code: @Test public void replaceWithJoran() throws JoranException {
    configure(ClassicTestConstants.JORAN_INPUT_PREFIX + "pattern/replace0.xml");
    StatusPrinter.print(lc);
    root.getAppender("LIST");
    String msg="And the number is 4111111111110000, expiring on 12/2010";
    logger.debug(msg);
    StringListAppender<ILoggingEvent> sla=(StringListAppender<ILoggingEvent>)root.getAppender("LIST");
    assertNotNull(sla);
    assertEquals(1,sla.strList.size());
    assertEquals("And the number is XXXX, expiring on 12/2010",sla.strList.get(0));
  }
  