AWS Translate code is throwing an unable to unmarshall error

Question

I am trying to use AWS-translate to translate an mp3 file in an s3 bucket. Currently, I have the error below being thrown. My code is:

public class ProviderTranscribeController {

private static final Logger LOGGER = Logger.getLogger(ProviderTranscribeController.class);

private AmazonTranscribe client = AmazonTranscribeClient.builder().withRegion(Regions.EU_WEST_2).build();
final AmazonS3 s3 = AmazonS3ClientBuilder.standard().withRegion(Regions.EU_WEST_2).build();


public TranscriptionJob transcribeMp3(){
    StartTranscriptionJobRequest request = new StartTranscriptionJobRequest();
    request.withLanguageCode(LanguageCode.EsUS);
    Media media = new Media();

    media.setMediaFileUri(Uri);

    request.withMedia(media).withMediaSampleRateHertz(8000);
    String transcriptionJobName = "myJob";
    request.setTranscriptionJobName(transcriptionJobName);
    request.withMediaFormat("mp3");
    LOGGER.info(request.getLanguageCode());
    LOGGER.info(request.getMedia().getMediaFileUri());
    LOGGER.info(request.getMediaFormat());
    LOGGER.info(request.getMediaSampleRateHertz());
    LOGGER.info(request.getTranscriptionJobName());

    client.startTranscriptionJob(request);

    GetTranscriptionJobRequest jobRequest = new GetTranscriptionJobRequest();
    jobRequest.setTranscriptionJobName(transcriptionJobName);
    TranscriptionJob transcriptionJob;
    transcriptionJob = client.getTranscriptionJob(jobRequest).getTranscriptionJob();

    return transcriptionJob;
}
}

And the error I am getting is:

Unable to unmarshall error response (null). Response Code: 400, Response Text: Bad Request:   
com.amazonaws.SdkClientException
com.amazonaws.SdkClientException: Unable to unmarshall error response (null). Response Code:   
400, Response Text: Bad Request
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1708)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1367)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1113)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:770)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:744)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:726)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:686)
at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:668)
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:532)
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:512)
at com.amazonaws.services.transcribe.AmazonTranscribeClient.doInvoke(AmazonTranscribeClient.java:349)
at com.amazonaws.services.transcribe.AmazonTranscribeClient.invoke(AmazonTranscribeClient.java:325)
at com.amazonaws.services.transcribe.AmazonTranscribeClient.executeStartTranscriptionJob(AmazonTranscribeClient.java:289)
at com.amazonaws.services.transcribe.AmazonTranscribeClient.startTranscriptionJob(AmazonTranscribeClient.java:264)
at transcribe.back.providers.ProviderTranscribeController.transcribeMp3(ProviderTranscribeController.java:37)
at transcribe.back.services.ServiceCollectHttp.createTranscription(ServiceCollectHttp.java:27)
at transcribe.back.ApplicationHandler.handleRequest(ApplicationHandler.java:22)
at transcribe.back.ApplicationHandler.handleRequest(ApplicationHandler.java:13)
Caused by: java.lang.NullPointerException
at com.amazonaws.http.JsonErrorResponseHandler.unmarshallException(JsonErrorResponseHandler.java:134)
at com.amazonaws.http.JsonErrorResponseHandler.createException(JsonErrorResponseHandler.java:124)
at com.amazonaws.http.JsonErrorResponseHandler.handle(JsonErrorResponseHandler.java:91)
at com.amazonaws.http.JsonErrorResponseHandler.handle(JsonErrorResponseHandler.java:37)
at com.amazonaws.http.AwsErrorResponseHandler.handleAse(AwsErrorResponseHandler.java:53)
at com.amazonaws.http.AwsErrorResponseHandler.handle(AwsErrorResponseHandler.java:41)
at com.amazonaws.http.AwsErrorResponseHandler.handle(AwsErrorResponseHandler.java:26)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1694)
... 17 more

I am looking to find the cause of this error or at least understand how this particular error is thrown. Any help is appreciated. Thanks.

Its the uri for the file in the bucket with the format "https://s3.eu-west-2.amazonaws.com//.mp3" @Boris — Hywel Griffiths, Jan 08 '20 at 11:52
I've now changed the format of the Uri to "s3:///.mp3" but to no avail... — Hywel Griffiths, Jan 08 '20 at 12:41
What is the version of `aws-sdk-java` you are using? We could then look at the source of [JsonErrorResponseHandler.java](https://github.com/aws/aws-sdk-java/blob/master/aws-java-sdk-core/src/main/java/com/amazonaws/http/JsonErrorResponseHandler.java) to see which variable is null. — Boris, Jan 08 '20 at 14:51
Thanks Boris - my s3 and transcribe were different versions so I've made them the same and I seem to have progress! It just complaining over authorization now... @Boris — Hywel Griffiths, Jan 09 '20 at 06:57

score 1 · Accepted Answer · answered Jan 09 '20 at 08:24

1

With the help of Boris's thoughts I worked out I was using different versions for the s3 and transcribe.

answered Jan 09 '20 at 08:24

Hywel Griffiths

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AWS Translate code is throwing an unable to unmarshall error

1 Answers1