Supplier<Integer> memoizedSupplier = Suppliers.memoize(countingSupplier);
    assertSame(memoizedSupplier, Suppliers.memoize(memoizedSupplier));
  }

  public void testMemoizeExceptionThrown() {
    memoizeExceptionThrownTest(new ThrowingSupplier());
    memoizeExceptionThrownTest(new SerializableThrowingSupplier());
  }