On friday I did with Jean-Louis Monteiro the Lorraine JUG. I presented Apache JCS which is a nice Java Caching solution implementing now JCache specification.
Slides are available here: http://rmannibucau.github.io/2015/LorraineJUG/#/.
And few code samples/examples can be found here (this is a maven project you can open in your IDE): https://github.com/rmannibucau/rmannibucau.github.com/tree/master/2015/LorraineJUG/demo.
Don’t hesitate to get in touch the Apache JCS community if you want more information (use Apache Commons mailing list – firstname.lastname@example.org – and just specify [JCS] in the subject), we’ll be very happy to help you!