@Test public void selectSupplementaryCharacter() {

    String s = new String(Character.toChars(135361));
    Document doc = Jsoup.parse("<div k" + s + "='" + s + "'>^" + s +"$/div>");
    assertEquals("div", doc.select("div[k" + s + "]").first().tagName());
    assertEquals("div", doc.select("div:containsOwn(" + s + ")").first().tagName());
}