@Test
public void testEquals() {

    StringListType a = new StringListType("1", "2", "3");
    StringListType b = new StringListType("1", "2", "3");
    StringListType c = new StringListType("4", "5", "6");
    assertEquals(a, b);
    assertNotEquals(a, c);
    assertNotEquals(b, c);
}