Program: 48594
Project: 48594
Buggy source:
@Override public void run(){
  Set<String> clusterList=new HashSet<String>();
  requestQueue.drainTo(clusterList);
  if (clusterList.isEmpty()) {
    logger.debug("String_Node_Str");
    return;
  }
  Iterator<String> ite=clusterList.iterator();
  for (String clusterName=ite.next(); ite.hasNext(); clusterName=ite.next()) {
    try {
      ClusterEntity cluster=lockedEntityManager.getClusterEntityMgr().findByName(clusterName);
      if (cluster == null) {
        logger.info("String_Node_Str" + clusterName + "String_Node_Str");
        ite.remove();
        continue;
      }
      if (!cluster.inStableStatus()) {
        logger.debug("String_Node_Str" + clusterName + "String_Node_Str"+ cluster.inStableStatus());
        logger.debug("String_Node_Str");
        continue;
      }
      ClusterBlueprint blueprint=lockedEntityManager.getClusterEntityMgr().toClusterBluePrint(clusterName);
      SoftwareManager softMgr=softwareManagerCollector.getSoftwareManagerByClusterName(clusterName);
      if (softMgr == null) {
        logger.error("String_Node_Str" + clusterName + "String_Node_Str");
        continue;
      }
      ClusterReport report=softMgr.queryClusterStatus(blueprint);
      if (report == null) {
        logger.debug("String_Node_Str");
        continue;
      }
      lockedEntityManager.getClusterEntityMgr().setClusterStatus(clusterName,report);
    }
 catch (    Exception e) {
      logger.error("String_Node_Str" + clusterName + "String_Node_Str"+ e.getMessage(),e);
    }
  }
  requestQueue.addAll(clusterList);
}

Fixed version (ground truth):
@Override public void run(){
  Set<String> clusterList=new HashSet<String>();
  requestQueue.drainTo(clusterList);
  if (clusterList.isEmpty()) {
    logger.debug("String_Node_Str");
    return;
  }
  Iterator<String> ite=clusterList.iterator();
  for (String clusterName=ite.next(); ite.hasNext(); clusterName=ite.next()) {
    try {
      ClusterEntity cluster=lockedEntityManager.getClusterEntityMgr().findByName(clusterName);
      if (cluster == null) {
        logger.info("String_Node_Str" + clusterName + "String_Node_Str");
        ite.remove();
        continue;
      }
      if (!cluster.inStableStatus()) {
        logger.debug("String_Node_Str" + clusterName + "String_Node_Str"+ cluster.inStableStatus());
        logger.debug("String_Node_Str");
        continue;
      }
      ClusterBlueprint blueprint=lockedEntityManager.getClusterEntityMgr().toClusterBluePrint(clusterName);
      SoftwareManager softMgr=softwareManagerCollector.getSoftwareManagerByClusterName(clusterName);
      if (softMgr == null) {
        logger.error("String_Node_Str" + clusterName + "String_Node_Str");
        continue;
      }
      ClusterReport report=softMgr.queryClusterStatus(blueprint);
      if (report == null) {
        logger.debug("String_Node_Str");
        continue;
      }
      logger.debug("String_Node_Str" + report.getStatus());
      lockedEntityManager.getClusterEntityMgr().setClusterStatus(clusterName,report);
    }
 catch (    Throwable e) {
      logger.error("String_Node_Str" + clusterName + "String_Node_Str"+ e.getMessage(),e);
    }
  }
  requestQueue.addAll(clusterList);
  logger.debug("String_Node_Str" + requestQueue);
}