code: public static void preventCache( ServletResponse response )
      {
          if ( response instanceof HttpServletResponse )
          {
              HttpServletResponse httpResponse = ( HttpServletResponse ) response;
              httpResponse.setHeader( "Pragma", "No-cache" );
              httpResponse.setHeader( "Cache-Control", "no-cache,no-store,max-age=0" );
              httpResponse.setDateHeader( "Expires", 1 );
          }
      }
docs: Set response headers to prevent caching of the response by the browser.
  
  @param response the current ServletResponse