static {
    if (!Boolean.getBoolean(GridSystemProperties.GG_JETTY_LOG_NO_OVERRIDE)) {
      String ctgrJetty = "org.eclipse.jetty"; // WARN for this category.
      String ctgrJettyUtil = "org.eclipse.jetty.util.log"; // ERROR for this...
      String ctgrJettyUtilComp = "org.eclipse.jetty.util.component"; // ...and this.

      try {
        Class<?> logCls = Class.forName("org.apache.log4j.Logger");

        Object logJetty = logCls.getMethod("getLogger", String.class).invoke(logCls, ctgrJetty);
        Object logJettyUtil =
            logCls.getMethod("getLogger", String.class).invoke(logCls, ctgrJettyUtil);
        Object logJettyUtilComp =
            logCls.getMethod("getLogger", String.class).invoke(logCls, ctgrJettyUtilComp);

        Class<?> lvlCls = Class.forName("org.apache.log4j.Level");

        Object warnLvl = lvlCls.getField("WARN").get(null);
        Object errLvl = lvlCls.getField("ERROR").get(null);

        logJetty.getClass().getMethod("setLevel", lvlCls).invoke(logJetty, warnLvl);
        logJettyUtil.getClass().getMethod("setLevel", lvlCls).invoke(logJetty, errLvl);
        logJettyUtilComp.getClass().getMethod("setLevel", lvlCls).invoke(logJetty, errLvl);
      } catch (Exception ignored) {
        // No-op.
      }
    }
  }
 private void addPrebuiltJsp(String path, String className) {
   try {
     Class clazz =
         Class.forName(
             className); // ttt2 see if possible to not use this, preferably without doing
                         // redirections like RedirectServlet
     Object obj = clazz.newInstance();
     addServlet(new ServletHolder((Servlet) obj), path);
     LOG.info("Added prebuilt JSP: " + obj.toString());
   } catch (Exception e) {
     LOG.fatal(String.format("Failed to load prebuilt JSP for %s and %s", path, className), e);
   }
 }