private static String unsignedToString(final int value){
  if (value >= 0) {
    return Integer.toString(value);
  }
 else {
    return Long.toString(((long)value) & 0x00000000FFFFFFFFL);
  }
}

private static String unsignedToString ( final int value ) { if ( value >= 0 ) { return Integer . toString ( value ) ; } else { return Long . toString ( ( ( long ) value ) & 0x00000000FFFFFFFFL ) ; } }
convert an unsigned 32 - bit integer to a string .
