Headlands "Payara" Release Is Available Headlands exposes JCache API via REST and uses hazelcast.org as default JCache implementation. The Payara server also comes with JCache support and with built-in Hazelcast. The recent Headlands release is also available without hazelcast and jcache libraries. The WAR headlands.war is skinnier and comes with 56 kB. See you at Java EE Workshops at Munich Airport, Terminal 2 or Virtual Dedicated Workshops / consulting NEW airhacks.com workshops: MicroProfile with Quarkus and Micro Frontends with Web Components at MUC airport airhacks.fm the podcast: Stay in touch: airhacks.news.