8218474: JComboBox display issue with GTKLookAndFeel

[GoeLin]

I think this is a good fix to have in 17.
The tests pass, the new one reproduces the error without the fix.

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Progress

• Change must not contain extraneous whitespace
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• JDK-8218474 needs maintainer approval

Issue

• JDK-8218474: JComboBox display issue with GTKLookAndFeel (Bug - P3 - Approved)

Reviewing

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[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]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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

8218474: JComboBox display issue with GTKLookAndFeel

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 2 new commits pushed to the master branch:

• 2633ee3: 8334560: [PPC64]: postalloc_expand_java_dynamic_call_sched does not copy all fields
• 6e37df1: 8349200: [JMH] time.format.ZonedDateTimeFormatterBenchmark fails

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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[openjdk]

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

[mlbridge]

Webrevs

• 00: Full (e1e811e9)

[GoeLin]

/integrate

[openjdk]

Going to push as commit 0935405.
Since your change was applied there have been 7 commits pushed to the master branch:

• 4c12437: 8298147: Clang warns about pointless comparisons
• 04a1b0d: 8297173: usageTicks and totalTicks should be volatile to ensure that different threads get the latest ticks
• 4f1eb59: 8296072: CertAttrSet::encode and DerEncoder::derEncode should write into DerOutputStream
• db834e0: 5074006: Swing JOptionPane shows tag as a string after newline
• f00607a: 8282863: java/awt/FullScreen/FullscreenWindowProps/FullscreenWindowProps.java fails on Windows 10 with HiDPI screen
• 2633ee3: 8334560: [PPC64]: postalloc_expand_java_dynamic_call_sched does not copy all fields
• 6e37df1: 8349200: [JMH] time.format.ZonedDateTimeFormatterBenchmark fails

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit 0935405.

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