resteasy-spring module puts stuff into package javax.ws.rs.core

resteasy-spring module puts stuff into package javax.ws.rs.core

https://github.com/resteasy/Resteasy/blob/master/resteasy-spring/src/main/java/javax/ws/rs/core/MediaTypeEditor.java

This can be issue for the future once jigsaw mode gets used - 2 jars can't contain classes in the same package.