GWT uses Jetty 9 so it expects servlet-api 3.1. If your project depends on a different version you need to fix that, so look at your dependency tree to see where it comes from.
mvn dependency:tree -Dverbose -Dincludes=javax.servlet:servlet-api,javax.servlet:javax.servlet-api I hope the include pattern is correct, otherwise just omit it. -- J. -- You received this message because you are subscribed to the Google Groups "GWT Users" 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 https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.