void reportElements(DefaultMutableTreeNode out) {
   if (elements != null) {
     elements.reportIndented(out, null);
   }
 }
 /** Write information about all the elements to the report */
 void reportElements(IndentingPrintWriter out) {
   if (elements != null) {
     elements.reportIndented(out, null);
     out.println();
   }
 }