[jdk21u-dev] RFR: 8347712: IllegalStateException on multithreaded ZipFile access with non-UTF8 charset

[Paul Hohensee]

On Tue, 8 Jul 2025 13:16:40 GMT, Jan Kratochvil <jkratochvil at openjdk.org> wrote:

> 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](https://bugs.openjdk.org/browse/JDK-8321156?focusedId=14630523&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14630523) I have not backported it.

Marked as reviewed by phh (Reviewer).

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PR Review: https://git.openjdk.org/jdk21u-dev/pull/1949#pullrequestreview-3002535510