code: public static int hash(byte[] data, int offset, int length, int seed) {
  	    return hash(ByteBuffer.wrap(data, offset, length), seed);
  	  }
docs: Hashes bytes in part of an array.
  @param data    The data to hash.
  @param offset  Where to start munging.
  @param length  How many bytes to process.
  @param seed    The seed to start with.
  @return        The 32-bit hash of the data in question.