private void fixbug(Document doc){
  Element element=doc.getDocumentElement();
  if (element != null) {
    fixbug(element);
  }
}

private void fixbug ( Document doc ) { Element element = doc . getDocumentElement ( ) ; if ( element != null ) { fixbug ( element ) ; } }
this is to fix a bug generated by version 3 . 0 . 0 .
