Together with other Java EE leaders, Oracle announced in 2017 that they will open source Java EE at the Eclipse Foundation under the name of Jakarta EE. With the creation of both Eclipse MicroProfile and Eclipse OpenJ9 projects, the Eclipse Foundation has become the place to be for Enterprise Java technologies.
It will really be a landscape change for you whether you’re a Java developer or architect, using Java EE full profile or the web profile or even Spring(Boot). All the Java EE technologies and processes will become truly open source, including: the reference implementations (Glassfish will be released as Eclipse GlassFish, Jersey as Eclipse Jersey, …); the Technology Compatibility Kits (TCK) and Compatibility Test Suites (CTS) will certify compliance of implementations (WildFly, OpenLiberty, TomEE, …) against future Jakarta EE releases; and the 40+ specifications will now be managed in the open.

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