Within a fiber waiting on an intrinsic lock, Object#wait(), parks the executor thread. Is this behavior intended? If so, is there an alternative release-the-lock-and-suspend intrinsic for fibers? (Using 2019-01-20 build by Shipilev: https://builds.shipilev.net/openjdk-loom/openjdk-loom-latest-linux-x86_64-release.tar.xz )