Program: 144345
Project: 144345
Buggy source:
public String cancelOrder(){
  String column=getColumnFilter();
  List<Orders> orderEntityList=new ArrayList<Orders>();
  if (StringUtils.isNotBlank(column)) {
    orderEntityList=orderService.findOrdersByCriteria(column,order.getOrderKeyword(),getClientId());
  }
 else {
    orderEntityList=orderService.findAllOrders();
  }
  for (  Orders orderElem : orderEntityList) {
    orders.add(transformToOrderFormBean(orderElem));
  }
  List<OrderItems> orderItemListing=operationsService.findAllOrderItemsByOrderId(orderIdParam);
  Integer checkItems=0;
  for (  OrderItems orderItemElem : orderItemListing) {
    if (orderItemElem.getStatus().equals("String_Node_Str") || orderItemElem.getStatus().equals("String_Node_Str")) {
      checkItems=checkItems + 1;
    }
  }
  if (checkItems >= 1) {
    clearErrorsAndMessages();
    addActionError("String_Node_Str");
    return INPUT;
  }
 else {
    Orders orderEntity=orderService.findOrdersById(orderIdParam);
    orderEntity.setOrderStatus("String_Node_Str");
    orderService.updateOrder(orderEntity);
    for (int i=0; i < orderItemListing.size(); i++) {
      orderItemListing.get(i).setVendorSea(null);
      orderItemListing.get(i).setVendorOrigin(null);
      orderItemListing.get(i).setVendorDestination(null);
      orderItemListing.get(i).setVesselScheduleId(null);
      orderItemListing.get(i).setDriverOrigin(null);
      orderItemListing.get(i).setDriverDestination(null);
      orderItemListing.get(i).setTruckOrigin(null);
      orderItemListing.get(i).setTruckDestination(null);
      orderItemListing.get(i).setFinalPickupDate(null);
      orderItemListing.get(i).setFinalDeliveryDate(null);
      orderItemListing.get(i).setContainerId(null);
      orderItemListing.get(i).setServiceRequirement(null);
      orderItemListing.get(i).setStatus("String_Node_Str");
      orderService.updateItemListing(orderItemListing.get(i));
    }
    List<Documents> documentEntityListing=documentsService.findDocumentsByOrderId(orderIdParam);
    for (int j=0; j < documentEntityListing.size(); j++) {
      documentsService.deleteDocument(documentEntityListing.get(j));
    }
    clearErrorsAndMessages();
    addActionMessage("String_Node_Str");
    return SUCCESS;
  }
}

Fixed version (ground truth):
public String cancelOrder(){
  String column=getColumnFilter();
  List<Orders> orderEntityList=new ArrayList<Orders>();
  if (StringUtils.isNotBlank(column)) {
    orderEntityList=orderService.findOrdersByCriteria(column,order.getOrderKeyword(),getClientId());
  }
 else {
    orderEntityList=orderService.findAllOrders();
  }
  for (  Orders orderElem : orderEntityList) {
    orders.add(transformToOrderFormBean(orderElem));
  }
  List<OrderItems> orderItemListing=operationsService.findAllOrderItemsByOrderId(orderIdParam);
  Integer checkItems=0;
  for (  OrderItems orderItemsElem : orderItemListing) {
    List<OrderStatusLogs> statusLogsEntity=orderStatusLogsService.findAllShipmentLogs(orderItemsElem.getOrderItemId());
    for (    OrderStatusLogs statusLogsElem : statusLogsEntity) {
      if (statusLogsElem.getStatus().equals("String_Node_Str") || statusLogsElem.getStatus().equals("String_Node_Str")) {
        checkItems=checkItems + 1;
      }
    }
  }
  if (checkItems >= 1) {
    clearErrorsAndMessages();
    addActionError("String_Node_Str");
    return INPUT;
  }
 else {
    Orders orderEntity=orderService.findOrdersById(orderIdParam);
    orderEntity.setOrderStatus("String_Node_Str");
    orderService.updateOrder(orderEntity);
    for (int i=0; i < orderItemListing.size(); i++) {
      orderItemListing.get(i).setVendorSea(null);
      orderItemListing.get(i).setVendorOrigin(null);
      orderItemListing.get(i).setVendorDestination(null);
      orderItemListing.get(i).setVesselScheduleId(null);
      orderItemListing.get(i).setDriverOrigin(null);
      orderItemListing.get(i).setDriverDestination(null);
      orderItemListing.get(i).setTruckOrigin(null);
      orderItemListing.get(i).setTruckDestination(null);
      orderItemListing.get(i).setFinalPickupDate(null);
      orderItemListing.get(i).setFinalDeliveryDate(null);
      orderItemListing.get(i).setContainerId(null);
      orderItemListing.get(i).setServiceRequirement(null);
      orderItemListing.get(i).setStatus("String_Node_Str");
      orderService.updateItemListing(orderItemListing.get(i));
    }
    List<Documents> documentEntityListing=documentsService.findDocumentsByOrderId(orderIdParam);
    for (int j=0; j < documentEntityListing.size(); j++) {
      documentsService.deleteDocument(documentEntityListing.get(j));
    }
    clearErrorsAndMessages();
    addActionMessage("String_Node_Str");
    return SUCCESS;
  }
}