8252648: Shenandoah: name gang tasks consistently

[shipilev]

Unclean backport, because Shenandoah 11u does not have concurrent weak reference processing and concurrent class unloading.

Additional testing:

• Linux x86_64 fastdebug hotspot_gc_shenandoah
• Inspecting AbstractGangTask uses in Shenandoah code

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8252648: Shenandoah: name gang tasks consistently

Reviewers

• Zhengyu Gu (@zhengyu123 - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk11u-dev pull/104/head:pull/104
$ git checkout pull/104

Update a local copy of the PR:
$ git checkout pull/104
$ git pull https://git.openjdk.java.net/jdk11u-dev pull/104/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 104

View PR using the GUI difftool:
$ git pr show -t 104

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk11u-dev/pull/104.diff

[bridgekeeper]

👋 Welcome back shade! 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.

[mlbridge]

Webrevs

• 00: Full (80f71279)

[shipilev]

Friendly reminder. @rkennke, @zhengyu123?

[zhengyu123]

Looks good.

[openjdk]

@shipilev This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8252648: Shenandoah: name gang tasks consistently

Reviewed-by: zgu

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 64 new commits pushed to the master branch:

• f700d37: 8255255: Update Apache Santuario (XML Signature) to version 2.2.1
• 227610d: 8267348: Rewrite gc/epsilon/TestClasses.java to use Metaspace with less classes
• d7a6e51: 8253899: Make IsClassUnloadingEnabled signature match specification
• 293d44f: 8262017: C2: assert(n != __null) failed: Bad immediate dominator info.
• 2a3d908: 8269661: JNI_GetStringCritical does not lock char array
• 6762216: 8267666: Add option to jcmd GC.heap_dump to use existing file
• 63c4ec2: 8259535: ECDSA SignatureValue do not always have the specified length
• 133eca0: 8235211: serviceability/attach/RemovingUnixDomainSocketTest.java fails with AttachNotSupportedException: Unable to open socket file
• 7501084: 8268965: TCP Connection Reset when connecting simple socket to SSL server
• d78e2be: 8227738: jvmti/DataDumpRequest/datadumpreq001 failed due to "exit code is 134"
• ... and 54 more: https://git.openjdk.java.net/jdk11u-dev/compare/d424c0ced4af3dc51aaa329b46c26e4ce9bea6d7...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.

[shipilev]

Got the push approval.

/integrate

[openjdk]

Going to push as commit 8ec02f3.
Since your change was applied there have been 65 commits pushed to the master branch:

• eaf59e0: 8256215: Shenandoah: re-organize saving/restoring machine state in assembler code
• f700d37: 8255255: Update Apache Santuario (XML Signature) to version 2.2.1
• 227610d: 8267348: Rewrite gc/epsilon/TestClasses.java to use Metaspace with less classes
• d7a6e51: 8253899: Make IsClassUnloadingEnabled signature match specification
• 293d44f: 8262017: C2: assert(n != __null) failed: Bad immediate dominator info.
• 2a3d908: 8269661: JNI_GetStringCritical does not lock char array
• 6762216: 8267666: Add option to jcmd GC.heap_dump to use existing file
• 63c4ec2: 8259535: ECDSA SignatureValue do not always have the specified length
• 133eca0: 8235211: serviceability/attach/RemovingUnixDomainSocketTest.java fails with AttachNotSupportedException: Unable to open socket file
• 7501084: 8268965: TCP Connection Reset when connecting simple socket to SSL server
• ... and 55 more: https://git.openjdk.java.net/jdk11u-dev/compare/d424c0ced4af3dc51aaa329b46c26e4ce9bea6d7...master

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev Pushed as commit 8ec02f3.

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