Class App

Java/Maven-http-server/src/main/java/com/example/App.java:14–34

import java.util.logging.Logger;

public class App {
    private static final Logger LOGGER = Logger.getLogger(App.class.getName());

    public static void main(String[] args) {
        int serverCount = 3; // Number of Tomcat instances
        int basePort = 57890;

        ExecutorService executor = Executors.newFixedThreadPool(serverCount);
        List<TomcatServer> servers = new ArrayList<>();

        for (int i = 0; i < serverCount; i++) {
            int port = basePort + i;
            TomcatServer server = new TomcatServer(port);
            servers.add(server);
            executor.submit(server);
        }

        // Allow servers to run in parallel
        executor.shutdown();
    }
}

class TomcatServer implements Runnable {
    private final int port;