[jdk11u-dev] RFR: 8356053: Test java/awt/Toolkit/Headless/HeadlessToolkit.java fails by timeout [v2]

[Sergey Bylokhov]

> Hi all,
> 
> This pull request contains a backport of commit [375f3dc9](https://github.com/openjdk/jdk/commit/375f3dc9ed0f1704e726d0d704420c38a0a5513c) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Sergey Bylokhov on 9 May 2025 and was reviewed by Phil Race and Alexander Zuev.
> 
> The patch doesn't apply cleanly because the deleted lines use a different URL in jdk11u. That's because [JDK-8295470](https://bugs.openjdk.org/browse/JDK-8295470) wasn't backported there.
> 
> Thanks!

Sergey Bylokhov has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into backport-mrserb-375f3dc9-master
 - Backport 375f3dc9ed0f1704e726d0d704420c38a0a5513c

-------------

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/3041/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/3041/files/fefba75d..be117369

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3041&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3041&range=00-01

  Stats: 3703 lines in 168 files changed: 927 ins; 2636 del; 140 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3041.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3041/head:pull/3041

PR: https://git.openjdk.org/jdk11u-dev/pull/3041