Avoid changing the special characters in URI writing

I'm using the google maps API in my project but I'm having a little problem.

To mount the URL I'm using a URI that concatenates with buildUpon so with the example below.

Uri uriBase = Uri.parse(urlBase).buildUpon()
                    .appendQueryParameter(language, "pt-BR")
                    .appendQueryParameter(units, "metric")
                    .appendQueryParameter(origins, "Washington,DC")
                    .appendQueryParameter(destinations, "New+York+City,NY")
                    .appendQueryParameter(key, GOOGLE_API_KEY)
                    .build();

So long, the problem is that with special characters like "," and "". They are converted to their form url encoding getting something like% 2C or% 2B, which may end up preventing Google maps from identifying the address returning empty json, I wonder if there is a way to prevent this conversion.