SpringBoot org.springframework.web.reactive.function.UnsupportedMediaTypeException: Content type 'application/octet-stream' not supported

Hello , I try to call web service that return as content type application/octet-stream this is my code

return webClientBuilder.build()
 .post()
 .uri(acquireLockUri)
 .contentType(APPLICATION_JSON_UTF8)
 .accept(APPLICATION_OCTET_STREAM)
 .header("X-token", tuples.getT2())
 .body(just(tuples.getT3()), AcquireLockRequest.class)
 .exchange()
 .flatMap(clientResponse -> {
  return clientResponse.bodyToMono(ByteArrayResource.class).map(byteArrayResource -> {

   return Mono.just(new String(byteArrayResource.getByteArray()));
  });

 })
 .onErrorResume(Mono::error);

and i got org.springframework.web.reactive.function.UnsupportedMediaTypeException: Content type 'application/octet-stream' not supported

Comment From: priyankagoel02

What is the solution for this problem As I am also getting same erro

Comment From: ryanb93

Same issue here, happened after upgrading from 2.3 to 2.4