What is the timeline for supporting Spring Boot with JAX-RS 2.1 (using Jersey)?
Jersey added support for JAX-RS 2.1 (JAX-RS API) in Jersey 2.26 (released 2017/09/06). This changed the Jersey support for HTTP Server-Sent Events (SSE) from a Jersey specific implementation to an implementation based on the JAX-RS API.
The Spring Boot Jersey integration (spring-boot-starter-jersey), release 1.5.8, uses Jersey 2.25.1.
Using spring boot 1.5.8 and overriding the jersey versions from spring-boot-starter-jersey to use 2.26 does not seem to work. The Sse and SseEventSink objects do not get injected into the request handlers (when using @Context).
I am not entirely sure if this is an issue with Spring Boot or Jersey. Hence the more general question, when Spring Boot with JAX-RS 2.1 will be supported.
JAX-RS 2.1 will be supported via Jersey 2.26 in Spring Boot 2. It has already been merged.