8347712: IllegalStateException on multithreaded ZipFile access with non-UTF8 charset

[jankratochvil]

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Multithreaded handling of ZIP files can throw an exception.

This backport is far from clean. The last commit resolves the conflicts.

The backport would be a little cleaner if there was backported as a pre-requisite JDK-8321156. But given there is a backward compatibility concern I have not backported it.

(jdk25 already contains it), jdk21, this jdk17.

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Progress

• [x] Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• [ ] JDK-8347712 needs maintainer approval
• [ ] JDK-8355975 needs maintainer approval
• [x] Change must not contain extraneous whitespace
• [x] Commit message must refer to an issue

Issues

• JDK-8347712: IllegalStateException on multithreaded ZipFile access with non-UTF8 charset (Bug - P3 - Requested)
• JDK-8355975: ZipFile uses incorrect Charset if another instance for the same ZIP file was constructed with a different Charset (Bug - P3 - Requested)

Reviewers

• Paul Hohensee (@phohensee - Reviewer)

Reviewing

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