Program: 116948
Project: 116948
Buggy source:
@SuppressWarnings("String_Node_Str") public void execute(Tuple tuple){
  LOG.trace("String_Node_Str");
  JSONObject original_message=null;
  String key=null;
  try {
    key=tuple.getStringByField("String_Node_Str");
    original_message=(JSONObject)tuple.getValueByField("String_Node_Str");
    if (original_message == null || original_message.isEmpty())     throw new Exception("String_Node_Str");
    LOG.trace("String_Node_Str" + original_message);
    JSONObject alerts_tag=new JSONObject();
    Map<String,JSONObject> alerts_list=_adapter.alert(original_message);
    JSONArray uuid_list=new JSONArray();
    if (alerts_list == null || alerts_list.isEmpty()) {
      LOG.trace("String_Node_Str" + original_message);
      _collector.ack(tuple);
      _collector.emit(new Values(original_message));
    }
 else {
      for (      String alert : alerts_list.keySet()) {
        uuid_list.add(alert);
        System.out.println("String_Node_Str" + alert);
        if (cache.getIfPresent(alert) == null) {
          System.out.println("String_Node_Str" + alert);
          JSONObject global_alert=new JSONObject();
          global_alert.putAll(_identifier);
          global_alert.put("String_Node_Str",alerts_list.get(alert));
          _collector.emit("String_Node_Str",new Values(global_alert));
          cache.put(alert,"String_Node_Str");
        }
 else         System.out.println("String_Node_Str" + alert);
        LOG.trace("String_Node_Str" + alerts_list);
        if (original_message.containsKey("String_Node_Str")) {
          JSONArray already_triggered=(JSONArray)original_message.get("String_Node_Str");
          uuid_list.addAll(already_triggered);
          LOG.trace("String_Node_Str");
        }
        original_message.put("String_Node_Str",uuid_list);
        LOG.debug("String_Node_Str" + alerts_tag);
        _collector.ack(tuple);
        _collector.emit("String_Node_Str",new Values(key,original_message));
      }
    }
  }
 catch (  Exception e) {
    e.printStackTrace();
    LOG.error("String_Node_Str" + original_message);
    e.printStackTrace();
    _collector.fail(tuple);
    String error_as_string=org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(e);
    JSONObject error=ErrorGenerator.generateErrorMessage("String_Node_Str" + original_message,error_as_string);
    _collector.emit("String_Node_Str",new Values(error));
  }
}

Fixed version (ground truth):
@SuppressWarnings("String_Node_Str") public void execute(Tuple tuple){
  LOG.trace("String_Node_Str");
  JSONObject original_message=null;
  String key=null;
  try {
    key=tuple.getStringByField("String_Node_Str");
    original_message=(JSONObject)tuple.getValueByField("String_Node_Str");
    if (original_message == null || original_message.isEmpty())     throw new Exception("String_Node_Str");
    if (key == null)     throw new Exception("String_Node_Str");
    LOG.trace("String_Node_Str" + original_message);
    JSONObject alerts_tag=new JSONObject();
    Map<String,JSONObject> alerts_list=_adapter.alert(original_message);
    JSONArray uuid_list=new JSONArray();
    if (alerts_list == null || alerts_list.isEmpty()) {
      LOG.trace("String_Node_Str" + original_message);
      _collector.ack(tuple);
      _collector.emit(new Values(original_message));
    }
 else {
      for (      String alert : alerts_list.keySet()) {
        uuid_list.add(alert);
        System.out.println("String_Node_Str" + alert);
        if (cache.getIfPresent(alert) == null) {
          System.out.println("String_Node_Str" + alert);
          JSONObject global_alert=new JSONObject();
          global_alert.putAll(_identifier);
          global_alert.put("String_Node_Str",alerts_list.get(alert));
          _collector.emit("String_Node_Str",new Values(global_alert));
          cache.put(alert,"String_Node_Str");
        }
 else         System.out.println("String_Node_Str" + alert);
        LOG.trace("String_Node_Str" + alerts_list);
        if (original_message.containsKey("String_Node_Str")) {
          JSONArray already_triggered=(JSONArray)original_message.get("String_Node_Str");
          uuid_list.addAll(already_triggered);
          LOG.trace("String_Node_Str");
        }
        original_message.put("String_Node_Str",uuid_list);
        LOG.debug("String_Node_Str" + alerts_tag);
        _collector.ack(tuple);
        _collector.emit("String_Node_Str",new Values(key,original_message));
      }
    }
  }
 catch (  Exception e) {
    e.printStackTrace();
    LOG.error("String_Node_Str" + original_message);
    e.printStackTrace();
    _collector.fail(tuple);
    String error_as_string=org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(e);
    JSONObject error=ErrorGenerator.generateErrorMessage("String_Node_Str" + original_message,error_as_string);
    _collector.emit("String_Node_Str",new Values(error));
  }
}