RFR: add use site null checks for fields [v8]

[Maurizio Cimadamore]

On Mon, 19 Jan 2026 20:26:36 GMT, Vicente Romero <vromero at openjdk.org> wrote:

>> generate null checks for field use sites depending on a compiler option, see also [1] which did a similar thing for method invocations
>> 
>> [1] https://github.com/openjdk/valhalla/pull/1910
>
> Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:
> 
>   minor change

Marked as reviewed by mcimadamore (Committer).

src/jdk.compiler/share/classes/com/sun/tools/javac/comp/NullChecksWriter.java line 94:

> 92: 
> 93:     Env<AttrContext> env;
> 94:     Symbol.ClassSymbol currentClass;

Style: maybe import class symbol?

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PR Review: https://git.openjdk.org/valhalla/pull/1926#pullrequestreview-3682434138
PR Review Comment: https://git.openjdk.org/valhalla/pull/1926#discussion_r2708563686