code: private static void configureWagon(Wagon wagon, String repositoryId, Settings settings, PlexusContainer container, Log log)
              throws WagonConfigurationException {
          log.debug(" configureWagon ");
  
          //config log
          configureLog(wagon, log);
  
          configureScpWagonIfRequired(wagon, log);
  
          // MSITE-25: Make sure that the server settings are inserted
          for (Server server : settings.getServers()) {
              String id = server.getId();
  
              log.debug("configureWagon server " + id);
  
              if (id != null && id.equals(repositoryId) && (server.getConfiguration() != null)) {
                  final PlexusConfiguration plexusConf =
                          new XmlPlexusConfiguration((Xpp3Dom) server.getConfiguration());
  
                  ComponentConfigurator componentConfigurator = null;
                  try {
                      componentConfigurator = (ComponentConfigurator) container.lookup(ComponentConfigurator.ROLE);
                      componentConfigurator.configureComponent(wagon, plexusConf, container.getContainerRealm());
                  } catch (final ComponentLookupException e) {
                      throw new WagonConfigurationException(repositoryId, "Unable to lookup wagon configurator."
                              + " Wagon configuration cannot be applied.", e);
                  } catch (ComponentConfigurationException e) {
                      throw new WagonConfigurationException(repositoryId, "Unable to apply wagon configuration.", e);
                  } finally {
                      if (componentConfigurator != null) {
                          try {
                              container.release(componentConfigurator);
                          } catch (ComponentLifecycleException e) {
                              log.error("Problem releasing configurator - ignoring: " + e.getMessage());
                          }
                      }
                  }
              }
          }
      }
docs: Configure the Wagon with the information from serverConfigurationMap ( which comes from settings.xml )
  
  @param wagon
  @param repositoryId
  @param settings
  @param container
  @param log
  @throws WagonConfigurationException
  @todo Remove when {@link WagonManager#getWagon(Repository) is available}. It's available in Maven 2.0.5.