Parameters not added in Uri

Question

Hi, i want to build an Uri for an Webservice. I use the UriBuilder and want to add the parameters to the URI. The paramameters are saved in an MultivaluedMap.

@GET
 @PathParam("/{callUrl}/{parameters}")
   public static String buildGetUri(@PathParam("callUrl") String callUrl,
                                    @PathParam("parameters") MultivaluedMap<String, String> params)
   {
      System.out.println("building started...");

      URI uri = UriBuilder.fromUri(callUrl).buildFromMap(params);
      System.out.println("-------------------------");
      System.out.println("params.size: " + params.size());
      System.out.println("callurl: " + callUrl);
      String key = "testkey";
      String value = "testvalue";
      params.add(key, value);
      System.out.println("params.size: " + params.size());
      String sUri = uri.toString();
      System.out.println("stringGetUri: " + sUri);
      System.out.println("building finished...");
      System.out.println("-------------------------");
      return sUri;
   }

The test System.out.printlns look like this:

-------------------------
params.size: 1
callurl: /cdp/release/services/geocoding/service/geocode
params.size: 2
stringUri: /cdp/release/services/geocoding/service/geocode
building finished...
-------------------------

You can see that the Map is not empty. How can i add the parameters of the map to the URI?

Thanks in advance!