@Test(expected = UnsupportedOperationException.class)
public void testPutAll() {

	assertTrue(mapState.contains(1L));
	long value = mapState.get(1L);
	assertEquals(5L, value);
	assertTrue(mapState.contains(2L));
	value = mapState.get(2L);
	assertEquals(5L, value);
	Map<Long, Long> nMap = new HashMap<>();
	nMap.put(1L, 7L);
	nMap.put(2L, 7L);
	mapState.putAll(nMap);
}