ClarifaiChannel.INSTANCE.getGrpcChannel() 抛出 IllegalStateException：找不到 TLS ALPN 提供商

Question

我正在尝试使用 Clarifai 来预测 Android 应用程序中的图像。我正在使用 Clarifai gRPC Java 客户端。但是，我收到 IllegalStateException 消息“找不到 TLS ALPN 提供程序；没有可用的 netty-tcnative、Conscrypt 或 Jetty NPN/ALPN'。我正在使用 Java 11，Clarifai gRPC 8.0.0.

下面是我的代码：

public class ClarifaiTask extends AsyncTask<File, Integer, Boolean> {

    protected Boolean doInBackground(File... images) {
        V2Grpc.V2BlockingStub stub = V2Grpc.newBlockingStub(ClarifaiChannel.INSTANCE.getGrpcChannel()).withCallCredentials(new ClarifaiCallCredentials(API_KEY));


        MultiOutputResponse response = stub.postModelOutputs(PostModelOutputsRequest.newBuilder().setModelId(MODEL_ID).addInputs(Input.newBuilder().setData(Data.newBuilder().setImage(Image.newBuilder().setUrl(IMG_URL)))).build());

        if (response.getStatus().getCode() != StatusCode.SUCCESS) {
            throw new RuntimeException("Request failed, status: " + response.getStatus());
        }

        for (Concept c : response.getOutputs(0).getData().getConceptsList()) {
            System.out.println(String.format("%12s: %,.2f", c.getName(), c.getValue()));
        }

        return true;
    }
    
    protected void onPostExecute(Boolean result) {

    }
}

错误：

E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
    Process: com.package.name, PID: 25874
    java.lang.RuntimeException: An error occurred while executing doInBackground()
        at android.os.AsyncTask$4.done(AsyncTask.java:415)
        at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:381)
        at java.util.concurrent.FutureTask.setException(FutureTask.java:250)
        at java.util.concurrent.FutureTask.run(FutureTask.java:269)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637)
        at java.lang.Thread.run(Thread.java:1012)
     Caused by: java.lang.IllegalStateException: Could not find TLS ALPN provider; no working netty-tcnative, Conscrypt, or Jetty NPN/ALPN available
        at io.grpc.netty.shaded.io.grpc.netty.GrpcSslContexts.defaultSslProvider(GrpcSslContexts.java:246)
        at io.grpc.netty.shaded.io.grpc.netty.GrpcSslContexts.configure(GrpcSslContexts.java:146)
        at io.grpc.netty.shaded.io.grpc.netty.GrpcSslContexts.forClient(GrpcSslContexts.java:95)
        at com.clarifai.channel.ClarifaiChannel.getGrpcChannel(ClarifaiChannel.java:37)
        at com.clarifai.channel.ClarifaiChannel.getGrpcChannel(ClarifaiChannel.java:28)
        at com.dinuxsoft.somethingg.ClarifaiTask.doInBackground(ClarifaiTask.java:41)
        at com.dinuxsoft.somethingg.ClarifaiTask.doInBackground(ClarifaiTask.java:34)
        at android.os.AsyncTask$3.call(AsyncTask.java:394)
        at java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637) 
        at java.lang.Thread.run(Thread.java:1012) 

任何帮助表示赞赏。

Answer 1

您可以尝试安装 conscrypt 以提供 TLS 支持。

然后，您可以尝试更新您的 ClarifaiTask：

static {
    Security.insertProviderAt(Conscrypt.newProvider(), 1);
}

在调用存根之前