我在用java在本地用clarifai尝试一些概念，从我电脑上的一些图片中。我们的想法是为每个图像获得30个概念，然后在我正在开发的应用程序中保存为标记。最初代码正常工作，我打印了我正在读取的文件夹中每个图像的结果，但一个多小时前，我留下了以下错误：

下面是我用来获取图像概念的java代码：

protected static String getConcepts(String path, String API_KEY) {

    /*Vou obter 30 conceitos para uma determinada imagem*/

    String result = "";
    ClarifaiClient client = new ClarifaiBuilder(API_KEY).client(new OkHttpClient()).buildSync();

    final List<ClarifaiOutput<Concept>> predictionResults = client.getDefaultModels().generalModel().predict().
    withInputs(ClarifaiInput.forImage(new File(path))).withMaxConcepts(5).executeSync().get();

    Iterator<ClarifaiOutput<Concept>> resultTags = predictionResults.iterator();
    TreeMap<String, Float> tags = new TreeMap<>();
    int numberOfTags;

    if (resultTags.hasNext()) {
        ClarifaiOutput<Concept> next = resultTags.next();
        numberOfTags = next.data().size();

        for (int j = 0; j < numberOfTags; j++) {
            Concept concept = next.data().get(j);
            String name = concept.name();
            tags.put(concept.name(), concept.value());
        }
    }

    for (Map.Entry<String, Float> entry : tags.entrySet()) {
        result += entry.getKey() + "," + entry.getValue() + ",";
    }

    System.out.println( result);
    return result;

}

public static void main(String[] args) throws IOException {

     /*ClarifaiClient client = new ClarifaiBuilder("b5bc3cb6b7ba4a8cbd6d950c811c18b3").buildSync();

     final List<ClarifaiOutput<Concept>> response =
         // You can also do client.getModelByID("id") to get your custom model
         client.getDefaultModels().generalModel()
                 .predict()
                 .withInputs(ClarifaiInput.forImage("https://samples.clarifai.com/metro-north.jpg"))
                 .executeSync()
                 .get();

     System.out.println(response);*/
    //String src = "/home/claudia/Desktop/EmotionROI/images/anger/selected_images/";
    //String img = "12.jpg";
    //String dest = src+"teste"+img;

    //Lista de ficheiros do diretório - obtenção dos ficheiros
    String pathDir = "/home/claudia/Desktop/EmotionROI/images/anger/selected_images/";
    File imageFile = new File(pathDir);
    File[] listFiles = imageFile.listFiles();
    //System.out.println("Os meus ficheiros são: ");

    String resultF = "";
    List<String> listTagImg = new ArrayList<>();
    //ciclo que vai permitir aceder ao nome dos ficheiros
    for (int i = 0; i < listFiles.length; i++) {
        String nameFiles = listFiles[i].getName();
        //System.out.println(nameFiles);

        //criação de um pah novo com o nome de cada um dos ficheiros
        String pahtFiles = pathDir+nameFiles;
        listTagImg.add(pahtFiles);
    }
    List<String> listTags = new ArrayList<>();
    String line="";
    for (int j = 0; j < listFiles.length; j++) {
        //System.out.println("lista"+listTagImg.get(j));
        line += getConcepts(listTagImg.get(j), "b5bc3cb6b7ba4a8cbd6d950c811c18b3");

    }
    //getConcepts(listTagImg.get(), "241b3315671f4baeaec399186c435022");

    System.out.println(line);

我在做什么？