RFR: Merge jdk:master

[J. Duke]

Hi all,

this is an _automatically_ generated pull request to notify you that there are 3910 commits from the branch `jdk:master`that can **not** be merged into the branch `master`:

The following files contains merge conflicts:

- make/autoconf/build-aux/config.sub
- make/autoconf/toolchain.m4
- make/modules/java.base/lib/CoreLibraries.gmk

All Committers in this [project](https://openjdk.org/census#mobile) have access to my [personal fork](https://github.com/openjdk-bot/mobile) 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.org/display/skara#Skara-Personalforks) of the [openjdk/mobile](https://github.com/openjdk/mobile) repository.


# Ensure target branch is up to date
$ git checkout master
$ git pull https://github.com/openjdk/mobile.git master

# Fetch and checkout the branch for this pull request
$ git fetch https://github.com/openjdk-bot/mobile.git +10:openjdk-bot-10
$ git checkout openjdk-bot-10

# Merge the target branch
$ git merge master


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 jdk: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/mobile.git openjdk-bot-10:10


_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:
 - 8302167: Avoid allocating register in fast_lock()
 - 8278965: crash in SymbolTable::do_lookup
 - 8301480: Replace NULL with nullptr in os/posix
 - 8301224: Replace NULL with nullptr in share/gc/shared/
 - 8301578: Perform output outside synchronization in Module.class
 - 8302004: InlineTree should consult replay file in release build
 - 8301072: Replace NULL with nullptr in share/oops/
 - 8302069: javax/management/remote/mandatory/notif/NotifReconnectDeadlockTest.java update
 - 8302125: Make G1 full gc abort the VM after failing VerifyDuringGC verification
 - 8302117: IgnoreUnrecognizedVMOptions flag causes failure in ArchiveHeapTestClass
 - ... and 3900 more: https://git.openjdk.org/mobile/compare/67755edd...db1b48ef

The webrev contains the conflicts with master:
 - merge conflicts: https://webrevs.openjdk.org/?repo=mobile&pr=16&range=00.conflicts

Changes: https://git.openjdk.org/mobile/pull/16/files
  Stats: 1157716 lines in 14366 files changed: 653199 ins; 350630 del; 153887 mod
  Patch: https://git.openjdk.org/mobile/pull/16.diff
  Fetch: git fetch https://git.openjdk.org/mobile pull/16/head:pull/16

PR: https://git.openjdk.org/mobile/pull/16