Spin up APR server socket in Java

AprTest.java

import org.apache.tomcat.jni.Address;
import org.apache.tomcat.jni.Pool;
import org.apache.tomcat.jni.Socket;
import org.apache.tomcat.jni.Library;
import org.apache.tomcat.jni.OS;

public class AprTest {

    public static void main(String... args) throws Exception {
        String hostname = null;
        if (args.length == 1)
            hostname = args[0];
    
        Library.initialize(null);
        String tcVersion = Library.versionString();
        String aprVersion = Library.aprVersionString();
        System.out.printf("libtcnative version: %s, libapr version %s%n", tcVersion, aprVersion);
        long rootPool = Pool.create(0);
        long serverSockPool = Pool.create(rootPool);
        long sockAddress = Address.info(hostname, Socket.APR_UNSPEC, 8888, 0, rootPool);
        System.out.printf("hostname: %s, family: %d, next: %d%n", Address.getInfo(sockAddress).hostname, Address.getInfo(sockAddress).family, Address.getInfo(sockAddress).next);
        int saFamily = Address.getInfo(sockAddress).family;
        long serverSock = Socket.create(saFamily,
                Socket.SOCK_STREAM,
                Socket.APR_PROTO_TCP, rootPool);
        int ret = 0;
        if (Library.APR_HAVE_IPV6 && saFamily == Socket.APR_INET6) {
            ret = Socket.optSet(serverSock, Socket.APR_IPV6_V6ONLY, 0);
            System.out.printf("setsockopt IPV6_V6ONLY status: %d%n", ret);
        }
        if (OS.IS_UNIX) {
            Socket.optSet(serverSock, Socket.APR_SO_REUSEADDR, 1);
        }
        ret = Socket.bind(serverSock, sockAddress);
        System.out.printf("socket bind status: %d%n", ret);
        ret = Socket.listen(serverSock, 10);
        System.out.printf("socket listen status: %d%n", ret);
        long socket = Socket.accept(serverSock);
    }

}