How to download a file by clicking a link in a webpage through selenium+java in docker container

Question

I have one selenium + java scenario which clicks a link in the webpage and that would download the file to the directory.

I have done few things which working fine in my local MAC though I need this only for this particular scenario. However it does not download the file in the jenkins though its clicks the link( i.e docker container linux). I read somewhere that we can start the xvfb programmatically through java and I can start xvfb for this particular scenario only and once scenario finished I can stop xvfb. https://github.com/mike10004/xvfb-manager-java/blob/master/README.md but not much info about how to do exactly. However I can do Xvfb "$DISPLAY" >>/dev/null 2>&1 & apt-get install xvfb through shell script but that would be like xvfb would be started for all scenarios which would be my last option.

  private static HashMap<String, Object> setDownloadPreferences() {
    HashMap<String, Object> prefs = new HashMap<>();
    prefs.put("download.default_directory", System.getProperty("user.dir") + File.separator +"target");
    prefs.put("safebrowsing.enabled", false);
    prefs.put("download.prompt_for_download", false);
    prefs.put("profile.default_content_settings.popups", false);
    prefs.put("credentials_enable_service", false);
    return prefs;
  }

@SneakyThrows
  private static void enableDriverSecurityForFileDownloadInHeadlessMode(ChromeDriverService driverService, WebDriver driver) {
    Map<String, Object> commandParams = new HashMap<>();
    commandParams.put("cmd", "Page.setDownloadBehavior");

    Map<String, String> params = new HashMap<>();
    params.put("behavior", "allow");
    params.put("downloadPath", System.getProperty("user.dir") + File.separator +"target");
    commandParams.put("params", params);

    ObjectMapper objectMapper = new ObjectMapper();
    String body = objectMapper.writeValueAsString(commandParams);

    SessionId session = ((ChromeDriver) driver).getSessionId();
    String url = driverService.getUrl().toString() + "/session/" + session + "/chromium/send_command";
    RestAssured.given().contentType("application/json").body(body).when().post(url);
  }

ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.setExperimentalOption("prefs", setDownloadPreferences());
WebDriver driver;
    
ChromeDriverService driverService = ChromeDriverService.createDefaultService();
driver = new ChromeDriver(driverService, chromeOptions);
enableDriverSecurityForFileDownloadInHeadlessMode(driverService, driver);