Java EE Is Dead -- Completely Dead
J2EE was "killed" by Java EE 5 and JDK 1.5 (J2SE 5.0) in the year 2009.
After another 10 years Java EE 8 also became an obsolete dead end. There will be no more Java EE 9.
Jakarta EE 8 starts where Java EE 8 ends. There are no new features on purpose - so there is also nothing to migrate. However, a binary compatible Jakarta EE 8 API can be already used instead of the legacy Java EE 8 API.
Jakarta EE 8 comes with a collection of specifications (except PDFs), JavaDocs, TCKs a list of compatible runtimes and a news aggregator: https://jakartablogs.ee.See you at Web, MicroProfile 3.X and Jakarta EE 8 Workshops at Munich Airport, Terminal 2 or Virtual Dedicated Workshops / consulting. Is Munich's airport too far? Learn from home: airhacks.io.