[jdk11u-dev] RFR: 8222323: ChildAlwaysOnTopTest.java fails with "RuntimeException: Failed to unset alwaysOnTop"

[Taizo Kurashige]

Hi,

This is a backport of JDK-8222323: ChildAlwaysOnTopTest.java fails with "RuntimeException: Failed to unset alwaysOnTop"

ChildAlwaysOnTopTest.java is not excluded by ProblemList in 11u. But I detected the test failed on Windows Server 2016.

Also original patch does not apply cleanly to 11u, because the fix uses "StringBuffer.isEmpty()" published in JDK15. I fixed the test so as not to use "StringBuffer.isEmpty()".

Thanks.

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Commit messages:
 - Backport 837928ba7955dbfd4a9c966209c3469c0fb5e195
 - Backport 837928ba7955dbfd4a9c966209c3469c0fb5e195

Changes: https://git.openjdk.org/jdk11u-dev/pull/2040/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2040&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8222323
  Stats: 222 lines in 1 file changed: 128 ins; 34 del; 60 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2040.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2040/head:pull/2040

PR: https://git.openjdk.org/jdk11u-dev/pull/2040