[foreign-memaccess+abi] RFR: Merge master

[J.Duke]

Hi all,

this is an _automatically_ generated pull request to notify you that there are 85 commits from the branch `master`that can **not** be merged into the branch `foreign-memaccess+abi`:

The following files contains merge conflicts:

- src/hotspot/cpu/x86/frame_x86.cpp
- src/hotspot/share/prims/universalUpcallHandler.cpp
- src/hotspot/share/prims/universalUpcallHandler.hpp
- src/hotspot/share/runtime/javaFrameAnchor.hpp
- src/hotspot/share/runtime/thread.cpp

All Committers in this [project](https://openjdk.java.net/census#panama) have access to my [personal fork](https://github.com/openjdk-bot/panama-foreign) and can therefore help resolve these merge conflicts (you may want to coordinate who should do this).
The following paragraphs will give an example on how to solve these merge conflicts and push the resulting merge commit to this pull request.
The below commands should be run in a local clone of your [personal fork](https://wiki.openjdk.java.net/display/skara#Skara-Personalforks) of the [openjdk/panama-foreign](https://github.com/openjdk/panama-foreign) repository.


# Ensure target branch is up to date
$ git checkout foreign-memaccess+abi
$ git pull https://github.com/openjdk/panama-foreign.git foreign-memaccess+abi

# Fetch and checkout the branch for this pull request
$ git fetch https://github.com/openjdk-bot/panama-foreign.git +103:openjdk-bot-103
$ git checkout openjdk-bot-103

# Merge the target branch
$ git merge foreign-memaccess+abi


When you have resolved the conflicts resulting from the `git merge` command above, run the following commands to create a merge commit:


$ git add paths/to/files/with/conflicts
$ git commit -m 'Merge master'



When you have created the merge commit, run the following command to push the merge commit to this pull request:


$ git push https://github.com/openjdk-bot/panama-foreign.git openjdk-bot-103:103


_Note_: if you are using SSH to push commits to GitHub, then change the URL in the above `git push` command accordingly.

Thanks,
J. Duke

-------------

Commit messages:
 - Automatic merge of jdk:master into master
 - 8270894: Use acquire semantics in ObjectSynchronizer::read_stable_mark()
 - 8271060: Merge G1CollectedHeap::determine_start_concurrent_mark_gc and G1Policy::decide_on_conc_mark_initiation
 - 8271149: remove unreferenced functions from EncodingSupport_md.c
 - 8271147: java/nio/file/Path.java javadoc typo
 - Merge
 - 8271162: runtime/StackTrace/LargeClassTest.java can be run in driver mode
 - 8271158: runtime/handshake/HandshakeTimeoutTest.java test doesn't check exit code
 - 8271169: runtime/Safepoint/TestAbortVMOnSafepointTimeout.java can be run in driver mode
 - 8271160: runtime/jni/checked/TestCheckedJniExceptionCheck.java doesn't set -Djava.library.path
 - ... and 75 more: https://git.openjdk.java.net/panama-foreign/compare/708258b1...dd878510

The webrev contains the conflicts with foreign-memaccess+abi:
 - merge conflicts: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=572&range=00.conflicts

Changes: https://git.openjdk.java.net/panama-foreign/pull/572/files
  Stats: 4078 lines in 199 files changed: 2620 ins; 646 del; 812 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/572.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/572/head:pull/572

PR: https://git.openjdk.java.net/panama-foreign/pull/572