import java.util.ArrayList; import java.util.List; class Test { public void run() { final Normalizer normalizer = new Normalizer(); final List<String> input = new ArrayList<>(); final List<String> output = new ArrayList<>(); doNormalize(input, normalizer, output); } private void doNormalize(final List<String> input, final Normalizer normalizer, final List<String> output) { for (final String s : input) { output.add(<selection>normalizer.normalize(s)</selection>); } } public static class Normalizer { public String normalize(final String s) { return s; } } }