8284680: sun.font.FontConfigManager.getFontConfig() leaks charset

[zhengyu123]

A clean backport to fix memory leaks.

Test:

• jdk_2d on Linux x86_64

---

Progress

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

Issue

• JDK-8284680: sun.font.FontConfigManager.getFontConfig() leaks charset

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk11u-dev pull/1131/head:pull/1131
$ git checkout pull/1131

Update a local copy of the PR:
$ git checkout pull/1131
$ git pull https://git.openjdk.java.net/jdk11u-dev pull/1131/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1131

View PR using the GUI difftool:
$ git pr show -t 1131

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk11u-dev/pull/1131.diff

[bridgekeeper]

👋 Welcome back zgu! 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]

@zhengyu123 This change now passes all automated pre-integration checks.

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

8284680: sun.font.FontConfigManager.getFontConfig() leaks charset

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 2 new commits pushed to the master branch:

• bb5d2bb: 8239902: [macos] Remove direct usage of JSlider, JProgressBar classes in CAccessible class
• 16d0b7d: 8210107: vmTestbase/nsk/stress/network tests fail with Cannot assign requested address (Bind failed)

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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.

[mlbridge]

Webrevs

• 00: Full (cb838ee0)

[zhengyu123]

/integrate

[openjdk]

Going to push as commit 027302b.
Since your change was applied there have been 48 commits pushed to the master branch:

• ab7d1ca: 8284956: Potential leak awtImageData/color_data when initializes X11GraphicsEnvironment
• d7b6f7f: 8274506: TestPids.java and TestPidsLimit.java fail with podman run as root
• 1fbbd15: 8287366: Improve test failure reporting in GHA
• 8363d9d: 8286582: Build fails on macos aarch64 when using --with-zlib=bundled
• 27faf15: 8273526: Extend the OSContainer API pids controller with pids.current
• 6c389cd: 8278519: serviceability/jvmti/FieldAccessWatch/FieldAccessWatch.java failed "assert(handle != __null) failed: JNI handle should not be null"
• 43e6fdb: 8281569: Create tests for Frame.setMinimumSize() method
• f129738: 8288754: GCC 12 fails to build zReferenceProcessor.cpp
• e16aaca: 8253829: Wrong length compared in SSPI bridge
• 1c1f7a1: 8210722: JAXP Tests: CatalogSupport2 and CatalogSupport3 generate incorrect messages upon failure
• ... and 38 more: https://git.openjdk.org/jdk11u-dev/compare/a665027fb79fdf750c180d24ac4b586320994b76...master

Your commit was automatically rebased without conflicts.

[openjdk]

@zhengyu123 Pushed as commit 027302b.

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