Jaxrs multipart

Question

I\'m trying to perform a request to a jaxrs service which has media type set to multipart/form-data. This request contains a list of entities(xml) and an image(png,

Answer 1

I do not wish to include any libraries from apache.cxf, resteasy or anything of the sort. All I want to rely on is the jaxrs api

You can't "rely on" the API, since it contains only interfaces. Classes that implement that interfaces come from RESTeasy, or Jersey, or CXF.

and a 415 when I run the request towards an embedded openejb

415 means "Method not supported", which happens when you send GET request to a PUT-expecting resource.

I would recommend to use POST instead of PUT in this case. I suspect that @FormParam is not suitable to work with PUT, in your particular case.