8258805: Japanese characters not entered by mouse click on Windows 10

[tkiriyama]

Hi all,
I would like to backport this bug fix (JDK-8258805) to jdk8. It is clean.
This fix depends on the fix for JDK-8212678. Since I have already created a backport pull request for JDK-8212678, it is desirable that they be integrated together.
#706

I have confirmed that the issue is resolved on Windows 11 and Windows Server 2016.
I have also confirmed that the java/awt/im and java/awt/InputMethods tests pass.

Thank you.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8258805 needs maintainer approval

Integration blocker

 ⚠️ Dependency #706 must be integrated first

Issue

• JDK-8258805: Japanese characters not entered by mouse click on Windows 10 (Bug - P3)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev.git pull/716/head:pull/716
$ git checkout pull/716

Update a local copy of the PR:
$ git checkout pull/716
$ git pull https://git.openjdk.org/jdk8u-dev.git pull/716/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 716

View PR using the GUI difftool:
$ git pr show -t 716

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/716.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back tkiriyama! A progress list of the required criteria for merging this PR into pr/706 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 change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

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

[mlbridge]

Webrevs

• 00: Full (762a0876)