[Debian-med-packaging] Bug#804091: artemis: FTBFS with Java 8: FastVector.sort(Comparator) cannot implement List.sort(Comparator<? super E>)

[Andreas Tille]

Hi,

if I'm interpreting upstreams answer right this means: Patches from
experienced Java 8 developers welcome ... :-)

Kind regards

       Andreas.

On Wed, Nov 04, 2015 at 10:35:08PM +0100, Emmanuel Bourg wrote:
> Package: artemis
> Version: 16.0.0+dfsg-1
> Severity: important
> User: debian-java at lists.debian.org
> Usertags: openjdk-8-transition
> 
> Dear Maintainer,
> 
> artemis fails to build with OpenJDK 8, there is a conflict with the sort()
> method in FastVector and the newly added sort() method in the java.util.List
> interface in Java 8 (the return type isn't the same):
> 
>     /home/ebourg/packaging/artemis/uk/ac/sanger/artemis/util/FastVector.java:94: error: sort(Comparator) in FastVector cannot implement sort(Comparator<? super E>) in List
>       public FastVector sort(final Comparator cmp)
>                         ^
>       return type FastVector is not compatible with void
>       where E is a type-variable:
>         E extends Object declared in interface List
>     /home/ebourg/packaging/artemis/uk/ac/sanger/artemis/io/KeyVector.java:37: error: sort(Comparator) in FastVector cannot implement sort(Comparator<? super E>) in List
>     public class KeyVector extends FastVector
>            ^
>       return type FastVector is not compatible with void
>       where E is a type-variable:
>         E extends Object declared in interface List
> 
> 
> You can test the build with OpenJDK 8 by installing default-jdk/0.53 from experimental.
> 
> Emmanuel Bourg
> 
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