8318089: Class space not marked as such with NMT when CDS is off

[tstuefe]

Hi all,

this fixes a display problem in NMT, where the class space size is incorrectly shown as "unknown" memory. Its very low-risk.

This pull request contains a backport of commit c0e154c8 from the openjdk/jdk repository.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8318089 needs maintainer approval

Issue

• JDK-8318089: Class space not marked as such with NMT when CDS is off (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u.git pull/273/head:pull/273
$ git checkout pull/273

Update a local copy of the PR:
$ git checkout pull/273
$ git pull https://git.openjdk.org/jdk21u.git pull/273/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 273

View PR using the GUI difftool:
$ git pr show -t 273

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u/pull/273.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back stuefe! A progress list of the required criteria for merging this PR into master 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 backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @tstuefe This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (6a20778b)

[openjdk]

@tstuefe 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:

8318089: Class space not marked as such with NMT when CDS is off

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 15 new commits pushed to the master branch:

• f4ed66e: 8318705: [macos] ProblemList java/rmi/registry/multipleRegistries/MultipleRegistries.java
• 305e9ec: 8315971: ProblemList containers/docker/TestMemoryAwareness.java on linux-all
• c5a6a74: 8317692: jcmd GC.heap_dump performance regression after JDK-8292818
• 5ebc02b: 8317751: ProblemList ConsumeForModalDialogTest.java, MenuItemActivatedTest.java & MouseModifiersUnitTest_Standard.java for windows
• 5dd22a9: 8317959: Check return values of malloc in native java.base coding
• e3a2eeb: 8038244: (fs) Check return value of malloc in Java_sun_nio_fs_AixNativeDispatcher_getmntctl()
• bcd73c5: 8310512: Cleanup indentation in jfc files
• b7e0c4a: 8315706: com/sun/tools/attach/warnings/DynamicLoadWarningTest.java real fix for failure on AIX
• eb6ea91: 8316060: test/hotspot/jtreg/runtime/reflect/ReflectOutOfMemoryError.java may fail if heap is huge
• 00698a4: 8317373: Add Telia Root CA v2
• ... and 5 more: https://git.openjdk.org/jdk21u/compare/5121ee686b463291c415e90c96950b4c49183485...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.

[tstuefe]

/integrate

[openjdk]

Going to push as commit bb8db71.
Since your change was applied there have been 31 commits pushed to the master branch:

• 6e21766: 8318953: RISC-V: Small refactoring for MacroAssembler::test_bit
• a96de29: 8161536: sun/security/pkcs11/sslecc/ClientJSSEServerJSSE.java fails with ProviderException
• 05deef8: 8301457: Code in SendPortZero.java is uncommented even after JDK-8236852 was fixed
• 599b30d: 8309778: java/nio/file/Files/CopyAndMove.java fails when using second test directory
• de57df4: 8316414: C2: large byte array clone triggers "failed: malformed control flow" assertion failure on linux-x86
• c3c2b9f: 8303737: C2: Load can bypass subtype check that enforces it's from the right object type
• ae5b92c: 8315442: Enable parallelism in vmTestbase/nsk/monitoring/stress/thread tests
• 3e46e29: 8315774: Enable parallelism in vmTestbase/gc/g1/unloading tests
• 50e1a34: 8315437: Enable parallelism in vmTestbase/nsk/monitoring/stress/classload tests
• bbc5ad7: 8301341: LinkedTransferQueue does not respect timeout for poll()
• ... and 21 more: https://git.openjdk.org/jdk21u/compare/5121ee686b463291c415e90c96950b4c49183485...master

Your commit was automatically rebased without conflicts.

[openjdk]

@tstuefe Pushed as commit bb8db71.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.