I see that you added a note to "15.27.3 Type of a Lambda Expression", but a similar note is missing in "15.13.2 Type of a Method Reference". I think both should be unnecessary if you just restrict the "functional interface" definition instead.
With best regards, Tagir Valeev On Mon, Mar 2, 2020 at 11:57 AM Tagir Valeev <[email protected]> wrote: > > Hello! > > Shouldn't we update a section 9.8 Functional Interfaces? E.g.: > > A functional interface is an interface that [is not declared as sealed > and] has just one abstract method (aside from the methods of Object), > and thus represents a single function contract. > > This will also imply that the @FunctionalInterface annotation cannot > be applicable to sealed interfaces (9.6.4.9). > > With best regards, > Tagir Valeev. > > > On Fri, Feb 28, 2020 at 7:25 PM Gavin Bierman <[email protected]> > wrote: > > > > The next draft language spec for JEP 360 (Sealed Types) is available at: > > > > http://cr.openjdk.java.net/~gbierman/jep360/latest/ > > > > This version reflects the changes to the type system I mentioned [1], along > > with a number of other changes. We’d appreciate further comments on this in > > particular (along with anything else). > > > > Thanks, > > Gavin > > > > [1] > > https://mail.openjdk.java.net/pipermail/amber-spec-experts/2020-February/002018.html
