JAX-RS 2.1 (JSR 370) has been finally released and JAX-RS users can now start looking forward to experimenting with the new features very soon, with a number of final JAX-RS 2.1 implementations being already available (such as Jersey) or nearly ready to be released.
Apache CXF 3.2.0 is about to be released shortly, and all of the new JAX-RS 2.1 features have been implemented: reactive client API extensions, client/server Server Sent Events support, returning CompletableFuture from the resource methods and other minor improvements.
As part of the 2.1 work (but also based on the CXF JIRA request) we also introduced RxJava Observable and recently - RxJava2 Flowable/Observable client and server extensions. One can use them as an alternative to using CompletableFuture on the client or/and the server side. Note, the combination of RxJava2 Flowable with JAX-RS AsyncResponse on the server is quite cool.
The other new CXF extension which was introduced as part of the JAX-RS 2.1 work is the NIO extension, this will be a topic of the next post.
Pavel Bucek and Santiago Pericas-Geertsen were the great JAX-RS 2.1 spec leads. Andriy Redko spent a lot of his time with getting CXF 3.2.0 JAX-RS 2.1 ready.