[jdk17u-dev] RFR: 8347712: IllegalStateException on multithreaded ZipFile access with non-UTF8 charset [v2]

[Jan Kratochvil]

On Wed, 9 Jul 2025 18:08:35 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.
>> 
>> (jdk25 already contains it), [jdk21](https://github.com/openjdk/jdk21u-dev/pull/1949), this jdk17.
>
> Jan Kratochvil has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix testcase compatibility with jdk17

Reopened as it is waiting for maintainer approvals (2).

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/3720#issuecomment-3384627375