Check out Maven from
MNG-6114. Run Core ITs, see MNG-5771 fail. (Compare uploaded log files and settings). MNG-6114 orders all settings elements from global to local. I.e., repos from global settings come first. Here is the bug: One expects Maven to traverse all available repos to download artifacts, but Maven stops here with the first one. W/o MNG-6114 it works accidently because Central override was servered by a mirror.