// Did we find any unexpected MBeans?
List<String> additional = found;
additional.removeAll(expected);
assertTrue("Unexpected Tomcat MBeans: " + additional, additional.isEmpty());
tomcat.stop();
// There should still be some Tomcat MBeans
onames = mbeanServer.queryNames(new ObjectName("Tomcat:*"), null);
assertTrue("No Tomcat MBeans", onames.size() > 0);