Thread createMonitorThread() {
    monitor = (ServerMonitorRunnable) wrapACC( new ServerMonitorRunnable(), AccessController.getContext(),
      Thread.currentThread().getContextClassLoader() );
    Thread monitorThread = new Thread( monitor, "cluster-" + serverId.getClusterId() + "-" + serverId.getAddress() );
    monitorThread.setDaemon( true );
    return monitorThread;
  }

  private Runnable wrapACC( final Runnable monitor, final AccessControlContext context,
                            final ClassLoader contextClassLoader ) {
    return new Runnable() {
      public void run() {
        AccessController.doPrivileged( new PrivilegedAction<Void>() {
          public Void run() {
            Thread.currentThread().setContextClassLoader( contextClassLoader );
            monitor.run();
            return null;
          }
        }, context );
      }
    };
  }