Program: 47397
Project: 47397
Buggy source:
public void doDelete(String filesList,final SolutionFileActionEvent event){
  String deleteFilesURL=contextURL + "String_Node_Str";
  RequestBuilder deleteFilesRequestBuilder=new RequestBuilder(RequestBuilder.PUT,deleteFilesURL);
  deleteFilesRequestBuilder.setHeader("String_Node_Str","String_Node_Str");
  deleteFilesRequestBuilder.setHeader("String_Node_Str","String_Node_Str");
  try {
    deleteFilesRequestBuilder.sendRequest(filesList,new RequestCallback(){
      @Override public void onError(      Request request,      Throwable exception){
        MessageDialogBox dialogBox=new MessageDialogBox(Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str"),false,false,true);
        dialogBox.center();
        event.setMessage(Messages.getString("String_Node_Str"));
        EventBusUtil.EVENT_BUS.fireEvent(event);
      }
      @Override public void onResponseReceived(      Request request,      Response response){
        if (response.getStatusCode() == 200) {
          event.setMessage("String_Node_Str");
          EventBusUtil.EVENT_BUS.fireEvent(event);
          new RefreshRepositoryCommand().execute(false);
          FileChooserDialog.setIsDirty(Boolean.TRUE);
          setBrowseRepoDirty(Boolean.TRUE);
          for (          FileItem recentItem : repositoryFiles) {
            if (recentItem != null) {
              SolutionBrowserPanel.getInstance().removeRecent(recentItem.getPath());
              SolutionBrowserPanel.getInstance().removeFavorite(recentItem.getPath());
            }
          }
        }
 else {
          MessageDialogBox dialogBox=new MessageDialogBox(Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str"),false,false,true);
          dialogBox.center();
          event.setMessage(Messages.getString("String_Node_Str"));
          EventBusUtil.EVENT_BUS.fireEvent(event);
        }
      }
    }
);
  }
 catch (  RequestException e) {
    MessageDialogBox dialogBox=new MessageDialogBox(Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str"),false,false,true);
    dialogBox.center();
    event.setMessage(Messages.getString("String_Node_Str"));
    EventBusUtil.EVENT_BUS.fireEvent(event);
  }
}

Fixed version (ground truth):
public void doDelete(String filesList,final SolutionFileActionEvent event){
  String deleteFilesURL=contextURL + "String_Node_Str";
  RequestBuilder deleteFilesRequestBuilder=new RequestBuilder(RequestBuilder.PUT,deleteFilesURL);
  deleteFilesRequestBuilder.setHeader("String_Node_Str","String_Node_Str");
  deleteFilesRequestBuilder.setHeader("String_Node_Str","String_Node_Str");
  try {
    deleteFilesRequestBuilder.sendRequest(filesList,new RequestCallback(){
      @Override public void onError(      Request request,      Throwable exception){
        MessageDialogBox dialogBox=new MessageDialogBox(Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str"),false,false,true);
        dialogBox.center();
        event.setMessage(Messages.getString("String_Node_Str"));
        EventBusUtil.EVENT_BUS.fireEvent(event);
      }
      @Override public void onResponseReceived(      Request request,      Response response){
        if (response.getStatusCode() == 200) {
          event.setMessage("String_Node_Str");
          EventBusUtil.EVENT_BUS.fireEvent(event);
          new RefreshRepositoryCommand().execute(false);
          FileChooserDialog.setIsDirty(Boolean.TRUE);
          setBrowseRepoDirty(Boolean.TRUE);
          for (          SolutionBrowserFile file : filesToDelete) {
            if (file.getPath() != null) {
              SolutionBrowserPanel.getInstance().removeRecent(file.getPath());
              SolutionBrowserPanel.getInstance().removeFavorite(file.getPath());
            }
          }
        }
 else {
          MessageDialogBox dialogBox=new MessageDialogBox(Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str"),false,false,true);
          dialogBox.center();
          event.setMessage(Messages.getString("String_Node_Str"));
          EventBusUtil.EVENT_BUS.fireEvent(event);
        }
      }
    }
);
  }
 catch (  RequestException e) {
    MessageDialogBox dialogBox=new MessageDialogBox(Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str"),false,false,true);
    dialogBox.center();
    event.setMessage(Messages.getString("String_Node_Str"));
    EventBusUtil.EVENT_BUS.fireEvent(event);
  }
}