code: private static boolean isCentralRepositoryFromSuperPom( Repository repo )
      {
          if ( repo != null )
          {
              if ( "central".equals( repo.getId() ) )
              {
                  RepositoryPolicy snapshots = repo.getSnapshots();
                  if ( snapshots != null && !snapshots.isEnabled() )
                  {
                      return true;
                  }
              }
          }
          return false;
      }
docs: This method determines if the given {@link Repository} section is identical to what is defined from the super
  POM.
  
  @param repo is the {@link Repository} section to check.
  @return <code>true</code> if maven central default configuration, <code>false</code> otherwise.