code: protected boolean hasReadElfTag(String tag) {
          String tagValue = getReadElfTag(tag);
          return (tagValue != null && !tagValue.isEmpty());
      }
docs: /*
  this method will determine if a specified tag exists from the elf info in the '/proc/self/exe' program
  (this method is used to help determine the HARD-FLOAT / SOFT-FLOAT ABI of the system)