Simple Webservice Without Interface

package org.superbiz.calculator;

import jakarta.ejb.Stateless;
import jakarta.jws.WebService;

@Stateless
@WebService(
        portName = "CalculatorPort",
        serviceName = "CalculatorWsService",
        targetNamespace = "http://superbiz.org/wsdl")
public class Calculator {
    public int sum(int add1, int add2) {
        return add1 + add2;
    }

    public int multiply(int mul1, int mul2) {
        return mul1 * mul2;
    }
}

<ejb-jar/>

package org.superbiz.calculator;

import org.apache.commons.io.IOUtils;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import jakarta.ejb.embeddable.EJBContainer;
import javax.naming.NamingException;
import java.net.URL;
import java.util.Properties;

import static org.junit.Assert.assertTrue;

public class CalculatorTest {
    private static EJBContainer container;

    @BeforeClass
    public static void setUp() throws Exception {
        final Properties properties = new Properties();
        properties.setProperty("openejb.embedded.remotable", "true");

        container = EJBContainer.createEJBContainer(properties);
    }

    @Before
    public void inject() throws NamingException {
        if (container != null) {
            container.getContext().bind("inject", this);
        }
    }

    @AfterClass
    public static void close() {
        if (container != null) {
            container.close();
        }
    }

    @Test
    public void wsdlExists() throws Exception {
        final URL url = new URL("http://127.0.0.1:4204/Calculator?wsdl");
        assertTrue(IOUtils.readLines(url.openStream()).size() > 0);
        assertTrue(IOUtils.readLines(url.openStream()).toString().contains("CalculatorWsService"));
    }
}

<ejb-jar/>