code: public static boolean allEquals(final String value, final String... strings) {
          if (strings != null) {
              for (final String s : strings) {
                  if (s == null && value != null || s != null && !s.equals(value)) {
                      return false;
                  }
              }
          } else {
              return value == null;
          }
          return true;
  
      }
docs: Return true if all strings are the same.