Program: 89888
Project: 89888
Buggy source:
@DB protected void scheduleSnapshots(){
  String displayTime=DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE,_currentTimestamp);
  s_logger.debug("String_Node_Str" + displayTime);
  List<SnapshotScheduleVO> snapshotsToBeExecuted=_snapshotScheduleDao.getSchedulesToExecute(_currentTimestamp);
  s_logger.debug("String_Node_Str" + snapshotsToBeExecuted.size() + "String_Node_Str"+ displayTime);
  long userId=1;
  for (  SnapshotScheduleVO snapshotToBeExecuted : snapshotsToBeExecuted) {
    long policyId=snapshotToBeExecuted.getPolicyId();
    long volumeId=snapshotToBeExecuted.getVolumeId();
    if (s_logger.isDebugEnabled()) {
      Date scheduledTimestamp=snapshotToBeExecuted.getScheduledTimestamp();
      displayTime=DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE,scheduledTimestamp);
      s_logger.debug("String_Node_Str" + volumeId + "String_Node_Str"+ snapshotToBeExecuted.getId()+ "String_Node_Str"+ displayTime);
    }
    long snapshotScheId=snapshotToBeExecuted.getId();
    SnapshotScheduleVO tmpSnapshotScheduleVO=null;
    try {
      tmpSnapshotScheduleVO=_snapshotScheduleDao.acquireInLockTable(snapshotScheId);
      Map<String,String> params=new HashMap<String,String>();
      params.put("String_Node_Str","String_Node_Str" + volumeId);
      params.put("String_Node_Str","String_Node_Str" + policyId);
      AsyncJobVO job=new AsyncJobVO();
      job.setUserId(userId);
      job.setAccountId(1L);
      job.setCmd(CreateSnapshotCmd.class.getName());
      job.setCmdInfo(GsonHelper.getBuilder().create().toJson(params));
      long jobId=_asyncMgr.submitAsyncJob(job);
      tmpSnapshotScheduleVO.setAsyncJobId(jobId);
      _snapshotScheduleDao.update(snapshotScheId,tmpSnapshotScheduleVO);
    }
  finally {
      if (tmpSnapshotScheduleVO != null) {
        _snapshotScheduleDao.releaseFromLockTable(snapshotScheId);
      }
    }
  }
}

Fixed version (ground truth):
@DB protected void scheduleSnapshots(){
  String displayTime=DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE,_currentTimestamp);
  s_logger.debug("String_Node_Str" + displayTime);
  List<SnapshotScheduleVO> snapshotsToBeExecuted=_snapshotScheduleDao.getSchedulesToExecute(_currentTimestamp);
  s_logger.debug("String_Node_Str" + snapshotsToBeExecuted.size() + "String_Node_Str"+ displayTime);
  long userId=1;
  for (  SnapshotScheduleVO snapshotToBeExecuted : snapshotsToBeExecuted) {
    long policyId=snapshotToBeExecuted.getPolicyId();
    long volumeId=snapshotToBeExecuted.getVolumeId();
    if (s_logger.isDebugEnabled()) {
      Date scheduledTimestamp=snapshotToBeExecuted.getScheduledTimestamp();
      displayTime=DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE,scheduledTimestamp);
      s_logger.debug("String_Node_Str" + volumeId + "String_Node_Str"+ snapshotToBeExecuted.getId()+ "String_Node_Str"+ displayTime);
    }
    long snapshotScheId=snapshotToBeExecuted.getId();
    SnapshotScheduleVO tmpSnapshotScheduleVO=null;
    try {
      tmpSnapshotScheduleVO=_snapshotScheduleDao.acquireInLockTable(snapshotScheId);
      Map<String,String> params=new HashMap<String,String>();
      params.put("String_Node_Str","String_Node_Str" + volumeId);
      params.put("String_Node_Str","String_Node_Str" + policyId);
      params.put("String_Node_Str","String_Node_Str");
      params.put("String_Node_Str","String_Node_Str");
      AsyncJobVO job=new AsyncJobVO();
      job.setUserId(userId);
      job.setAccountId(1L);
      job.setCmd(CreateSnapshotCmd.class.getName());
      job.setCmdInfo(GsonHelper.getBuilder().create().toJson(params));
      long jobId=_asyncMgr.submitAsyncJob(job);
      tmpSnapshotScheduleVO.setAsyncJobId(jobId);
      _snapshotScheduleDao.update(snapshotScheId,tmpSnapshotScheduleVO);
    }
  finally {
      if (tmpSnapshotScheduleVO != null) {
        _snapshotScheduleDao.releaseFromLockTable(snapshotScheId);
      }
    }
  }
}