private static final class CacheMiss {}

    private static final CacheMiss CACHE_MISS = new CacheMiss();

    private static final Object OBJECT = new Object();

    /**
     * Class passed into the constructor used to as
     * the basis for the Method map.
     */
    private final Class<?> clazz;

    /**
     * Cache of Methods, or CACHE_MISS, keyed by method
     * name and actual arguments used to find it.
     */