@Override public void installCoreTypes() throws InvalidConfigException {
  List<Extension> extensions=getCoreTypes();
  for (  Extension ext : extensions) {
    install(ext.getUrl());
  }
}

@ Override public void installCoreTypes ( ) throws InvalidConfigException { List < Extension > extensions = getCoreTypes ( ) ; for ( Extension ext : extensions ) { install ( ext . getUrl ( ) ) ; } }
install core extensions ( that the ipt is configured to use ) .
