8278472: Invalid value set to CANDIDATEFORM structure

[aivanov-jdk]

According to the Windows API reference, dwStyle of CANDIDATEFORM structure should be set to CFS_CANDIDATEPOS or CFS_EXCLUDE. So, CFS_POINT is wrong here.

There are two instances in AwtComponent::SetCandidateWindow in awt_Component.cpp where the incorrect value is used.

I've created the PR for jdk18 as it's a low-risk fix. If it's inappropriate at this time, I'll open the PR for mainline jdk.

---

Progress

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Issue

• JDK-8278472: Invalid value set to CANDIDATEFORM structure

Reviewers

• Naoto Sato (@naotoj - Reviewer)

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[mlbridge]

Webrevs

• 00: Full (e359ca9d)

[aivanov-jdk]

Any volunteers to review?

[naotoj]

Looks correct.

[openjdk]

@aivanov-jdk 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:

8278472: Invalid value set to CANDIDATEFORM structure

Reviewed-by: naoto

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 24 new commits pushed to the master branch:

• 95a3010: 8275830: C2: Receiver downcast is missing when inlining through method handle linkers
• 58b5fb3: 8265317: [vector] assert(payload->is_object()) failed: expected 'object' value for scalar-replaced boxed vector but got: NULL
• 06f3713: 8279379: GHA: Print tests that are in error
• e7244c1: 8278966: two microbenchmarks tests fail "assert(!jvms->method()->has_exception_handlers()) failed: no exception handler expected" after JDK-8275638
• b4b0328: 8278824: Uneven work distribution when scanning heap roots in G1
• 54b800d: 8271202: C1: assert(false) failed: live_in set of first block must be empty
• 2945b78: 8279195: Document the -XX:+NeverActAsServerClassMachine flag
• 6588bed: 8278889: AArch64: [vectorapi] VectorMaskLoadStoreTest.testMaskCast() test fail
• 04ad668: 8279204: [BACKOUT] JDK-8278413: C2 crash when allocating array of size too large
• 730f670: 8268297: jdk/jfr/api/consumer/streaming/TestLatestEvent.java times out
• ... and 14 more: https://git.openjdk.java.net/jdk18/compare/467f654916764751746934f80877d49a5f107194...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[prsadhuk]

It looks reasonable to me.. But for confidence, did you check if JDK-8147842, JDK-8184016 and JDK-8183504 still behaves properly.
Also, I guess since ATR is almost done, I think it will be more apt to place this PR on the mainline

[aivanov-jdk]

Submitted a new PR for the mainline.