[jdk8u-dev] RFR: 8274597: Some of the dnd tests time out and fail intermittently [v3]

[Taizo Kurashige]

> Hi,
> 
> This is a backport of JDK-8274597: Some of the dnd tests time out and fail intermittently
> 
> Original patch applies cleanly except for path changes. This PR depends on #652 . So #652 shoud be integrated first.
> 
> Testing: AcceptDropMultipleTimes.java, MissedDragExitTest.java, ExtraDragEnterTest.java and MissingDragExitEventTest.java pass on Windows11
> 
> Thanks.

Taizo Kurashige 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 three additional commits since the last revision:

 - Merge branch 'openjdk:master' into JDK-8274597
 - Backport 669ac611b269bbda5c53d84173e5c9d0eb4ce919
 - Backport c3938ec18b4026d70d9654235dcd986d90344f5b

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

Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/653/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/653/files/d7d08ab5..352fcb31

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=653&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=653&range=01-02

  Stats: 971 lines in 35 files changed: 508 ins; 397 del; 66 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/653.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/653/head:pull/653

PR: https://git.openjdk.org/jdk8u-dev/pull/653