karaf 4.2.0 and activemq

[Laci Gaspar]

Hi
I wanted to upgrade our karaf 4.0.5 installation with a newer one and 
I'm having trouble with the activemq bundle.

I managed to upgrade to karaf 4.1.5 with

feature:repo-add mvn:org.apache.activemq/activemq-karaf/5.14.4/xml/features
feature:install activemq

But when I try to upgrade to karaf 4.2 then I can't find an activemq 
version which works. I alwas get:
Unable to resolve activemq-client/5.15.4: missing requirement 
[activemq-client/5.15.4]

Thanks for your help.
Cheers,
Laci