RPC запрос не отвечает. Guice + dispatch

public class IncrementCounter implements Action<IncrementCounterResult> {
    private int amount;
 
    /** For serialization only. */
    public IncrementCounter(){}
 
    public IncrementCounter(int amount){
        this.amount = amount;
    }
 
    public int getAmount() {
        return amount;
    }
}

public class IncrementCounterResult implements Result {
    private int amount;
    private int current;
 
    /** For serialization only. */
    public IncrementCounterResult(){}
 
    public IncrementCounterResult(int amount, int current){
        this.amount = amount;
        this.current = current;
    }
 
    public int getAmount() {
        return amount;
    }
 
    public int getCurrent() {
        return current;
    }
}

public class IncrementCounterHandler implements ActionHandler<IncrementCounter, IncrementCounterResult> {
    private int current = 0;
 
 
    public Class<IncrementCounter> getActionType() {
        return IncrementCounter.class;
    }
 
 
    public IncrementCounterResult execute(IncrementCounter action, ExecutionContext context) throws ActionException {
        current += action.getAmount();
        return new IncrementCounterResult(action.getAmount(), current);
    }
 
 
    public void rollback(IncrementCounter action, IncrementCounterResult result, ExecutionContext context) throws ActionException {
        current = result.getCurrent() - result.getAmount();
    }
}

public class ActionsModule extends ActionHandlerModule {
    @Override
    protected void configureHandlers() {
        bindHandler(IncrementCounter.class, IncrementCounterHandler.class);
    }
}

public class DispatcherServletModule extends ServletModule {
    @Override
    protected void configureServlets() {
        serve("/dispatch").with(GuiceStandardDispatchServlet.class);
    }
}

public class RpcCommandGuiceConfig extends GuiceServletContextListener {
 
    @Override
    protected Injector getInjector() {
//        return Guice.createInjector(new ServerDispatchModule(), new ActionsModule(), new DispatcherServletModule());
        return Guice.createInjector(new ActionsModule(), new ServerDispatchModule());
    }
}