java.lang.VerifyError：由于方法错误，验证程序拒绝了类 StreamingRecognizeResponse

Question

嘿，我正在尝试在 Android 中使用 Google Cloud Speech API，但我收到此错误并且无法解决。

java.lang.VerifyError: Verifier rejected class com.google.cloud.speech.v1
  .StreamingRecognizeResponse due to bad method java.lang.Object com.google
  .cloud.speech.v1.StreamingRecognizeResponse.dynamicMethod(com.google.protobuf
  .GeneratedMessageLite$MethodToInvoke, java.lang.Object, java.lang.Object) 
  (declaration of 'com.google.cloud.speech.v1.StreamingRecognizeResponse' 
  appears in /data/app/com.curieo.podcast-1/base.apk:classes65.dex)

  at com.google.cloud.speech.v1.StreamingRecognizeResponse.getDefaultInstance(StreamingRecognizeResponse.java:1095)
  at com.google.cloud.speech.v1.SpeechGrpc.<clinit>(SpeechGrpc.java:67)
  at com.curieo.podcast.ui.fragment.dates.googlecloud.StreamingRecognizeClient.<init>(StreamingRecognizeClient.java:57)
  at com.curieo.podcast.ui.fragment.dates.googlecloud.MicrophoneStreamRecognizeClient.<init>(MicrophoneStreamRecognizeClient.java:54)
  at com.curieo.podcast.ui.fragment.dates.RecordFragment$1.run(RecordFragment.java:112)

我对此进行了搜索，但找不到解决方案。这是发生错误的代码

private Thread runner = new Thread() {

    public void run() {

        try {
            MicrophoneStreamRecognizeClient client;
            synchronized (this) {
                try {
                    client = new MicrophoneStreamRecognizeClient(getResources().openRawResource(R.raw.credential), Self); //crashes here 
                    client.start();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
};

这里是MicrophoneStreamRecognizeClient类的代码sn-p：

public class MicrophoneStreamRecognizeClient {

private String host = "speech.googleapis.com";
private Integer port = 443;
private ManagedChannel channel;
private StreamingRecognizeClient client;

private final List<String> OAUTH2_SCOPES = Arrays.asList("https://www.googleapis.com/auth/cloud-platform");

/**
 *
 * @param authorizationFile
 * @param host
 * @param port
 * @return
 * @throws IOException
 */
 private ManagedChannel createChannel(InputStream authorizationFile, String host, int port) throws IOException {

    GoogleCredentials creds = GoogleCredentials.fromStream(authorizationFile);
    creds = creds.createScoped(OAUTH2_SCOPES);
    return ManagedChannelBuilder.forAddress(host, port)
        .intercept(new ClientAuthInterceptor(creds, Executors.newSingleThreadExecutor()))
        .build();
}

/**
 *
 * @param autorizationFile
 * @throws IOException
 */
 public MicrophoneStreamRecognizeClient(InputStream autorizationFile, IResults screen) throws IOException {

    channel = createChannel(autorizationFile, host, port);
    client = new StreamingRecognizeClient(channel, screen);
}

/**
 *
 * @throws IOException
 * @throws InterruptedException
 */
 public void start() throws IOException, InterruptedException {

    client.recognize();
}

/**
 *
 * @throws InterruptedException
 */
 public void stop() throws InterruptedException {

    client.shutdown();
}

}

Answer 1

清理build 文件夹解决了这个问题。不知道为什么 ART 有问题，但 Dalvik 没有。

运行gradle clean 任务并没有一直清除我的构建文件夹。我必须手动完成，但 clean 可能对某些人有用。

Reference

java.lang.VerifyError 可能出于某种原因发生：

1. 一个类试图扩展一个声明为 final 的类

2. 方法试图覆盖声明为 final 的超级方法

3. 一个错误的参数被传递给一个方法

    clint = new MicrophoneStreamRecognizeClient(getResources()
            .openRawResource(R.raw.credential), Self); //crashes here 
   

我不知道Self 是什么。可以吗？

试试这个。

  synchronized (this) {
     MicrophoneStreamRecognizeClient client;
     try {
        client = new MicrophoneStreamRecognizeClient(getResources().openRawResource(R.raw.credential), Self); //crashes here 
         client.start();
     } catch (InterruptedException e) {
         e.printStackTrace();
     } catch (IOException e) {
         e.printStackTrace();
     }
 }

因为另一个问题可能是！ try / catch 块内的同步块！ java.lang.VerifyErrorreference的原因

Answer 2

如果java.lang.VerifyError 被触发是因为library differences between runtime and compiling，正如@Enamul 所建议的那样，那么您可能想检查com.google.cloud.speech.v1.StreamingRecognizeResponse 和com.google.cloud.speech.v1beta1.StreamingRecognizeResponse 之间的差异。

即便如此，请尝试使用该库的 beta 更新版本。启发您的示例使用的是测试版。