Adding attributes to sendMessage request raises an error

[hketepalli-resilient]

When I pass in attributes to the send message request, I get an "MD5 returned by SQS does not match the calculation on the original request" error but this error is gone once I remove the attributes from the request.

I am using SqsClient (software.amazon.awssdk.services.sqs.SqsClient) to send the mock server.

Example code:

final Map<String, MessageAttributeValue> messageAttributes = new HashMap<>();

messageAttributes.put("attribute1",
  MessageAttributeValue.builder().stringValue("foo").dataType("String").build());

messageAttributes.put("attribute2",
  MessageAttributeValue.builder().stringValue("bar").dataType("String").build());

final Builder messageRequestBuilder = SendMessageRequest.builder()
  .queueUrl(queueUrl)
  .messageBody("message")
  .messageGroupId("group id")
  .messageAttributes(messageAttributes);

Error message:

software.amazon.awssdk.core.exception.SdkClientException: MD5 returned by SQS does not match the calculation on the original request. (MD5 calculated by the message attributes: "f9b03cfbe7f627a0363df39cd0698e10", MD5 checksum returned: "ac7f06e26c93a9e466e01991887b356d")
! at software.amazon.awssdk.core.exception.SdkClientException$BuilderImpl.build(SdkClientException.java:102)
! at software.amazon.awssdk.services.sqs.internal.MessageMD5ChecksumInterceptor.sendMessageOperationMd5Check(MessageMD5ChecksumInterceptor.java:122)
! at software.amazon.awssdk.services.sqs.internal.MessageMD5ChecksumInterceptor.afterExecution(MessageMD5ChecksumInterceptor.java:84)
! at software.amazon.awssdk.core.interceptor.ExecutionInterceptorChain.lambda$afterExecution$10(ExecutionInterceptorChain.java:195)
! at software.amazon.awssdk.core.interceptor.ExecutionInterceptorChain.reverseFor
...