Please note that App Engine (without the still-beta Managed VMs) doesn't support Java 8 (and I don't think it will support anytime soon), so when GWT 2.8 comes out, you'll need to stick with Java 7 syntax.
Take a look at this issue: https://code.google.com/p/googleappengine/issues/detail?id=9537 -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
