import org.aspectj.testing.Tester; class Super { Super(Object o){} } /** windows treats filename "nul" specially, like /dev/null on unix */ public class NulIOException2 extends Super { public static void main(String[] args) { Object nul = new Object(); // @testcase nul as identifier Object p = new NulIOException2(nul); Tester.check(null != nul, "null nul"); Tester.check(null != p, "null NulIOException2"); } NulIOException2(Object o) { super(o); } }