*
   * <p>See {@link #checkArgument(boolean, String, Object...)} for details.
   *
   * @since 20.0 (varargs overload since 2.0)
   */
  public static void checkArgument(
      boolean expression,
      String errorMessageTemplate,
      @Nullable Object p1,
      @Nullable Object p2,
      @Nullable Object p3,
      @Nullable Object p4) {
    if (!expression) {
      throw new IllegalArgumentException(

   */
  public static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
      Table<R, C, V> unmodifiableTable(Table<? extends R, ? extends C, ? extends V> table) {
    return new UnmodifiableTable<>(table);
  }

  private static class UnmodifiableTable<
          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>

        Object result = data.getDataMap().get("entities");
        assertNotNull(result);
        assertTrue(result instanceof List);
        @SuppressWarnings("unchecked")
        List<Map<String, Object>> resultList = (List<Map<String, Object>>) result;
        assertEquals(2, resultList.size());

        Map<String, Object> map1 = resultList.get(0);

    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder().removalListener(listener));
    assertThat(listener.isEmpty()).isTrue();

    Object one = new Object();
    Object two = new Object();
    Object three = new Object();
    Object four = new Object();
    Object five = new Object();
    Object six = new Object();

    map.put(one, two);
    map.remove(one);

    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder().removalListener(listener));
    assertThat(listener.isEmpty()).isTrue();

    Object one = new Object();
    Object two = new Object();
    Object three = new Object();
    Object four = new Object();
    Object five = new Object();
    Object six = new Object();

    map.put(one, two);
    map.remove(one);

    boolean first = true;
    for (Object o : components) {
      if (!first) {
        builder.append(',');
      }
      builder.append(o);
      first = false;
    }
    return builder.append(')').toString();
  }

  /**
   * @see Predicates#equalTo(Object)
   */
  private static final class IsEqualToPredicate
      implements Predicate<@Nullable Object>, Serializable {

      MapMakerInternalMap<Object, Object, ?, ?> map = makeMap(maker);
      Segment<Object, Object, ?, ?> segment = map.segments[0];

      Object keyOne = new Object();
      Object valueOne = new Object();
      int hashOne = map.hash(keyOne);
      InternalEntry<Object, Object, ?> entryOne = segment.newEntryForTesting(keyOne, hashOne, null);
      WeakValueReference<Object, Object, ?> valueRefOne =

      MapMakerInternalMap<Object, Object, ?, ?> map = makeMap(maker);
      Segment<Object, Object, ?, ?> segment = map.segments[0];

      Object keyOne = new Object();
      Object valueOne = new Object();
      int hashOne = map.hash(keyOne);
      InternalEntry<Object, Object, ?> entryOne = segment.newEntryForTesting(keyOne, hashOne, null);
      WeakValueReference<Object, Object, ?> valueRefOne =

    Object one = new Object();
    Object two = new Object();
    CacheLoader<Object, Object> loader =
        new CacheLoader<Object, Object>() {
          @Override
          public Object load(Object key) {
            return one;
          }

          @Override
          public ListenableFuture<Object> reload(Object key, Object oldValue) {
            return immediateFuture(two);

     */
    @SuppressWarnings("unchecked")
    public static Map<String, Object> getMap(final Map<String, Object> map, final String key) {
        final Object value = map.get(key);
        if (value instanceof Map) {
            return (Map<String, Object>) value;
        }
        return null;
    }

    /**