As to the reason why, apparently Oracle revoked their TCK[0] license[1]. 0. https://en.wikipedia.org/wiki/Technology_Compatibility_Kit https://en.wikipedia.org

As to the reason why, apparently Oracle revoked their TCK[0] license[1]. 0. https://en.wikipedia.org/wiki/Technology_Compatibility_Kit https://en.wikipedia.org/wiki/Technology_Compatibility_Kit 1. https://twitter.com/volker_simonis/status/1052610654669074432 https://twitter.com/volker_simonis/status/105261065466907443... See this Reddit thread for more background: https://old.reddit.com/r/java/comments/l5m3p6/eclipse_to_host_only_tck_compliant_java_se https://old.reddit.com/r/java/comments/l5m3p6/eclipse_to_hos... IBM offers OpenJ9 binaries under the Semaru name here: https://developer.ibm.com/languages/java/semeru-runtimes https://developer.ibm.com/languages/java/semeru-runtimes