8346871: Improve robustness of java/util/zip/EntryCount64k.java test

[GoeLin]

I backport this for parity with 17.0.17-oracle.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8346871 needs maintainer approval

Integration blocker

 ⚠️ Dependency #3649 must be integrated first

Issue

• JDK-8346871: Improve robustness of java/util/zip/EntryCount64k.java test (Sub-task - P4 - Requested)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/3651/head:pull/3651
$ git checkout pull/3651

Update a local copy of the PR:
$ git checkout pull/3651
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/3651/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3651

View PR using the GUI difftool:
$ git pr show -t 3651

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/3651.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back goetz! A progress list of the required criteria for merging this PR into pr/3649 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 (137b9aef)