8281585: Remove unused imports under test/lib and jtreg/gc

[lkorinth]

Remove unused imports under test/lib and jtreg/gc. They create lots of warnings if editing using an IDE. Tests in hotspot_gc passed.

---

Progress

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

Issue

• JDK-8281585: Remove unused imports under test/lib and jtreg/gc

Reviewers

• David Holmes (@dholmes-ora - Reviewer)
• Serguei Spitsyn (@sspitsyn - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk pull/7426/head:pull/7426
$ git checkout pull/7426

Update a local copy of the PR:
$ git checkout pull/7426
$ git pull https://git.openjdk.java.net/jdk pull/7426/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 7426

View PR using the GUI difftool:
$ git pr show -t 7426

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk/pull/7426.diff

[bridgekeeper]

👋 Welcome back lkorinth! 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]

@lkorinth The following labels will be automatically applied to this pull request:

• core-libs
• hotspot
• security
• serviceability

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing lists. If you would like to change these labels, use the /label pull request command.

[mlbridge]

Webrevs

• 01: Full - Incremental (7d3e7a1b)
• 00: Full (6aaa1a3a)

[dholmes-ora]

Looks fine. The proof of these changes is in compiling the files - how did you test the non-gc-test changes?

Thanks,
David

[openjdk]

@lkorinth 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:

8281585: Remove unused imports under test/lib and jtreg/gc

Reviewed-by: dholmes, sspitsyn

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:

• 4ff5824: 8281100: Spurious "variable might not have been initialized" with sealed class switch
• d254cf2: 8281638: jfr/event/allocation tests fail with release VMs after JDK-8281318 due to lack of -XX:+UnlockDiagnosticVMOptions
• 4d64076: 8047749: javadoc for getPathBounds() in TreeUI and BasicTreeUI is incorrect
• 90939cb: 8281626: NonblockingQueue should use nullptr
• 3a13425: 8072070: Improve interpreter stack banging
• 8441d51: 8281419: The source data for the color conversion can be discarded
• a037b3c: 8281460: Let ObjectMonitor have its own NMT category
• 65831eb: 8281318: Improve jfr/event/allocation tests reliability
• eee6a56: 8281522: Rename ADLC classes which have the same name as hotspot variants
• 84868e3: 8281275: Upgrading from 8 to 11 no longer accepts '/' as filepath separator in gc paths
• ... and 5 more: https://git.openjdk.java.net/jdk/compare/c820d1acb7c6e600a890e4205eef0be8a4c7a791...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.

[dholmes-ora]

Forgot to mention copyright years need updating before integrating! Thanks.

[lkorinth]

I have a maven project that compiles test/lib and jtreg/gc, so everything changed does compile, I should have mentioned that. I have updated copyright year on all files now as well.

[sspitsyn]

Looks good.
Thanks,
Serguei

[dholmes-ora]

Looks good.

Thanks.

[lkorinth]

Thanks David and Serguei!

/integrate

[openjdk]

Going to push as commit 2604a88.
Since your change was applied there have been 39 commits pushed to the master branch:

• 534e557: 8256368: Avoid repeated upcalls into Java to re-resolve MH/VH linkers/invokers
• 95f198b: 8274980: Improve adhoc build version strings
• c61d629: 8281553: Ensure we only require liveness from mach-nodes with barriers
• 2597206: 8280783: Parallel: Refactor PSCardTable::scavenge_contents_parallel
• 2632d40: 8281637: Remove unused VerifyOption_G1UseNextMarking
• 46f5229: 8281539: IGV: schedule approximation computes immediate dominators wrongly
• 1ef45c5: 8280799: С2: assert(false) failed: cyclic dependency prevents range check elimination
• 483d4b9: 8281505: Add CompileCommand PrintIdealPhase
• adbe066: 8239927: Product variable PrefetchFieldsAhead is unused and should be removed
• eff5daf: 8274939: Incorrect size of the pixel storage is used by the robot on macOS
• ... and 29 more: https://git.openjdk.java.net/jdk/compare/c820d1acb7c6e600a890e4205eef0be8a4c7a791...master

Your commit was automatically rebased without conflicts.

[openjdk]

@lkorinth Pushed as commit 2604a88.

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