git: openjdk/jdk-sandbox: json: Some refinement

[duke]

Changeset: f25afdab
Branch: json
Author:    Naoto Sato <naoto.sato at oracle.com>
Date:      2025-03-19 16:33:57 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/f25afdabea4aa2cd07800da648c13697d08bf4c8

Some refinement

! src/java.base/share/classes/java/util/json/JsonNumberImpl.java