code: public static JasperReportUpdate readFile(final InstallFile _installFile)
      {
          final JasperReportUpdate ret = new JasperReportUpdate(_installFile);
          final JasperReportDefinition definition = ret.new JasperReportDefinition(_installFile);
          ret.addDefinition(definition);
          return ret;
      }
docs: Read the file.
  
  @param _installFile the install file
  @return JavaScriptUpdate