}
public void testShouldReturnImmutableNullCollectionsForNullSortedMap() throws Exception {
SortedMap map = (SortedMap)Null.object(SortedMap.class, getFactory());
assertSame(Collections.EMPTY_SET, map.keySet());
assertSame(Collections.EMPTY_LIST, map.values());
assertSame(Collections.EMPTY_SET, map.entrySet());
}
public interface InterfaceWithInterfaceMethod {