### Question:
NODE implements Serializable { public UID asURI() { throw new UnsupportedOperationException(); } NODE(); abstract String getValue(); abstract NodeType getNodeType(); abstract boolean isResource(); abstract boolean isURI(); abstract boolean isBNode(); abstract boolean isLiteral(); LIT asLiteral(); ID asResource(); UID asURI(); BID asBNode();  }### Answer:
@Test(expected = UnsupportedOperationException.class) public void LIT_As_URI() { new LIT("X").asURI(); }