@Test
    public void testIssue2669() {
        jdbi.useExtension(ValueDao.class, dao -> dao.insert("1", null));
        jdbi.useExtension(ValueDao.class, dao -> dao.insert("2", "foo"));

        assertThat((Optional<Value>) jdbi.withExtension(ValueDao.class, dao -> dao.get("1"))).isEmpty();
        assertThat((Optional<Value>) jdbi.withExtension(ValueDao.class, dao -> dao.get("2"))).isPresent().contains(new Value("foo"));
    }
Tests that null does not auto-propagate from a database column value to a wrapped optional. See <a href="https://github.com/jdbi/jdbi/issues/2669">Issue
#2669</a>.
e2e/src/test/java/org/jdbi/v3/e2e/TestIssue2669.java