TelegramBotsApi telegramBotsApi = new TelegramBotsApi(
                    PATH_TO_CERTIFICATE_STORE,
                    CERTIFICATE_STORE_PASSWORD,
                    EXTERNAL_WEBHOOK_URL,
                    INTERNAL_WEBHOOK_URL,
                    PATH_TO_CERTIFICATE_PUBLIC_KEY
            );
telegramBotsApi.registerBot(new WebHook_());

tcp        0      0 127.0.0.1:8009          0.0.0.0:*               LISTEN      540/java            
tcp        0      0 0.0.0.0:8080            0.0.0.0:*               LISTEN      540/java            
tcp        0      0 192.168.3.88:8443       0.0.0.0:*               LISTEN      540/java            
tcp        0      0 127.0.0.1:8005          0.0.0.0:*               LISTEN      540/java      

tcp        0      0 192.168.3.88:8443       0.0.0.0:*               LISTEN      1799/java

public class Filterq implements Filter{


  public void init(FilterConfig filterConfig) {        
        this.filterConfig = filterConfig;
        
        String ss=filterConfig.getServletContext().getRealPath("/")+"WEB-INF/";
   
       org.telegram.Main.main(ss);
 }

}

public class Main {

 try {
            ApiContextInitializer.init();
            
            wh = new WebHook_();

           TelegramBotsApi telegramBotsApi =  new TelegramBotsApi(
                    PATH_TO_CERTIFICATE_STORE,
                    CERTIFICATE_STORE_PASSWORD,
                    "https://xxx.ru:8443",
                    "https://xxx.ru:8443",
                    PATH_TO_CERTIFICATE_PUBLIC_KEY
            );

            telegramBotsApi.registerBot(wh);
           
        } catch (TelegramApiException ex) {
            ex.printStackTrace();
        }

}

public class WebHook_ extends TelegramWebhookBot {

    @Override
    public BotApiMethod onWebhookUpdateReceived(Update update) {
        
        System.out.println("--- " + update.getMessage().getText());
       
        if (update.hasMessage() && update.getMessage().hasText()) {

            SendMessage sendMessage = new SendMessage();

            sendMessage.setChatId(update.getMessage().getChatId().toString());
            sendMessage.setText("Well, all information looks like noise until you break the code.");
            return sendMessage;
        }
        return null;
    }
}

java      4500       root   47u  IPv4  42901      0t0  TCP *:http-alt (LISTEN)
java      4500       root   52u  IPv4  42903      0t0  TCP localhost:8009 (LISTEN)
java      4500       root   65u  IPv4  42923      0t0  TCP localhost:8005 (LISTEN)
java      4500       root  114u  IPv4  42909      0t0  TCP xxxx.ru:8443 (LISTEN)
java      4500       root  131u  IPv4  42917      0t0  TCP xxxx.ru:48172->149.154.167.220:https (ESTABLISHED)

  @Override
    public void destroy() {        
    }

@Override
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain)
            throws IOException, ServletException {
        
        if (debug) {
            log("Filter:doFilter()");
        }
        
        doBeforeProcessing(request, response);
        
        Throwable problem = null;
        try {
            chain.doFilter(request, response);
        } catch (IOException | ServletException t) {
            // If an exception is thrown somewhere down the filter chain,
            // we still want to execute our after processing, and then
            // rethrow the problem after that.
            problem = t;
            t.printStackTrace();
        }
        
        doAfterProcessing(request, response);

        // If there was a problem, we want to rethrow it if it is
        // a known type, otherwise log it.
        if (problem != null) {
            if (problem instanceof ServletException) {
                throw (ServletException) problem;
            }
            if (problem instanceof IOException) {
                throw (IOException) problem;
            }
            sendProcessingError(problem, response);
        }
    }

 );

            telegramBotsApi.registerBot(wh);

A16-Nov-2020 17:20:36.877 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance.
16-Nov-2020 17:20:36.878 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
16-Nov-2020 17:20:36.884 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-127.0.0.1-8009"]
16-Nov-2020 17:20:36.890 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service [Catalina]
16-Nov-2020 17:20:36.900 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [bota] appears to have started a thread named [HttpServer-0] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.base@14.0.2/java.lang.Object.wait(Native Method)
 org.glassfish.grizzly.utils.DelayedExecutor$DelayedRunnable.run(DelayedExecutor.java:148)
 java.base@14.0.2/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
 java.base@14.0.2/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
 java.base@14.0.2/java.lang.Thread.run(Thread.java:832)
16-Nov-2020 17:20:36.902 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [bota] appears to have started a thread named [grizzly-nio-kernel(1) SelectorRunner] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.base@14.0.2/sun.nio.ch.EPoll.wait(Native Method)
 java.base@14.0.2/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:120)
 java.base@14.0.2/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:129)
 java.base@14.0.2/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:141)
 org.glassfish.grizzly.nio.DefaultSelectorHandler.select(DefaultSelectorHandler.java:88)
 org.glassfish.grizzly.nio.SelectorRunner.doSelect(SelectorRunner.java:308)
 org.glassfish.grizzly.nio.SelectorRunner.run(SelectorRunner.java:248)
 org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:535)
 org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:515)
 java.base@14.0.2/java.lang.Thread.run(Thread.java:832)
16-Nov-2020 17:20:36.902 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [bota] appears to have started a thread named [grizzly-nio-kernel(2) SelectorRunner] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.base@14.0.2/sun.nio.ch.EPoll.wait(Native Method)
 java.base@14.0.2/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:120)
 java.base@14.0.2/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:129)
 java.base@14.0.2/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:141)
 org.glassfish.grizzly.nio.DefaultSelectorHandler.select(DefaultSelectorHandler.java:88)
 org.glassfish.grizzly.nio.SelectorRunner.doSelect(SelectorRunner.java:308)
 org.glassfish.grizzly.nio.SelectorRunner.run(SelectorRunner.java:248)
 org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:535)
 org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:515)
 java.base@14.0.2/java.lang.Thread.run(Thread.java:832)

Both ways are supported, but I recommend long polling method.