That is just a Warning message you can simply ignore it. It should not break any functionality of your application.
This warning is generated due to the invalid "
/META-INF/services/"file of the JAR containing this class. It is fixed in WildFly 8.0 as per the JIRA 
Thanks for the quick response, Wildfly is a new one to me, it it something I should be looking into ?
I see Wildfly is Jboss v8, i'll have a go at using that instead of 7.1.1