### Question:
SequenceItem extends Item { @Override String getValue () { throw new ExecutionException ("symbol '%s' is a structure and has no value", mName); } SequenceItem(String name, Item parent);   }### Answer:
@Test public void testGetValue () { try { new SequenceItem (SEQUENCE_NAME, null).getValue (); fail ("no exception"); } catch (ExecutionException ee) { } }