Features filed as part of OpenJDK’s JDK 17 include: Removal of the experimental AOT and JIT compiler, which has seen little use but requires significant maintenance effort. The plan calls for maintaining the Java-level JVM compiler interface so developers can keep using externally built versions of the compiler for JIT compilation. AOT compilation (the jaotc tool) was incorporated into JDK 9 as an experimental feature. The tool uses the Graal compiler, which is itself written in Java, for AOT compilation. These experimental features were not included in JDK 16 builds published by Oracle and no one complained. Under the plan prescribed, three JDK modules would be removed: jdk.aot (the jaotc tool); internal.vm.compiler, the Graal compiler; and jdk.internal.vm.compiler.management, the Graal MBean. HotSpot code related to AOT compilation also would be removed.