It might be related to the bug[1] that mdempsky@ filed to Firefox earlier. The Firefox's VM was causing an incorrect polymorphic dispatch sometimes.
[1] https://bugzilla.mozilla.org/show_bug.cgi?id=872796 On Fri, Oct 3, 2014 at 11:52 AM, Stephen Haberman < stephen.haber...@gmail.com> wrote: > Hey, > > I know FF17 is pretty old, but do we care about breakages in it? We > noticed some client-side ClassCastExceptions in our logs that are > from a user on FF17. The app works fine in FF latest. > > The exception is odd, because, according to the de-obfuscated stack > trace, given a class hierarchy like: > > class Base > class Foo extends Base > class Bar extends Base > > We are in "new Foo()", from the Foo cstr we call the Base cstr, which > calls Base.someMethod(). Base.someMethod() calls Base.anotherMethod(). > > Now the bizarre thing is that we end up in *Bar*.anotherMethod(), and > get a class cast exception. > > E.g. somehow we jumped subclasses, and went from executing code in > Foo/Foo's base class to code that is in Bar. > > Which seems really odd. Which is why I mention it. If we don't care, > that's fine, but it made me scratch my head for awhile. > > (Our production build is using a GWT snapshot from ~April, but I also > reproduced it in our app with a GWT snapshot build from ~last week.) > > - Stephen > > -- > You received this message because you are subscribed to the Google Groups > "GWT Contributors" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to google-web-toolkit-contributors+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/google-web-toolkit-contributors/20141003135259.76c16354%40sh9 > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "GWT Contributors" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit-contributors+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit-contributors/CAN%3DyUA008%2B%3DwTYRP3gU4f4hWOBLFXEz-HUrK%3DGxiYgUtKGXNxg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
