public Stream open(InputStream in) throws IOException {
        return this.delegate.open(in);
    }
@Test
    public void testParseMultipleJsons() throws Exception {
        final JsonParser parser = new JsonParser();
        final String multipleJsons = "{\"col1\": 1}{\"col1\": 2}";
        try (JsonParser.Stream stream = parser.open(toInputStream(multipleJsons))) {
            assertEquals("{\"col1\":1}", stream.next().toJson());
            assertEquals("{\"col1\":2}", stream.next().toJson());
            assertNull(stream.next());
        }
    }