Program: 36481
Project: 36481
Buggy source:
/** 
 * The main entry point for applications. The start method is called after the init method has returned, and after the system is ready for the application to begin running. <p> NOTE: This method is called on the JavaFX Application Thread.
 * @param primaryStage the primary stage for this application, onto whichthe application scene can be set. The primary stage will be embedded in the browser if the application was launched as an applet. Applications may create other stages, if needed, but they will not be primary stages and will not be embedded in the browser.
 */
@Override public void start(Stage primaryStage){
  if (close_prematurely) {
    LOGGER.info("String_Node_Str");
    close();
    return;
  }
  try {
    taskbarIcon.setTitle(name);
    taskbarIcon.setIcon(getIcon());
    taskbarIcon.setOnClose(this::close);
    taskbarIcon.setOnMinimize(v -> windowManager.windows.forEach(w -> w.setMinimized(v)));
    taskbarIcon.setOnAltTab(() -> {
      boolean apphasfocus=windowManager.getFocused() != null;
      if (!apphasfocus) {
        boolean allminimized=windowManager.windows.stream().allMatch(Window::isMinimized);
        if (allminimized)         windowManager.windows.stream().forEach(w -> w.setMinimized(false));
 else         windowManager.windows.stream().filter(w -> w.isShowing()).forEach(Window::focus);
      }
    }
);
    windowOwner=windowManager.createWindowOwner();
    windowOwner.show();
    ClassIndex.getAnnotated(IsPluginType.class).forEach(plugins::registerPluginType);
    ClassIndex.getAnnotated(IsPlugin.class).forEach(plugins::registerPlugin);
    widgetManager.initialize();
    services.addService(new TrayService());
    services.addService(new Notifier());
    services.addService(new PlaycountIncrementer());
    services.addService(new ClickEffect());
    configuration.collectStatic();
    services.forEach(configuration::collect);
    configuration.collect(this,windowManager,guide,actionPane);
    configuration.collectComplete();
    configuration.load(FILE_SETTINGS);
    Player.initialize();
    List<String> ps=fetchParameters();
    normalLoad=ps.stream().noneMatch(s -> s.endsWith("String_Node_Str") || widgetManager.factories.get(s) != null);
    configuration.getFields(f -> f.getGroup().equals("String_Node_Str") && f.getGuiName().equals("String_Node_Str")).get(0).applyValue();
    windowManager.deserialize(normalLoad);
    Db.start();
    initialized=true;
  }
 catch (  Exception e) {
    LOGGER.info("String_Node_Str",e);
    LOGGER.error("String_Node_Str",e);
  }
  configuration.getFields().forEach(Config::applyValue);
  if (normalLoad)   Player.loadLast();
  if (guide.first_time.get())   run(3000,guide::start);
  Image image=new Image(new File("String_Node_Str").getAbsoluteFile().toURI().toString());
  ImageCursor c=new ImageCursor(image,3,3);
  window.getStage().getScene().setCursor(c);
  parameterProcessor.process(fetchParameters());
}

Fixed version (ground truth):
/** 
 * The main entry point for applications. The start method is called after the init method has returned, and after the system is ready for the application to begin running. <p> NOTE: This method is called on the JavaFX Application Thread.
 * @param primaryStage the primary stage for this application, onto whichthe application scene can be set. The primary stage will be embedded in the browser if the application was launched as an applet. Applications may create other stages, if needed, but they will not be primary stages and will not be embedded in the browser.
 */
@Override public void start(Stage primaryStage){
  if (close_prematurely) {
    LOGGER.info("String_Node_Str");
    close();
    return;
  }
  try {
    taskbarIcon.setTitle(name);
    taskbarIcon.setIcon(getIcon());
    taskbarIcon.setOnClose(this::close);
    taskbarIcon.setOnMinimize(v -> windowManager.windows.forEach(w -> w.setMinimized(v)));
    taskbarIcon.setOnAltTab(() -> {
      boolean apphasfocus=windowManager.getFocused() != null;
      if (!apphasfocus) {
        boolean allminimized=windowManager.windows.stream().allMatch(Window::isMinimized);
        if (allminimized)         windowManager.windows.stream().forEach(w -> w.setMinimized(false));
 else         windowManager.windows.stream().filter(WindowBase::isShowing).forEach(Window::focus);
      }
    }
);
    windowOwner=windowManager.createWindowOwner();
    windowOwner.show();
    ClassIndex.getAnnotated(IsPluginType.class).forEach(plugins::registerPluginType);
    ClassIndex.getAnnotated(IsPlugin.class).forEach(plugins::registerPlugin);
    widgetManager.initialize();
    services.addService(new TrayService());
    services.addService(new Notifier());
    services.addService(new PlaycountIncrementer());
    services.addService(new ClickEffect());
    configuration.collectStatic();
    services.forEach(configuration::collect);
    configuration.collect(this,windowManager,guide,actionPane);
    configuration.collectComplete();
    configuration.load(FILE_SETTINGS);
    Player.initialize();
    List<String> ps=fetchParameters();
    normalLoad=ps.stream().noneMatch(s -> s.endsWith("String_Node_Str") || widgetManager.factories.get(s) != null);
    configuration.getFields(f -> f.getGroup().equals("String_Node_Str") && f.getGuiName().equals("String_Node_Str")).get(0).applyValue();
    windowManager.deserialize(normalLoad);
    Db.start();
    initialized=true;
  }
 catch (  Exception e) {
    LOGGER.info("String_Node_Str",e);
    LOGGER.error("String_Node_Str",e);
  }
  configuration.getFields().forEach(Config::applyValue);
  if (normalLoad)   Player.loadLast();
  if (guide.first_time.get())   run(3000,guide::start);
  Image image=new Image(new File("String_Node_Str").getAbsoluteFile().toURI().toString());
  ImageCursor c=new ImageCursor(image,3,3);
  window.getStage().getScene().setCursor(c);
  parameterProcessor.process(fetchParameters());
}