boolean popNamespace(String prefix){
  if (prefix.startsWith(XML_PREFIX)) {
    return false;
  }
  Stack stack;
  if ((stack=getPrefixStack(prefix)) != null) {
    stack.pop();
    return true;
  }
  return false;
}

boolean popNamespace ( String prefix ) { if ( prefix . startsWith ( XML_PREFIX ) ) { return false ; } Stack stack ; if ( ( stack = getPrefixStack ( prefix ) ) != null ) { stack . pop ( ) ; return true ; } return false ; }
undeclare the namespace that is currently pointed to by a given prefix
