RFR: JDK-8307563: make most fields final in `JavacTrees`

[Chen Liang]

On Fri, 5 May 2023 22:08:15 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

> Please review a small cleanup fix to address a comment left a long time back.

src/jdk.compiler/share/classes/com/sun/tools/javac/api/JavacTrees.java line 221:

> 219:         fileManager = context.get(JavaFileManager.class);
> 220:         var task = context.get(JavacTask.class);
> 221:         javacTaskImpl = (task instanceof JavacTaskImpl taskImpl) ? taskImpl : null;

Suggestion:

        javacTaskImpl = context.get(JavacTask.class) instanceof JavacTaskImpl taskImpl
                ? taskImpl : null;

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PR Review Comment: https://git.openjdk.org/jdk/pull/13847#discussion_r1186530983