Program: 74136
Project: 74136
Buggy source:
public String _generateOutDriverCode() throws IllegalActionException {
  StringBuffer code=new StringBuffer();
  System.out.println("String_Node_Str");
  String sinkReference;
  String srcReference;
  String actorDriverCode="String_Node_Str";
  CodeGeneratorHelper myHelper;
  Director dir;
  for (  Actor actor : (List<Actor>)((TypedCompositeActor)_director.getContainer()).deepEntityList()) {
    List outputPortList=actor.outputPortList();
    Iterator outputPorts=outputPortList.iterator();
    sinkReference="String_Node_Str";
    srcReference="String_Node_Str";
    actorDriverCode="String_Node_Str";
    dir=actor.getDirector();
    if (actor instanceof CompositeActor && dir != null) {
      while (outputPorts.hasNext()) {
        TypedIOPort sourcePort=(TypedIOPort)outputPorts.next();
        TypedIOPort sp=sourcePort;
        List<TypedIOPort> ports=sourcePort.insidePortList();
        for (        TypedIOPort port : ports) {
          if (port.isOutput()) {
            sp=port;
          }
        }
        String channelOffset[]={"String_Node_Str","String_Node_Str"};
        int i=sourcePort.getWidth();
        myHelper=(CodeGeneratorHelper)this._getHelper(sourcePort.getContainer());
        if (i > 1) {
          for (int j=0; j < i; j++) {
            actorDriverCode+="String_Node_Str";
          }
        }
 else {
          channelOffset[0]="String_Node_Str";
          srcReference=this.driverGetReference((TypedIOPort)sp,channelOffset,true,true,myHelper);
          sinkReference=this.driverGetReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          String temp=_typeConversion(sp,sourcePort);
          String src;
          if (temp.length() == 0)           src=srcReference;
 else           src=temp + "String_Node_Str" + srcReference+ "String_Node_Str";
          actorDriverCode+=sinkReference + "String_Node_Str" + src+ "String_Node_Str"+ _eol;
        }
      }
    }
 else {
      while (outputPorts.hasNext()) {
        IOPort sourcePort=(IOPort)outputPorts.next();
        String channelOffset[]={"String_Node_Str","String_Node_Str"};
        int i=sourcePort.getWidth();
        myHelper=(CodeGeneratorHelper)this._getHelper(sourcePort.getContainer());
        if (i > 1) {
          for (int j=0; j < i; j++) {
            actorDriverCode+="String_Node_Str";
          }
        }
 else {
          channelOffset[0]="String_Node_Str";
          srcReference=this.getReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          sinkReference=this.driverGetReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          ArrayList args=new ArrayList();
          args.add(sinkReference);
          args.add(srcReference);
          actorDriverCode+=_generateBlockCode("String_Node_Str",args);
        }
      }
      System.out.println("String_Node_Str");
      System.out.println(actorDriverCode);
    }
    ArrayList args=new ArrayList();
    args.add(_generateDriverName((NamedObj)actor) + "String_Node_Str");
    args.add(actorDriverCode);
    code.append(_generateBlockCode("String_Node_Str",args));
  }
  return code.toString();
}

Fixed version (ground truth):
public String _generateOutDriverCode() throws IllegalActionException {
  StringBuffer code=new StringBuffer();
  System.out.println("String_Node_Str");
  String sinkReference;
  String srcReference;
  String actorDriverCode="String_Node_Str";
  CodeGeneratorHelper myHelper;
  Director dir;
  for (  Actor actor : (List<Actor>)((TypedCompositeActor)_director.getContainer()).deepEntityList()) {
    List outputPortList=actor.outputPortList();
    Iterator outputPorts=outputPortList.iterator();
    sinkReference="String_Node_Str";
    srcReference="String_Node_Str";
    actorDriverCode="String_Node_Str";
    dir=actor.getDirector();
    code.append(_eol + "String_Node_Str" + dir.getFullName()+ _eol);
    if (actor instanceof CompositeActor && (dir.getFullName().contains("String_Node_Str") || dir.getFullName().contains("String_Node_Str"))) {
      code.append(_eol + "String_Node_Str" + _eol);
      actorDriverCode+=_eol + "String_Node_Str" + _eol;
      while (outputPorts.hasNext()) {
        IOPort sourcePort=(IOPort)outputPorts.next();
        String channelOffset[]={"String_Node_Str","String_Node_Str"};
        int i=sourcePort.getWidth();
        myHelper=(CodeGeneratorHelper)this._getHelper(sourcePort.getContainer());
        if (i > 1) {
          for (int j=0; j < i; j++) {
            actorDriverCode+="String_Node_Str";
          }
        }
 else {
          channelOffset[0]="String_Node_Str";
          srcReference=this.getReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          sinkReference=this.driverGetReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          ArrayList args=new ArrayList();
          args.add(sinkReference);
          args.add(srcReference);
          actorDriverCode+=_generateBlockCode("String_Node_Str",args);
        }
      }
    }
 else     if (actor instanceof CompositeActor && dir != null) {
      code.append(_eol + "String_Node_Str" + dir.getFullName()+ _eol);
      while (outputPorts.hasNext()) {
        TypedIOPort sourcePort=(TypedIOPort)outputPorts.next();
        TypedIOPort sp=sourcePort;
        List<TypedIOPort> ports=sourcePort.insidePortList();
        for (        TypedIOPort port : ports) {
          if (port.isOutput()) {
            sp=port;
          }
        }
        String channelOffset[]={"String_Node_Str","String_Node_Str"};
        int i=sourcePort.getWidth();
        myHelper=(CodeGeneratorHelper)this._getHelper(sourcePort.getContainer());
        if (i > 1) {
          for (int j=0; j < i; j++) {
            actorDriverCode+="String_Node_Str";
          }
        }
 else {
          channelOffset[0]="String_Node_Str";
          srcReference=this.driverGetReference((TypedIOPort)sp,channelOffset,true,true,myHelper);
          sinkReference=this.driverGetReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          String temp=_typeConversion(sp,sourcePort);
          String src;
          if (temp.length() == 0)           src=srcReference;
 else           src=temp + "String_Node_Str" + srcReference+ "String_Node_Str";
          actorDriverCode+=sinkReference + "String_Node_Str" + src+ "String_Node_Str"+ _eol;
        }
      }
    }
 else {
      while (outputPorts.hasNext()) {
        IOPort sourcePort=(IOPort)outputPorts.next();
        String channelOffset[]={"String_Node_Str","String_Node_Str"};
        int i=sourcePort.getWidth();
        myHelper=(CodeGeneratorHelper)this._getHelper(sourcePort.getContainer());
        if (i > 1) {
          for (int j=0; j < i; j++) {
            actorDriverCode+="String_Node_Str";
          }
        }
 else {
          channelOffset[0]="String_Node_Str";
          srcReference=this.getReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          sinkReference=this.driverGetReference((TypedIOPort)sourcePort,channelOffset,false,true,myHelper);
          ArrayList args=new ArrayList();
          args.add(sinkReference);
          args.add(srcReference);
          code.append(_eol + "String_Node_Str" + _eol);
          actorDriverCode+=_generateBlockCode("String_Node_Str",args);
        }
      }
      System.out.println("String_Node_Str");
      System.out.println(actorDriverCode);
    }
    ArrayList args=new ArrayList();
    args.add(_generateDriverName((NamedObj)actor) + "String_Node_Str");
    args.add(actorDriverCode);
    code.append(_generateBlockCode("String_Node_Str",args));
  }
  return code.toString();
}