OpenJDK has used thin locks since back when it was called HotSpot. The fact that the JVM is hanging in futexes doesn’t meant anything for the purpose of this d

OpenJDK has used thin locks since back when it was called HotSpot. The fact that the JVM is hanging in futexes doesn’t meant anything for the purpose of this discussion. Futexes are _the_ OS locking primitive on Linux so I would expect modern JVM thin locks to bottom out in a futex syscall. That doesn’t mean that the JVM is “using” futexes in the sense of the original post.