8369041: Release memory after testing in ThreadsRunner.java

[albertnetymk]

Small patch of cleaning up no longer used data structures after testing is complete.

Test: tier1-5

---

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

Issue

• JDK-8369041: Release memory after testing in ThreadsRunner.java (Enhancement - P4)

Reviewers

• Aleksey Shipilev (@shipilev - Reviewer)
• Thomas Schatzl (@tschatzl - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/27606/head:pull/27606
$ git checkout pull/27606

Update a local copy of the PR:
$ git checkout pull/27606
$ git pull https://git.openjdk.org/jdk.git pull/27606/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 27606

View PR using the GUI difftool:
$ git pr show -t 27606

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/27606.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back ayang! 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]

@albertnetymk 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:

8369041: Release memory after testing in ThreadsRunner.java

Reviewed-by: shade, tschatzl

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 no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential 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.

[openjdk]

@albertnetymk To determine the appropriate audience for reviewing this pull request, one or more labels corresponding to different subsystems will normally be applied automatically. However, no automatic labelling rule matches the changes in this pull request. In order to have an "RFR" email sent to the correct mailing list, you will need to add one or more applicable labels manually using the /label pull request command.

Applicable Labels

• build
• client
• compiler
• core-libs
• graal
• hotspot
• hotspot-compiler
• hotspot-gc
• hotspot-jfr
• hotspot-runtime
• i18n
• ide-support
• javadoc
• jdk
• jmx
• net
• nio
• security
• serviceability
• shenandoah

[albertnetymk]

/cc hotspot-gc

[openjdk]

@albertnetymk
The hotspot-gc label was successfully added.

[mlbridge]

Webrevs

• 01: Full - Incremental (5043238e)
• 00: Full (58f36e18)

[shipilev]

Feels like these cleanup calls belong in finally block, so that they get cleaned up even on exception?

[albertnetymk]

Thanks for review.

/integrate

[openjdk]

Going to push as commit 596af0a.
Since your change was applied there have been 3 commits pushed to the master branch:

• b6a4cfe: 8367114: Update jdk.test.lib.net.SimpleHttpServer to use SimpleFileServer
• e3320a9: 8367610: Test tools/sincechecker/modules/java.base/JavaBaseCheckSince.java timed out on Windows
• 2bfada3: 8364927: Add @requires annotation to TestReclaimStringsLeaksMemory.java

Your commit was automatically rebased without conflicts.

[openjdk]

@albertnetymk Pushed as commit 596af0a.

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