URIBuilder and list query params

I'm using apache URIBuilder to build a query string for a GET method of a Rest service.

@RequestMapping(value="/remote") 
    public Return getTest(Ordine ordine) throws Exception{
        ...
    }

This is the input object:

public class Ordine{    
    private List<String> codici;
    //..get...set..
}

I cannot understand how to set this string list as query params.

I tried to set param twice:

URIBuilder builder = new URIBuilder()
                .setHost("localhost")
                .setPort(8080)
                .setScheme("http")
                .setPath("/remote")
                .setParameter("codici", codicilist.get(0))
                .setParameter("codici", codicilist.get(1));

But the first param it will be overwrite from the second. Then I tried to append [] in the param name:

URIBuilder builder = new URIBuilder()
                .setHost("localhost")
                .setPort(8080)
                .setScheme("http")
                .setPath("/remote")
                .setParameter("codici[]", codicilist.get(0))
                .setParameter("codici[]", codicilist.get(1));

But it is simply sent with name "codici[]" and the first param is overwritten. Then I tried a comma separated values:

URIBuilder builder = new URIBuilder()
                .setHost("localhost")
                .setPort(8080)
                .setScheme("http")
                .setPath("/remote")
                .setParameter("codici", String.join(",",codicilist));

But if fails... how can I set a list of param?

In your expample, just use addParameter instead of setParameter. setParameter will override your parameter if it already exists. addParameter will add a new one (ignoring existing ones).