On Mon, 21 Sep 2026 13:06:25 GMT, Matthias Baesken <[email protected]> wrote:

> There are some RegQueryValueEx* calls in e.g. net and nio, those can 
> potentially be simplified by using RegGetValue*.
> Benefit is that some null termination of string results might be not needed 
> any more, that is missing now.
> 
> See 
> https://learn.microsoft.com/de-de/windows/win32/api/winreg/nf-winreg-reggetvaluea
>  .
> 
> ---------
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src/java.base/windows/native/libjava/TimeZone_md.c line 72:

> 70:  * Calls RegGetValue to get the value for the specified key.
> 71:  * First tries the Unicode version, if that fails,
> 72:  * falls back to the ANSI version and converts to Unicode.

The fallback only made sense on non-Unicode Windows versions, the last of which 
was Windows ME. We should remove it, either here or in a follow up ticket. This 
method `getValueInRegistry` can be replaced with `RegGetValueW` then.

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PR Review Comment: https://git.openjdk.org/jdk/pull/32987#discussion_r4064236978

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