As discussed on the mailing list, see http://old.nabble.com/Proposal%3A-Change-groupId-of-myfaces-impl-ee6-to-org.apache.myfaces.core.internal-td32014798.html
>About a year ago we introduced the myfaces-impl-ee6 module, which
>includes the servlet 3.0 related stuff for myfaces-impl. This means
>the module is only needed for development reasons and will be shaded
>into myfaces-impl anyway.
>However, I noticed that some developers who are not that familiar with
>MyFaces core don't know what to do with myfaces-impl-ee6. Some even
>think this is the replacement of myfaces-impl when using java ee 6,
>which is - of course - complete nonsense.
>Thus I would like to propose to change the groupId of myfaces-impl-ee6
>from org.apache.myfaces.core to org.apache.myfaces.core.internal. IMO
>this makes it a lot more clear that this module is for internal
Affected modules: myfaces-impl-ee6 and shaded-impl.