8274893: Update java.desktop classes to use try-with-resources

[TimPushkin]

Backport of JDK-8274893 from JDK 17, for parity with Oracle 11.0.27.

The only conflict was trivial: in imports of JEditorPane which uses * imports in this release, so no change was needed.

Testing: GitHub CI, jdk_imageio test group locally (mac/arm64)

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• JDK-8274893 needs maintainer approval
• Commit message must refer to an issue

Integration blocker

 ⚠️ Dependency #3081 must be integrated first

Issue

• JDK-8274893: Update java.desktop classes to use try-with-resources (Enhancement - P5 - Requested)

Reviewers

• Alexey Bakhtin (@alexeybakhtin - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/3082/head:pull/3082
$ git checkout pull/3082

Update a local copy of the PR:
$ git checkout pull/3082
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/3082/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3082

View PR using the GUI difftool:
$ git pr show -t 3082

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/3082.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back tpushkin! A progress list of the required criteria for merging this PR into pr/3081 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 change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (fecde385)

[alexeybakhtin]

Looks good to me

[TimPushkin]

/approval request Backporting for parity with Oracle and to make a dependent in-progress backport cleaner.
Low risk. The change is a cleanup limited to jdk.desktop, it should not change the behavior. It has been running in newer LTS releases for a while now. There was a single trivial conflict (imports).
Testing: GitHub CI, jdk_imageio test group locally (mac/arm64).

[openjdk]

@TimPushkin
8274893: The approval request has been created successfully.