@SuppressWarnings("unchecked")
      @Override
      public Enumeration<String> getParameterNames() {
        return new Enumeration<String>() {
          private Enumeration<String> rawIterator =
                  rawRequest.getParameterNames();
          @Override
          public boolean hasMoreElements() {
            return rawIterator.hasMoreElements();
          }

          @Override
          public String nextElement() {
            return HtmlQuoting.quoteHtmlChars(rawIterator.nextElement());
          }
        };
      }
Return the set of parameter names, quoting each name.
common/src/java/org/apache/hive/http/HttpServer.java