[jdk17u-dev] RFR: 8270083: -Wnonnull errors happen with GCC 11.1.1

[Sergey Bylokhov]

On Tue, 28 Oct 2025 20:42:12 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [68b6e11e](https://github.com/openjdk/jdk/commit/68b6e11e481349e40014aa4593a53ae2ea74aedc) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Yasumasa Suenaga on 10 Jul 2021 and was reviewed by Erik Joelsson, Dean Long and Kim Barrett.
> 
> Thanks!

This patch, along with several similar ones, was removed from the mainline as part of [JDK-8291895](https://bugs.openjdk.org/browse/JDK-8291895). That issue also references other related tickets titled “Undefined Behaviour in class XX,” which as of now remain unfixed in 17u. Therefore, I think this patch should be merged first, as it will also simplify future backports related to Xcode 16+.

@shipilev @theRealAph please take a look

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/4132#issuecomment-3459388847