* @return Set
         */
        public Set<? extends Enum<?>> getFuga() {
            return null;
        }

        /**
         * @param date
         */
        public void setHege(final Map<? extends String, ? extends Number> date) {
        }

    }

    /**
     * @param <T>
     */
    public static class Foo<T> {

        /** */
        public List<T> list;