git: openjdk/jdk-sandbox: json: Simplify new methods, provide impl at JV level

[duke]

Changeset: 0d179a9a
Branch: json
Author:    Justin Lu <justin.lu at oracle.com>
Date:      2025-08-07 14:57:35 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/0d179a9accedecc9658f7cdc87612650e60d8e8f

Simplify new methods, provide impl at JV level

! src/java.base/share/classes/java/util/json/JsonValue.java
! src/java.base/share/classes/jdk/internal/util/json/JsonArrayImpl.java
! src/java.base/share/classes/jdk/internal/util/json/JsonObjectImpl.java