Testing for Exceptions in the new JUnit.

AddressJUnitTest.java

/**
 *
 * @author mrbear
 */
public class AddressJUnitTest
{

    @Rule
    public ExpectedException nameMayNotBeNull = ExpectedException.none();

    @Test
    public void testWithNullpointerExceptionInJUnit()
    {
        nameMayNotBeNull.expect(NullPointerException.class);
        nameMayNotBeNull.expectMessage("the name may not be null");
        Address mrbear = new Address("Mr. Bear");
        mrbear.setName(null);
        assertThat(mrbear.getName(), not(nullValue()));
    }
}