code: public static boolean isStringArrayEmpty(String[] arr) {
          boolean empty = true;
          if (arr != null) {
              if (arr.length > 0) {
                  for (String s : arr) {
                      if (StringUtils.isNotBlank(s)) {
                          empty = false;
                          break;
                      }
                  }
              }
          }
          return empty;
      }
docs: Determine if the string array is empty. It is considered empty if zero length or all items are blank strings;
  
  @param arr
  @return