<Swing Dev> Problems with "type swallowing" in sub-interfaces of ListModel caused by adding Generics in Java 7

[Pavel Porvatov]

Hi Walter,
>> There was an earlier article about efforts to update the JDK codebase
> to use new features of the language. Ok, Generics aren't _that_ new but
> some new classes/interfaces in Swing finally got generified in Java 7.
>> But is there a reason why javax.swing.ListModel was generified, but
> not its sub-interfaces like ComboBoxModel?
>> This "type swallowing" actually caused non-fixable compiler errors in
> Scala, where the scala-swing package can't be built anymore against the
> Java 7 code base.
>> The relevant bug ticket in Scala's trac is
> https://lampsvn.epfl.ch/trac/scala/ticket/3634
>
>> Maybe Oracle has already some bug about it? (Didn't bother to look
> since Oracle started to make more and more bug reports not visible
> anymore.)
>> Are there any ongoing efforts to add Generics to the remaining classes
> of Swing? Swing seems to be one of the last places where Generics are
> still missing in a few places ...
>
> What I know of it: the use of generics by Swing is a volunteer effort by
> Florian Brunner and his latest patch to generify ComboBoxModel has not
> been accepted yet. See the topic [PATCH] 100153: Generics: JComboBox of
> the swing-dev list (okt-nov 2010).
>
> With JDK7 declared feature complete I do wonder what will happen - is it
> going to ship with only a part of Swing implemented with generics?
> https://bugs.openjdk.java.net/show_bug.cgi?id=100153 is marked as P3
> which seems to be planned to be fixed
> (http://openjdk.java.net/projects/jdk7/
> Rampdown start: P1-P3 bugs only).
>
> https://bugs.openjdk.java.net/show_bug.cgi?id=100029 is the bug for the
> JList generics.
>
You are right: Swing generification is in progress. ComboBoxModel is a 
part of JComboBox generification 
(https://bugs.openjdk.java.net/show_bug.cgi?id=100153, the preliminary 
diff is here 
https://bugs.openjdk.java.net/attachment.cgi?id=191&action=diff 
<https://bugs.openjdk.java.net/attachment.cgi?id=191&action=diff>).

Regards, Pavel

P.S. The one additional useful link is https://swing-generics.dev.java.net/

Regards, Pavel
> Hope that helps,
> Walter Laan.