8263846: Bad JNI lookup getFocusOwner in accessibility code on Mac OS X

[omikhaltsova]

I'd like to backport JDK-8263846 to jdk13u for parity with jdk11u.
The original patch applied cleanly.
It's reasonable to add the reference check before using it.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8263846: Bad JNI lookup getFocusOwner in accessibility code on Mac OS X

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk13u-dev pull/187/head:pull/187
$ git checkout pull/187

Update a local copy of the PR:
$ git checkout pull/187
$ git pull https://git.openjdk.java.net/jdk13u-dev pull/187/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 187

View PR using the GUI difftool:
$ git pr show -t 187

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk13u-dev/pull/187.diff

[bridgekeeper]

👋 Welcome back omikhaltcova! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

@omikhaltsova This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8263846: Bad JNI lookup getFocusOwner in accessibility code on Mac OS X

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential automatic rebasing, please check the documentation for the /integrate command for further details.

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[omikhaltsova]

/integrate

[openjdk]

@omikhaltsova
Your change (at version 691a4df) is now ready to be sponsored by a Committer.

[mlbridge]

Webrevs

• 00: Full (691a4dfb)

[yan-too]

/sponsor

[openjdk]

@yan-too @omikhaltsova Since your change was applied there have been 9 commits pushed to the master branch:

• 1d1837b: Merge
• f007648: 8257001: Improve HTTP client support
• 02ef513: 8249906: Enhance opening JARs
• 7017551: 8261183: Follow on to Make lists of normal filenames
• 0c5501b: 8253799: Make lists of normal filenames
• 7002ef5: 8250568: Less ambiguous processing
• ca2baf7: 8259633: compiler/graalunit/CoreTest.java fails with NPE after JDK-8244543
• 079cda1: 8244543: Enhanced handling of abstract classes
• 0acf828: 8244473: Contextualize registration for JNDI

Your commit was automatically rebased without conflicts.

Pushed as commit 6313a7c.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.