How to use

DatabaseChangeLogLock

in

liquibase.lockservice

private boolean lockIsStuck() throws LockException {
  DatabaseChangeLogLock lock = getDatabaseChangeLogLock();
  if (lock == null) {
    return false;
  }
  Date lockGranted = lock.getLockGranted();
  Date currentDate = new Date();
  LOGGER.info(format(Messages.CURRENT_LOCK, lockGranted, lock.getLockedBy()));
  LOGGER.info(format(Messages.CURRENT_DATE, currentDate));
  return hasTimedOut(lockGranted, currentDate);
}

private static void releaseLockOnTimeout(Liquibase liquibase)
    throws LiquibaseException, UnsupportedEncodingException {
  if (LOCK_RELEASE_TIMEOUT_MINUTES <= 0) {
    return;
  }
  for (DatabaseChangeLogLock lock : liquibase.listLocks()) {
    long elapsedMinutes = TimeUnit.MILLISECONDS
        .toMinutes(System.currentTimeMillis() - lock.getLockGranted().getTime());
    if (elapsedMinutes >= LOCK_RELEASE_TIMEOUT_MINUTES) {
      ByteArrayOutputStream os = new ByteArrayOutputStream();
      liquibase.reportLocks(new PrintStream(os));
      logger.warning(String.format("Releasing liquibase locks after %d minutes: %s",
          elapsedMinutes, os.toString(Utils.CHARSET)));
      liquibase.forceReleaseLocks();
      break;
    }
  }
}