Jobj.java

...

    public static final class Jobj extends Json {
        private final Map<String, Json> members;

        public Jobj(final Map<String, Json> members) {
            this.members = members;
        }

        public Map<String, Json> getMembers() {
            return members;
        }

        @Override
        public <T> T match(final Function<Jseq, T> a,
                           final Function<Jobj, T> b,
                           final Function<Jnumber, T> c,
                           final Function<Jstring, T> d,
                           final Function<Jboolean, T> e,
                           final Function<JNull, T> f) {
            return b.apply(this);
        }
}
...