I get this warning /error message during mvn install phase

"Found 24 illegal transitive type dependencies in artifact" during build process of "io.apiman:apiman-gateway-osgi-servlet:bundle:1.2.4-SNAPSHOT". 

The mvn dependency:tree doesn't report any issues - https://gist.github.com/cmoulliard/5b48fbe399af8f53cc8f7fcc9c80557b

What could be the root cause ?

Regards,

Charles