private void deflate (Object o, int lockOffset) {
private void deflate (Object o, Offset lockOffset) {
  private void deflate (Object o, int lockOffset) {    if (VM.VerifyAssertions) {      VM._assert(lockedObject == o);      VM._assert(recursionCount == 0);      VM._assert(entering.isEmpty());      VM._assert(waiting.isEmpty());    }    if (STATS) deflations++;    VM_ThinLock.deflate(o, lockOffset, this);    lockedObject = null;    free(this);  }