jetty + Jersey works in intelliJ but fails in ShadowJar

Question

I have developed a small java application using Jersey + Jetty in Java 11. This works perfectly when running it in intelliJ but doesn't work from the Shadowjar. When I go to localhost:8080/hello no response or error.

When I print server object, I'm getting null during Shadowjar run.

What am I doing wrong??

package com.jettypoc;

import org.eclipse.jetty.server.Server;
import org.glassfish.jersey.internal.util.JdkVersion;
import org.glassfish.jersey.jetty.JettyHttpContainerFactory;
import org.glassfish.jersey.server.ResourceConfig;
import org.jboss.weld.environment.se.Weld;
import org.jboss.weld.environment.se.WeldContainer;

import java.net.URI;
import java.util.Objects;
import java.util.logging.Level;
import java.util.logging.Logger;

public class MainApp {

    public static final String BASE_URI = "http://localhost:8080/";

    public static Server startServer() {
        Server server = null;
    try {
        //WeldContainer container = weld.initialize();
        // scan packages
        final ResourceConfig config = new ResourceConfig().packages("com.jettypoc");

        //final ResourceConfig config = new ResourceConfig(MyResource.class);
        System.out.println("JDK Version: " + JdkVersion.getJdkVersion().getMajor());
        server =
                JettyHttpContainerFactory.createServer(URI.create(BASE_URI), config);
        System.out.println("Server successfully initialized, waiting for start.");
    } catch (Exception e) {
        System.out.println("Exception " +e);
    }
    return server;

    }

    public static void main(String[] args) {

        try {

            final Server server = startServer();
            if(Objects.isNull(server)) {
                System.out.println("Server null");
            } else {
                System.out.println("Server Non null");
                server.setDumpAfterStart(true);
            }

            Runtime.getRuntime().addShutdownHook(new Thread(() -> {
                try {
                    System.out.println("Shutting down the application...");
                    server.stop();
                    System.out.println("Done, exit.");
                } catch (Exception e) {
                    Logger.getLogger(MainApp.class.getName()).log(Level.SEVERE, null, e);
                }
            }));

            System.out.println(String.format("Application started.%nStop the application using CTRL+C"));

            // block and wait shut down signal, like CTRL+C
            Thread.currentThread().join();

            // alternative
            // Thread.sleep(Long.MAX_VALUE);       // sleep forever...
            // Thread.sleep(Integer.MAX_VALUE);    // sleep around 60+ years

        } catch (InterruptedException ex) {
            Logger.getLogger(MainApp.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

}

plugins {
    id 'java'
    id 'com.github.johnrengelman.shadow' version '5.2.0'
}

group 'com.jettypoc'
version '1.0-SNAPSHOT'

repositories {
    jcenter()
    mavenCentral()
}

dependencies {
    implementation 'org.glassfish.jersey.containers:jersey-container-jetty-http:3.0.2'
    implementation 'org.glassfish.jersey.inject:jersey-hk2:3.0.2'
    implementation 'jakarta.servlet:jakarta.servlet-api:5.0.0'
    implementation 'org.glassfish.jersey.media:jersey-media-json-jackson:3.0.2'
    implementation 'jakarta.activation:jakarta.activation-api:2.0.1'
    implementation group: 'log4j', name: 'log4j', version: '1.2.15'
}

test {
    useJUnitPlatform()
}