Leads to issues, if resources throwing an exception do not declare a produced media type themselves.
For example with resteasy, not only Jackson is a suitable MessageBodyWriter in this case, but e.g. also a Yaml Writer. However, we only want json error responses.

see https://groups.google.com/forum/embed/?place=forum/camunda-bpm-users&showsearch=true&showpopout=true#!topic/camunda-bpm-users/52bxgeaJwO8