We shipped Ahead-of-Time compilation (the jaotc tool) in JDK 9, as an
experimental feature. We shipped Graal as an experimental JIT compiler
in JDK 10. We haven't seen much use of these features, and the effort
required to support and enhance them is significant. We therefore
intend to remove these features from Oracle builds as of JDK 16.
We'll leave the sources for these features in the repository, in case
any one else is interested in building them. We'll continue to build
and ship JVMCI as an experimental feature in Oracle builds.