in uber-core-oauth-client-adapter/src/main/java/com/uber/sdk/core/auth/OAuth2Credentials.java [230:237]
public String getAuthorizationUrl() throws UnsupportedEncodingException {
String authorizationCodeRequestUrl =
authorizationCodeFlow.newAuthorizationUrl().setScopes(scopes).build();
if (redirectUri != null) {
authorizationCodeRequestUrl += "&redirect_uri=" + URLEncoder.encode(redirectUri, "UTF-8");
}
return authorizationCodeRequestUrl;
}