code: public static CmsCoreProvider get() {
  
          if (INSTANCE == null) {
              try {
                  INSTANCE = new CmsCoreProvider();
              } catch (SerializationException e) {
                  CmsErrorDialog.handleException(
                      new Exception(
                          "Deserialization of core data failed. This may be caused by expired java-script resources, please clear your browser cache and try again.",
                          e));
              }
          }
          return INSTANCE;
      }
docs: Returns the client message instance.<p>
  
  @return the client message instance