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

[omikhaltsova]

I'd like to backport JDK-8263846 to jdk15u 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/jdk15u-dev pull/28/head:pull/28
$ git checkout pull/28

Update a local copy of the PR:
$ git checkout pull/28
$ git pull https://git.openjdk.java.net/jdk15u-dev pull/28/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 28

View PR using the GUI difftool:
$ git pr show -t 28

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk15u-dev/pull/28.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.

[omikhaltsova]

/integrate

[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

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[openjdk]

@omikhaltsova
Your change (at version 53a8c61) is now ready to be sponsored by a Committer.

[mlbridge]

Webrevs

• 00: Full (53a8c611)

[yan-too]

/sponsor

[openjdk]

@yan-too @omikhaltsova Pushed as commit dc56503.

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