Proposta de refactory (VRaptor)

public Sign editSymbolForm() {

        // símbolo a ser editado já está determinado na sessão (signEditor)
        int signIndex = this.signEditionSession.getSignIndex();

        // fornece informações sobre locações e contatos disponíveis para o formulário

        // lista com grupos de locações
        List<String> locationGroups = new ArrayList<String>();
        locationGroups.add(ALL);
        // lista com todas as locações
        List<String> locations = new ArrayList<String>();
        for (Location s : Location.values()) {
            locations.add(s.toString());
        }
        // mapa de listas de locações por grupo
        Map<String, List<String>> locMap = new HashMap<String, List<String>>();
        locMap.put(ALL, locations);
        for (LocationGroup g : LocationGroup.values()) {
            locationGroups.add(g.toString());
            for (Location s : Location.values()) {
                if (s.locationGroup() == g) {
                    if (locMap.get(g.toString()) == null)
                        locMap.put(g.toString(), new ArrayList<String>());
                    locMap.get(g.toString()).add(s.toString());
                }
            }
        }

        result.include("contacts", Contact.values());
        result.include("locations", Location.values());
        result.include("locationGroups", locationGroups);
        result.include("locationsMap", locMap);
        result.include("signIndex", signIndex);
        result.include("newSign", this.signEditionSession.isNewSign());
        result.include("twoHands", true); // padrão para caso de inclusão de sinal

        // caso estejamos editando o símbolo
        if (!this.signEditionSession.isNewSign() && (this.signEditionSession.getSign().getSymbols().size() >= signIndex)) {

            // devemos passar para o fomrulário o símbolo a ser editado
            Symbol symbol = this.signEditionSession.getSign().getSymbols().get(signIndex - 1);
            this.signEditionSession.setTwoHands(symbol.getLeftHand() != null);
            result.include("symbol", symbol);
            result.include("twoHands", this.signEditionSession.isTwoHands());
        }

        return this.signEditionSession.getSign();
    }

public Sign editSymbolForm() {
        return symbolController.signEditionSession.getSign();
    }

@Resource
@Path("/sign")
public class SignSyntaxController {

...

    // prepara o formulário
    public Sign editSyntaxForm() {
        ....

        return this.signEditionSession.getSign(); // (*)
    }

    // processa o formulário preenchido
    public void editSyntax(Sign sign, String[] word, String[] literal, String[] inherence) {
       ....
    }
}

@Component
public class MeuPathResolver implements PathResolver {
   //.. implementação aqui
}