One of the items we'd like to add support for in Java EE 8 is
Server-Sent Events. We've considered several options for how
to add this support and concluded that JAX-RS seems like the best
choice. Santiago (JAX-RS spec lead) has written up the options
and our conclusion here:
https://java.net/projects/javaee-spec/downloads/download/SSE-in-EE8.pdf
Please let us know if you have any concerns with including SSE
support in JAX-RS. Otherwise, expect to see this proposed in the
next JAX-RS JSR, to be submitted this summer.
Thanks.
Bill