master
8307058: Implementation of Generational ZGC
8307806: Rename Atomic::fetch_and_add and friends
8216167: Update include guards to reflect correct directories
8350106: [PPC] Avoid ticks_unknown_not_Java AsyncGetCallTrace() if JavaFrameAnchor::_last_Java_pc not set
8288752: Split thread implementation files
8221554: aarch64 cross-modifying code
8350201: Out of bounds access on Linux aarch64 in os::print_register_info
8290840: Refactor the "os" class
8269853: Prefetch::read should accept pointer to const
8283326: Implement SafeFetch statically