Can you isolate the bug and open an issue for it? If you upload a repro
case I'll take a look.

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
>
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