FasterXML/jackson-jaxrs-json-provider — pull request #14 by derjan1982 (2012-07-06 13:32:42+00:00)
Title: Custom JSON MIME types

Using a custom MIME type like 'application/vnd.type+json'
will not work. While the provider allows them in the isJson()
method, the @Consumes and @Provides annotation on the
class are evaluated first - at least by Jersey.
Setting wildcard types into these annotations allows JAX-RS
implementations to use the provider also for custom JSON
types as above. Using Jersey's JSON integration provides
a workaround for this bug, but with this fix Jersey's JSON
integration is not required at all.