Program: 174234
Project: 174234
Buggy source:
private void uploadFile(String filePath){
  File file=new File(filePath);
  RequestBody requestBody=new ProgressRequestBody(MediaType.parse("String_Node_Str"),file,this);
  Call<ResponseBody> call=AppController.longTimeoutService.uploadFile(AppController.getStoredString(Constants.Authorization),"String_Node_Str",requestBody);
  mUploadImgCircularProgress.setVisibility(View.VISIBLE);
  mChooseImageTxt.setVisibility(View.INVISIBLE);
  call.enqueue(new Callback<ResponseBody>(){
    @Override public void onResponse(    Call<ResponseBody> call,    Response<ResponseBody> response){
      mUploadImgCircularProgress.setVisibility(View.INVISIBLE);
      mChooseImageTxt.setVisibility(View.VISIBLE);
      if (!response.isSuccessful()) {
        Toasti.showS("String_Node_Str" + response.code());
        mUploadImgCircularProgress.setVisibility(View.INVISIBLE);
        mChooseImageTxt.setVisibility(View.VISIBLE);
        return;
      }
      Log.v("String_Node_Str","String_Node_Str");
      UploadFileOutput uploadFileOutput=new UploadFileOutput();
      try {
        uploadFileOutput=new Gson().fromJson(response.body().string(),UploadFileOutput.class);
      }
 catch (      IOException e) {
        e.printStackTrace();
      }
      if (uploadFileOutput.imageSrc != null) {
        Log.d("String_Node_Str","String_Node_Str" + uploadFileOutput.imageSrc);
        myGift.giftImages.add(uploadFileOutput.imageSrc);
        giftGalleryAdapter.notifyDataSetChanged();
        onUpdateGallery();
      }
    }
    @Override public void onFailure(    Call<ResponseBody> call,    Throwable t){
      Log.e("String_Node_Str",t.getMessage());
      Toasti.showL("String_Node_Str" + t.getMessage() + "String_Node_Str"+ t.getCause());
      mUploadImgCircularProgress.setVisibility(View.INVISIBLE);
      mChooseImageTxt.setVisibility(View.VISIBLE);
    }
  }
);
}

Fixed version (ground truth):
private void uploadFile(String filePath){
  File file=new File(filePath);
  RequestBody requestBody=new ProgressRequestBody(MediaType.parse("String_Node_Str"),file,this);
  Call<ResponseBody> call=AppController.longTimeoutService.uploadFile(AppController.getStoredString(Constants.Authorization),"String_Node_Str",requestBody);
  mUploadImgCircularProgress.setVisibility(View.VISIBLE);
  mChooseImageTxt.setVisibility(View.INVISIBLE);
  call.enqueue(new Callback<ResponseBody>(){
    @Override public void onResponse(    Call<ResponseBody> call,    Response<ResponseBody> response){
      mUploadImgCircularProgress.setVisibility(View.INVISIBLE);
      mChooseImageTxt.setVisibility(View.VISIBLE);
      if (!response.isSuccessful()) {
        if (response.code() == 401) {
          AppController.clearInfo();
          startActivity(LoginActivity.createIntent());
        }
        mUploadImgCircularProgress.setVisibility(View.INVISIBLE);
        mChooseImageTxt.setVisibility(View.VISIBLE);
        return;
      }
      Log.v("String_Node_Str","String_Node_Str");
      UploadFileOutput uploadFileOutput=new UploadFileOutput();
      try {
        uploadFileOutput=new Gson().fromJson(response.body().string(),UploadFileOutput.class);
      }
 catch (      IOException e) {
        e.printStackTrace();
      }
      if (uploadFileOutput.imageSrc != null) {
        Log.d("String_Node_Str","String_Node_Str" + uploadFileOutput.imageSrc);
        myGift.giftImages.add(uploadFileOutput.imageSrc);
        giftGalleryAdapter.notifyDataSetChanged();
        onUpdateGallery();
      }
    }
    @Override public void onFailure(    Call<ResponseBody> call,    Throwable t){
      Log.e("String_Node_Str",t.getMessage());
      Toasti.showL("String_Node_Str" + t.getMessage() + "String_Node_Str"+ t.getCause());
      mUploadImgCircularProgress.setVisibility(View.INVISIBLE);
      mChooseImageTxt.setVisibility(View.VISIBLE);
    }
  }
);
}