@Test public void testBAOSSize() { MutableList<Integer> mutableArrayList = ArrayListAdapter.newList(); ByteArrayOutputStream stream1 = SerializeTestHelper.getByteArrayOutputStream(mutableArrayList); LOGGER.info("ArrayListAdapter size: {}", stream1.size()); LOGGER.info("{}", stream1); Assert.assertTrue(stream1.size() > 0); List<Integer> arrayList = new ArrayList<>(); ByteArrayOutputStream stream2 = SerializeTestHelper.getByteArrayOutputStream(arrayList); LOGGER.info("ArrayList size: {}", stream2.size()); LOGGER.info("{}", stream2); Assert.assertTrue(stream2.size() > 0); }