8285698: Create a test to check the focus stealing of JPopupMenu from JComboBox

[GoeLin]

I backport this for parity with 11.0.17-oracle.

---

Progress

• Change must not contain extraneous whitespace
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Issue

• JDK-8285698: Create a test to check the focus stealing of JPopupMenu from JComboBox

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev pull/1367/head:pull/1367
$ git checkout pull/1367

Update a local copy of the PR:
$ git checkout pull/1367
$ git pull https://git.openjdk.org/jdk11u-dev pull/1367/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1367

View PR using the GUI difftool:
$ git pr show -t 1367

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/1367.diff

[bridgekeeper]

👋 Welcome back goetz! 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]

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

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

8285698: Create a test to check the focus stealing of JPopupMenu from JComboBox

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[mlbridge]

Webrevs

• 00: Full (3082dbb9)

[GoeLin]

/integrate

[openjdk]

Going to push as commit dab4c44.
Since your change was applied there have been 3 commits pushed to the master branch:

• 7957658: 8210047: some pages contain content outside of landmark region
• bcdcc9f: 8240281: Remove failing assertion code when selecting first memory state in SuperWord::co_locate_pack
• 32d4246: 8193942: Regression automated test '/open/test/jdk/javax/swing/JFrame/8175301/ScaledFrameBackgroundTest.java' fails

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit dab4c44.

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