Change port for selenium tests

Im trying to set up selenium tests using zap, the webdriver should be firefox and the port 8080. But when it opens up the port is always a different number. This is the test below, I dont know how o open the browser under the port 8080 anfd firefox browser, the browser does actually open but nothing appears.

public class Sport {
WebDriver driver;
final static String BASE_URL = "https://web-test.com/";
final static String USERNAME = "test@hotmail.com";
final static String PASSWORD = "tables";

public Sport(WebDriver driver) {


    this.driver = driver;
    this.driver.manage().timeouts().pageLoadTimeout(5, TimeUnit.SECONDS);
    this.driver.manage().timeouts().implicitlyWait(5,TimeUnit.SECONDS);
}

public void login()throws Exception {
    driver.get(BASE_URL);
    Header header = new Header();
    header.guest_select_login();
    Pages.Login login = new Pages.Login();

    login.login_with_empty_fields();

    login.login_with_invalid_email();

    login.email_or_password_incorrect();


    login.login_open_and_close();
}

The Client zap api is working and starting it seems but the browser doesnt seem to open correctly to port 8080

public class ZapScanTest  {
static Logger log = Logger.getLogger(ZapScanTest.class.getName());
private final static String ZAP_PROXYHOST = "127.0.0.1";
private final static int ZAP_PROXYPORT = 8080;
private final static String ZAP_APIKEY = null;

// Change this to the appropriate driver for the OS, alternatives in the 
drivers directory
private final static String FIREFOX_DRIVER_PATH = "drivers/geckodriver.exe";
private final static String MEDIUM = "MEDIUM";
private final static String HIGH = "HIGH";
private ScanningProxy zapScanner;
private Spider zapSpider;
private WebDriver driver;
private Sportdec myApp;
private final static String[] policyNames = {"directory-browsing","cross- 
site-scripting","sql-injection","path-traversal","remote-file- 
inclusion","server-side-include",
"script-active-scan-rules","server-side-code-injection","external- 
redirect","crlf-injection"};
int currentScanID;


@Before
public void setup() {
    zapScanner = new ZAProxyScanner(ZAP_PROXYHOST,ZAP_PROXYPORT,ZAP_APIKEY);
    zapScanner.clear(); //Start a new session
    zapSpider = (Spider)zapScanner;
    log.info("Created client to ZAP API");
    driver = DriverFactory.createProxyDriver ("firefox",createZapProxyConfigurationForWebDriver(), FIREFOX_DRIVER_PATH);

    myApp = new Sportdec(driver);
    //myApp.registerUser(); 
}

@After
public void after() {
    driver.quit();
}

@Test
public void testSecurityVulnerabilitiesBeforeLogin()throws Exception  {
    myApp.login();
    log.info("Spidering...");
    spiderWithZap();
    log.info("Spider done.");

    setAlertAndAttackStrength();
    zapScanner.setEnablePassiveScan(true);
    scanWithZap();

    List<Alert> alerts = filterAlerts(zapScanner.getAlerts());
    logAlerts(alerts);
    assertThat(alerts.size(), equalTo(0));
}