private static boolean _stemAdd(String stem, String extn) {
private static boolean _stemAdd(List tokens) {
  private static boolean _stemAdd(String stem, String extn) {    boolean rv = false;    // TODO Bah.  I have to do the interpolation for the config file.    if (stem.equals("Grouper.NS_ROOT")) {      stem = Grouper.NS_ROOT;    }    GrouperGroup g = GrouperGroup.create(s, stem, extn, Grouper.NS_TYPE);    if (g != null) {      _verbose("Added stem: " + g);      rv = true;    } else {      System.err.println(        "Failed to add stem=`" + stem + ", extn=`" + extn + "'"      );    }    return rv;  }