当Restlet返回400 Bad Request时,它是否返回415不支持的媒体类型？

public class CustomStatusService extends StatusService {
    @Override
    public Representation getRepresentation(Status status, Request request, Response response) {
        if (status.getCode() == 400) {
            // 检查是否是Content-Type导致的问题
            if (!isMediaTypeSupported(request)) {
                status = new Status(415, "Unsupported Media Type");
                response.setStatus(status);
            }
        }
        return super.getRepresentation(status, request, response);
    }
    
    private boolean isMediaTypeSupported(Request request) {
        MediaType contentType = request.getEntity().getMediaType();
        return getSupportedMediaTypes().contains(contentType);
    }
}