When.java

package when;

public class When {
    static class when {
        boolean when = true;
    }

    @interface whėn {
        String value();
    }

    String test(@whėn("when") Object whėn) {
        return switch(whėn) {
            case @whėn("when") when when
                    when when . when -> "when?";
            default -> "if not now, ";
        };
    }

    public static void main(String[] args) {
        System.out.print(new When().test("hi"));
        System.out.println(new When().test(new when()));
    }
}