RFR: 8373537: Migrate "test/jdk/com/sun/net/httpserver/" to null-safe "SimpleSSLContext" methods [v2]

[Daniel Fuchs]

On Tue, 16 Dec 2025 10:11:40 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

>> Migrates `test/jdk/com/sun/net/httpserver/` to null-safe `SimpleSSLContext` methods introduced in [JDK-8372661], which is a prerequisite for this change set.
>
> Volkan Yazici has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Move `SSLContext::setDefault` to static blocks

LGTM. Obviously don't integrate before [JDK-8372661](https://bugs.openjdk.org/browse/JDK-8372661).

-------------

Marked as reviewed by dfuchs (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28800#pullrequestreview-3582405543