code: public static boolean showDocument(URL url) {
          return showDocumentViaDesktop(url)
              || showDocumentViaExec(url)
              || JavaWebStart.showViaWebStart(url);
      }
docs: attempt to show the given URL. will first attempt via the JNLP api, then
  will try showViaExec().
  
  @param url
  the URL
  @return true on success