}

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testMemoizeSerializable() throws Exception {
    SerializableCountingSupplier countingSupplier = new SerializableCountingSupplier();
    Supplier<Integer> memoizedSupplier = Suppliers.memoize(countingSupplier);
    assertThat(memoizedSupplier.toString()).isEqualTo("Suppliers.memoize(CountingSupplier)");