RFR: 8378631: Update Zlib Data Compression Library to Version 1.3.2

[Alan Bateman]

On Wed, 25 Feb 2026 12:56:37 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

> Can I please get a review of this change which upgrades JDK's in-tree zlib code from 1.3.1 to the recently released zlib 1.3.2 version?
> 
> As noted in https://bugs.openjdk.org/browse/JDK-8378631, then changes between the upstream zlib 1.3.1 and 1.3.2 are available here https://github.com/madler/zlib/compare/v1.3.1...v1.3.2.

@jaikiran No changes from upstream, right? (ignoring the make file update to compile with -DHAVE_STDARG_H=1). Also would be possible to update the PR description to say what testing has been done as the defaults only use the in-tree version on Windows.

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PR Comment: https://git.openjdk.org/jdk/pull/29916#issuecomment-3959256218