code: public void putBytes(byte[] b, int boff, int len) {
          System.arraycopy(b, boff, _buffer, _offset, len);
          skip(len);
      }
docs: Put a counted array of bytes into the buffer. The length is not encoded.
  
  @param b
  byte array
  @param boff
  offset into byte array
  @param len
  number of bytes to encode