[JaxRS*] javax.ws.rs.core.Response vs. returnTypes

Description

Currently only the language jaxrs-cxf returns the "real" returnType in the method signatures as opposed to the generic javax.ws.rs.core.Response. All other Jaxrs-languages use javax.ws.rs.core.Response.

IMHO all JaxRS-languages should allow a CLI-flag ("useGenericJaxRsResponse", default value=true for backwards compatibility) whether to use the generic javax.ws.rs.core.Response or the real returnTypes in the method signatures.

Languages to be updated:

• jaxrs-cxf-cdi
• jaxrs-spec
• jaxrs (Jersey)
• jaxrs-cxf CXF already has the check, but no CLI flag to use the Jaxrs-Response

I added the check for the CLI-flag useGenericResponse

• jaxrs-cxf-client

I added the check for the CLI-flag useGenericResponse

• jaxrs-resteasy
• java
• spring

Swagger-codegen version

2.2.2