block.setBeginKey(key.getData());
block.setBeginData(data.getData());
}
/* Calculate rollingChksum on "key|data" bytes. */
adler32.reset();
adler32.update(key.getData(), 0, key.getData().length);
adler32.update(data.getData(), 0, data.getData().length);
final int xi = (int) adler32.getValue();
a += xi;
b += a;