Program: 62418
Project: 62418
Buggy source:
public WebView createWebView(){
  WebView webView=new WebView();
  webView.setContextMenuEnabled(false);
  ContextMenu menu=new ContextMenu();
  webView.setOnMouseClicked(event -> {
    if (menu.getItems().size() == 0) {
      MenuItem copy=new MenuItem("String_Node_Str");
      copy.setOnAction(event1 -> {
        controller.cutCopy(current.currentEditorSelection());
      }
);
      MenuItem paste=new MenuItem("String_Node_Str");
      paste.setOnAction(event1 -> {
        current.insertEditorValue(controller.paste());
      }
);
      menu.getItems().addAll(copy,paste);
    }
    if (menu.isShowing()) {
      menu.hide();
    }
    if (event.getButton() == MouseButton.SECONDARY) {
      menu.show(webView,event.getScreenX(),event.getScreenY());
    }
  }
);
  WebEngine webEngine=webView.getEngine();
  webView.setOnDragDropped(event -> {
    Dragboard dragboard=event.getDragboard();
    boolean success=false;
    if (dragboard.hasFiles()) {
      List<File> dragboardFiles=dragboard.getFiles();
      if (dragboardFiles.size() == 1) {
        Path path=dragboardFiles.get(0).toPath();
        if (Files.isDirectory(path)) {
          Iterator<File> files=FileUtils.iterateFilesAndDirs(path.toFile(),TrueFileFilter.INSTANCE,TrueFileFilter.INSTANCE);
          StringBuffer buffer=new StringBuffer();
          buffer.append("String_Node_Str");
          buffer.append("String_Node_Str");
          buffer.append("String_Node_Str" + path.getFileName().toString());
          while (files.hasNext()) {
            File next=files.next();
            Path relativize=path.relativize(next.toPath());
            Path path1=relativize.getName(0);
            if ("String_Node_Str".equals(path1.toString()) || pathResolver.isHidden(path1))             continue;
            String hash=String.join("String_Node_Str",Collections.nCopies(relativize.getNameCount() + 1,"String_Node_Str"));
            buffer.append("String_Node_Str");
            buffer.append(hash);
            buffer.append(relativize.getFileName().toString());
          }
          buffer.append("String_Node_Str");
          current.insertEditorValue(buffer.toString());
          success=true;
        }
      }
      Optional<String> block=parserService.toImageBlock(dragboardFiles);
      if (block.isPresent()) {
        current.insertEditorValue(block.get());
        success=true;
      }
 else {
        block=parserService.toIncludeBlock(dragboardFiles);
        if (block.isPresent()) {
          current.insertEditorValue(block.get());
          success=true;
        }
      }
    }
    if (dragboard.hasHtml() && !success) {
      Optional<String> block=parserService.toWebImageBlock(dragboard.getHtml());
      if (block.isPresent()) {
        current.insertEditorValue(block.get());
        success=true;
      }
    }
    if (dragboard.hasString() && !success) {
      current.insertEditorValue(dragboard.getString());
      success=true;
    }
    event.setDropCompleted(success);
    event.consume();
  }
);
  webEngine.getLoadWorker().stateProperty().addListener((observable,oldValue,newValue) -> {
    if (newValue == Worker.State.SUCCEEDED) {
      JSObject window=(JSObject)webEngine.executeScript("String_Node_Str");
      if (window.getMember("String_Node_Str").equals("String_Node_Str")) {
        window.setMember("String_Node_Str",controller);
        current.currentEngine().executeScript("String_Node_Str");
        controller.applySohrtCuts();
      }
    }
  }
);
  webEngine.load(String.format("String_Node_Str",controller.getPort()));
  return webView;
}

Fixed version (ground truth):
public WebView createWebView(){
  WebView webView=new WebView();
  webView.setContextMenuEnabled(false);
  ContextMenu menu=new ContextMenu();
  webView.setOnMouseClicked(event -> {
    if (menu.getItems().size() == 0) {
      MenuItem copy=new MenuItem("String_Node_Str");
      copy.setOnAction(event1 -> {
        controller.cutCopy(current.currentEditorSelection());
      }
);
      MenuItem paste=new MenuItem("String_Node_Str");
      paste.setOnAction(event1 -> {
        current.insertEditorValue(controller.paste());
      }
);
      menu.getItems().addAll(copy,paste);
    }
    if (menu.isShowing()) {
      menu.hide();
    }
    if (event.getButton() == MouseButton.SECONDARY) {
      menu.show(webView,event.getScreenX(),event.getScreenY());
    }
  }
);
  WebEngine webEngine=webView.getEngine();
  webView.setOnDragDropped(event -> {
    Dragboard dragboard=event.getDragboard();
    boolean success=false;
    if (dragboard.hasFiles()) {
      List<File> dragboardFiles=dragboard.getFiles();
      if (dragboardFiles.size() == 1) {
        Path path=dragboardFiles.get(0).toPath();
        if (Files.isDirectory(path)) {
          Iterator<File> files=FileUtils.iterateFilesAndDirs(path.toFile(),TrueFileFilter.INSTANCE,TrueFileFilter.INSTANCE);
          StringBuffer buffer=new StringBuffer();
          buffer.append("String_Node_Str");
          buffer.append("String_Node_Str");
          buffer.append("String_Node_Str" + path.getFileName().toString());
          while (files.hasNext()) {
            File next=files.next();
            Path relativize=path.relativize(next.toPath());
            Path path1=relativize.getName(0);
            if ("String_Node_Str".equals(path1.toString()) || pathResolver.isHidden(path1))             continue;
            String hash=String.join("String_Node_Str",Collections.nCopies(relativize.getNameCount() + 1,"String_Node_Str"));
            buffer.append("String_Node_Str");
            buffer.append(hash);
            buffer.append(relativize.getFileName().toString());
          }
          buffer.append("String_Node_Str");
          current.insertEditorValue(buffer.toString());
          success=true;
        }
      }
      Optional<String> block=parserService.toImageBlock(dragboardFiles);
      if (block.isPresent()) {
        current.insertEditorValue(block.get());
        success=true;
      }
 else {
        block=parserService.toIncludeBlock(dragboardFiles);
        if (block.isPresent()) {
          current.insertEditorValue(block.get());
          success=true;
        }
      }
    }
    if (dragboard.hasHtml() && !success) {
      Optional<String> block=parserService.toWebImageBlock(dragboard.getHtml());
      if (block.isPresent()) {
        current.insertEditorValue(block.get());
        success=true;
      }
    }
    if (dragboard.hasString() && !success) {
      current.insertEditorValue(dragboard.getString());
      success=true;
    }
    event.setDropCompleted(success);
    event.consume();
  }
);
  webEngine.getLoadWorker().stateProperty().addListener((observable,oldValue,newValue) -> {
    if (newValue == Worker.State.SUCCEEDED) {
      JSObject window=(JSObject)webEngine.executeScript("String_Node_Str");
      if (window.getMember("String_Node_Str").equals("String_Node_Str")) {
        threadService.runActionLater(new Runnable(){
          @Override public void run(){
            window.setMember("String_Node_Str",controller);
            try {
              current.currentEngine().executeScript("String_Node_Str");
              controller.applySohrtCuts();
            }
 catch (            Exception e) {
              threadService.runActionLater(this);
            }
          }
        }
);
      }
    }
  }
);
  webEngine.load(String.format("String_Node_Str",controller.getPort()));
  return webView;
}