I have submitted a patch fro this issue.
This patch will fix this issue.
Example:
* @response.representation.200.mediaType application/json
* @response.representation.200.example {_at_link
Examples#SAMPLE_ITEM}
Will generate JSON of Examples#SAMPLE_ITEM
* @response.representation.200.mediaType application/xml
* @response.representation.200.example {_at_link
Examples#SAMPLE_ITEM}
Will generate XML of Examples#SAMPLE_ITEM
Details:
http://java.net/jira/browse/JERSEY-638