final class Framework {
    private static final ScopedValue<User> USER = ScopedValue.newInstance();

    static void serve(Request request) {
        User user = authenticate(request);
        ScopedValue.where(USER, user).run(() -> handle(request));
    }

    static User currentUser() {
        return USER.get();
    }
}

# [JEP 506](https://openjdk.org/jeps/506) examples

Source: https://openjdk.org/jeps/506

```java
final class Framework {
    private static final ScopedValue<User> USER = ScopedValue.newInstance();

    static void serve(Request request) {
        User user = authenticate(request);
        ScopedValue.where(USER, user).run(() -> handle(request));
    }

    static User currentUser() {
        return USER.get();
    }
}
```