i tried the export as web applets and found it didn't load.
after investigating, it will load if the panel of bar values are removed.
i suspect it was the row of bar values in the panel.
after i change x bar to a x slider and recompile, it works now.
it was not the java version or Ejs version, it was the way Ejs assemble the java codes in the applet and it happened a row of bar values made the applet cannot web load
it works now :) enjoy!