Method apply

output/java_guava/1.4.19/Maps.java:2708–2715

(@Nullable Object key, @Nullable V value)

    }

    boolean apply(@Nullable Object key, @Nullable V value) {
      // This method is called only when the key is in the map, implying that
      // key is a K.

      @SuppressWarnings("unchecked")
      K k = (K) key;
      return predicate.apply(Maps.immutableEntry(k, value));
    }

    @Override
    public V put(K key, V value) {