code: public WrappedByteBuffer putUnsignedAt(int index, int v) {
          _checkForWriteAt(index, 1);
          byte b = (byte)(v & 0xFF);
          return this.putAt(index, b);
      }
docs: Puts an unsigned single byte into the buffer at the specified position.
  
  @param v the unsigned byte as an int
  
  @return the buffer