Found the solution from Huseyin OZVEREN: Simply replace .html files to .jsp
Refer to: http://www.javablog.fr/springgwtgae-spring-security-on-google-cloud-jetty-tomcat.html#comment-165 For full description of solution -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
