_CmsValidationHandler validationHandler = (I_CmsValidationHandler)Class.forName(
                  m_validationHandler).newInstance();
              if (LOG.isInfoEnabled()) {
                  LOG.info(
                      Messages.get().getBundle().key(
                          Messages.INIT_VALIDATION_HANDLER_CLASS_SUCCESS_1,
                          m_validationHandler));
              }
              return validationHandler;
          } catch (Throwable t) {
              LOG.error(
                  Messages.get().getBundle().key(Messages.INIT_VALIDATION_HANDLER_CLASS_INVALID_1, m_validationHandler),
                  t);
              return new CmsDefaultValidationHandler();
          }
      }
docs: Returns an instance of the configured validation handler.<p>
  
  @return an instance of the configured validation handler