}

    private void shutdownCommonsHttpClient() { // from Tomcat7ConfigServlet (old class)
        try {
            final Class<?> clazz = Class.forName("org.apache.commons.httpclient.MultiThreadedHttpConnectionManager");
            final Method method = clazz.getMethod("shutdownAll", (Class<?>[]) null);
            method.invoke(null, (Object[]) null);
        } catch (final ClassNotFoundException e) {
            // ignore