shiftBufData(); shiftBufData(); spaceLeft = buf.capacity() - buf.limit();
shiftBufData(); shiftBufData(); spaceLeft = buf.capacity() - buf.limit();
shiftBufData(); shiftBufData(); spaceLeft = buf.capacity() - buf.limit();
shiftBufData(); shiftBufData(); spaceLeft = buf.capacity() - buf.limit();