Program: 8895
Project: 8895
Buggy source:
@Override public void simpleInitApp(){
  getAssetManager().registerLocator(AssetsConverter.getAssetsFolder(),FileLocator.class);
  TitleScreenState gameLoader=new TitleScreenState(){
    @Override public Void onLoad(){
      try {
        long startTime=System.currentTimeMillis();
        getAssetManager().registerLoader(MP2Loader.class,"String_Node_Str");
        getAssetManager().registerLoader(CameraSweepDataLoader.class,CameraSweepDataLoader.CAMERA_SWEEP_DATA_FILE_EXTENSION);
        setAnisotropy();
        ScreenshotAppState screenShotState=new ScreenshotAppState(SCREENSHOTS_FOLDER);
        stateManager.attach(screenShotState);
        if (params.containsKey("String_Node_Str")) {
          float quality=(getUserSettings().getSettingFloat(Settings.Setting.RECORDER_QUALITY));
          int frameRate=(getUserSettings().getSettingInteger(Settings.Setting.RECORDER_FPS));
          getSettings().setFrameRate(frameRate);
          VideoRecorderAppState recorder=new VideoRecorderAppState(quality,frameRate);
          String folder=params.get("String_Node_Str");
          if (folder == null) {
            folder=SCREENSHOTS_FOLDER;
          }
          if (!folder.endsWith(File.separator)) {
            folder=folder.concat(File.separator);
          }
          folder=folder.concat(getSettings().getTitle()).concat("String_Node_Str").concat(String.valueOf(System.currentTimeMillis() / 1000)).concat("String_Node_Str");
          recorder.setFile(new File(folder));
          stateManager.attach(recorder);
        }
        NiftyJmeDisplay niftyDisplay=getNifty();
        List<String> guiXMLs=Arrays.asList("String_Node_Str","String_Node_Str");
        for (        String xml : guiXMLs) {
          try {
          }
 catch (          Exception e) {
            throw new RuntimeException("String_Node_Str" + xml + "String_Node_Str",e);
          }
        }
        MainMenuState mainMenuState=new MainMenuState(!params.containsKey("String_Node_Str"),assetManager);
        mainMenuState.setEnabled(false);
        PlayerState playerState=new PlayerState();
        playerState.setEnabled(false);
        stateManager.attach(mainMenuState);
        stateManager.attach(playerState);
        niftyDisplay.getNifty().registerScreenController(mainMenuState,playerState);
        for (        String xml : guiXMLs) {
          niftyDisplay.getNifty().addXml(xml);
        }
        if (!params.containsKey("String_Node_Str") && !params.containsKey("String_Node_Str")) {
          long waitTime=5000 - (System.currentTimeMillis() - startTime);
          if (waitTime > 0) {
            Thread.sleep(waitTime);
          }
        }
      }
 catch (      InterruptedException ex) {
      }
catch (      Exception e) {
        logger.log(Level.SEVERE,"String_Node_Str",e);
        app.stop();
      }
      return null;
    }
    @Override public void onLoadComplete(){
      AmbientLight al=new AmbientLight();
      al.setColor(ColorRGBA.White.multLocal(5f));
      rootNode.addLight(al);
      if (params.containsKey("String_Node_Str") || params.containsKey("String_Node_Str")) {
        startGame();
      }
 else {
        playIntro();
      }
    }
  }
;
  this.stateManager.attach(gameLoader);
}

Fixed version (ground truth):
@Override public void simpleInitApp(){
  getAssetManager().registerLocator(AssetsConverter.getAssetsFolder(),FileLocator.class);
  TitleScreenState gameLoader=new TitleScreenState(){
    @Override public Void onLoad(){
      try {
        long startTime=System.currentTimeMillis();
        getAssetManager().registerLoader(MP2Loader.class,"String_Node_Str");
        getAssetManager().registerLoader(CameraSweepDataLoader.class,CameraSweepDataLoader.CAMERA_SWEEP_DATA_FILE_EXTENSION);
        setAnisotropy();
        ScreenshotAppState screenShotState=new ScreenshotAppState(SCREENSHOTS_FOLDER);
        stateManager.attach(screenShotState);
        if (params.containsKey("String_Node_Str")) {
          float quality=(getUserSettings().getSettingFloat(Settings.Setting.RECORDER_QUALITY));
          int frameRate=(getUserSettings().getSettingInteger(Settings.Setting.RECORDER_FPS));
          getSettings().setFrameRate(frameRate);
          VideoRecorderAppState recorder=new VideoRecorderAppState(quality,frameRate);
          String folder=params.get("String_Node_Str");
          if (folder == null) {
            folder=SCREENSHOTS_FOLDER;
          }
          if (!folder.endsWith(File.separator)) {
            folder=folder.concat(File.separator);
          }
          folder=folder.concat(getSettings().getTitle()).concat("String_Node_Str").concat(String.valueOf(System.currentTimeMillis() / 1000)).concat("String_Node_Str");
          recorder.setFile(new File(folder));
          stateManager.attach(recorder);
        }
        NiftyJmeDisplay niftyDisplay=getNifty();
        List<String> guiXMLs=Arrays.asList("String_Node_Str","String_Node_Str");
        for (        String xml : guiXMLs) {
          try {
          }
 catch (          Exception e) {
            throw new RuntimeException("String_Node_Str" + xml + "String_Node_Str",e);
          }
        }
        MainMenuState mainMenuState=new MainMenuState(!params.containsKey("String_Node_Str"),assetManager);
        mainMenuState.setEnabled(false);
        PlayerState playerState=new PlayerState(3,false);
        stateManager.attach(mainMenuState);
        stateManager.attach(playerState);
        niftyDisplay.getNifty().registerScreenController(mainMenuState,playerState);
        for (        String xml : guiXMLs) {
          niftyDisplay.getNifty().addXml(xml);
        }
        if (!params.containsKey("String_Node_Str") && !params.containsKey("String_Node_Str")) {
          long waitTime=5000 - (System.currentTimeMillis() - startTime);
          if (waitTime > 0) {
            Thread.sleep(waitTime);
          }
        }
      }
 catch (      InterruptedException ex) {
      }
catch (      Exception e) {
        logger.log(Level.SEVERE,"String_Node_Str",e);
        app.stop();
      }
      return null;
    }
    @Override public void onLoadComplete(){
      AmbientLight al=new AmbientLight();
      al.setColor(ColorRGBA.White.multLocal(5f));
      rootNode.addLight(al);
      if (params.containsKey("String_Node_Str") || params.containsKey("String_Node_Str")) {
        startGame();
      }
 else {
        playIntro();
      }
    }
  }
;
  this.stateManager.attach(gameLoader);
}