Program: 132000
Project: 132000
Buggy source:
@Override public FlowDetails createClassifierOutFlow(String nodeId,String flowKey,Match match,SfcRspInfo sfcRspInfo){
  if (Strings.isNullOrEmpty(flowKey) || sfcRspInfo == null || Strings.isNullOrEmpty(nodeId)) {
    LOG.error("String_Node_Str");
    return null;
  }
  LOG.info("String_Node_Str");
  List<Action> theActions=SfcScfOfUtils.buildNshActions(sfcRspInfo);
  InstructionsBuilder isb;
  DpnIdType classifierNodeDpnId=LogicalClassifierDataGetter.getDpnIdFromNodeName(nodeId);
  DpnIdType firstHopDataplaneId=logicalSffDataGetter.getFirstHopDataplaneId(sfcRspInfo.getRsp()).orElseThrow(IllegalArgumentException::new);
  if (classifierNodeDpnId.equals(firstHopDataplaneId)) {
    LOG.info("String_Node_Str",this.getTransportIngressTable());
    isb=SfcOpenflowUtils.wrapActionsIntoApplyActionsInstruction(theActions);
    SfcOpenflowUtils.appendGotoTableInstruction(isb,this.getTransportIngressTable());
  }
 else {
    String theTunnelIf=logicalSffDataGetter.getInterfaceBetweenDpnIds(classifierNodeDpnId,firstHopDataplaneId).orElseThrow(RuntimeException::new);
    LOG.info("String_Node_Str",theTunnelIf,classifierNodeDpnId.getValue(),firstHopDataplaneId.getValue());
    List<Action> actionList=logicalSffDataGetter.getEgressActionsForTunnelInterface(theTunnelIf,theActions.size());
    if (!actionList.isEmpty()) {
      theActions.addAll(actionList);
    }
    isb=SfcOpenflowUtils.wrapActionsIntoApplyActionsInstruction(theActions);
  }
  FlowBuilder flowb=new FlowBuilder();
  flowb.setId(new FlowId(flowKey)).setTableId(this.getClassifierTable()).setKey(new FlowKey(new FlowId(flowKey))).setPriority(SfcScfOfUtils.FLOW_PRIORITY_CLASSIFIER).setMatch(match).setInstructions(isb.build());
  return classifierHandler.addRspRelatedFlowIntoNode(nodeId,flowb,sfcRspInfo.getNshNsp());
}

Fixed version (ground truth):
@Override public FlowDetails createClassifierOutFlow(String nodeId,String flowKey,Match match,SfcRspInfo sfcRspInfo){
  Preconditions.checkNotNull(flowKey,"String_Node_Str");
  Preconditions.checkNotNull(sfcRspInfo,"String_Node_Str");
  Preconditions.checkNotNull(nodeId,"String_Node_Str");
  List<Action> theActions=SfcScfOfUtils.buildNshActions(sfcRspInfo);
  InstructionsBuilder isb;
  DpnIdType classifierNodeDpnId=LogicalClassifierDataGetter.getDpnIdFromNodeName(nodeId);
  DpnIdType firstHopDataplaneId=logicalSffDataGetter.getFirstHopDataplaneId(sfcRspInfo.getRsp()).orElseThrow(IllegalArgumentException::new);
  if (classifierNodeDpnId.equals(firstHopDataplaneId)) {
    LOG.info("String_Node_Str",this.getTransportIngressTable());
    isb=SfcOpenflowUtils.wrapActionsIntoApplyActionsInstruction(theActions);
    SfcOpenflowUtils.appendGotoTableInstruction(isb,this.getTransportIngressTable());
  }
 else {
    String theTunnelIf=logicalSffDataGetter.getInterfaceBetweenDpnIds(classifierNodeDpnId,firstHopDataplaneId).orElseThrow(RuntimeException::new);
    LOG.info("String_Node_Str",theTunnelIf,classifierNodeDpnId.getValue(),firstHopDataplaneId.getValue());
    List<Action> actionList=logicalSffDataGetter.getEgressActionsForTunnelInterface(theTunnelIf,theActions.size());
    if (!actionList.isEmpty()) {
      theActions.addAll(actionList);
    }
    isb=SfcOpenflowUtils.wrapActionsIntoApplyActionsInstruction(theActions);
  }
  FlowBuilder flowb=new FlowBuilder();
  flowb.setId(new FlowId(flowKey)).setTableId(this.getClassifierTable()).setKey(new FlowKey(new FlowId(flowKey))).setPriority(SfcScfOfUtils.FLOW_PRIORITY_CLASSIFIER).setMatch(match).setInstructions(isb.build());
  return classifierHandler.addRspRelatedFlowIntoNode(nodeId,flowb,sfcRspInfo.getNshNsp());
}