This is one of the breaking changes
JSNI disallows method references to Double, String, Boolean and its super types https://github.com/gwtproject/gwt/issues/9356 See http://www.gwtproject.org/release-notes.html#Release_Notes_2_8_0_RC1 -- 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.
