In 7.2.0, I'm adding support for POJO REST requests that don't include Accept and Media-Type headers.
Previously, if your requests did not contain Accept or Content-Type headers, you had to use Readers and Writers to work with the HTTP request and response bodies. Otherwise you would get Not Acceptable (406) and Unsupported Media Type (415) response codes.
This behavior is now being relaxed. If your request does not contain media-type headers, then you can still used POJOs for requests and responses.
For example, this is a snippet from the Javadoc on the Body annotation describing the types of objects you can use in REST Java methods to represent the body of the request: