Maven for generating the web service client stub classes.

POM.xaml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.uttesh</groupId>
    <artifactId>wsclient</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
    </properties>
    
    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>jaxws-maven-plugin</artifactId>
                <version>1.9</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>wsimport</goal>
                        </goals>
                        <phase>generate-sources</phase>
                    </execution>
                </executions>
                <configuration>
                    
                    <!-- Keep generated files --> 
                    <keep>true</keep> 
                    <!-- Package name --> 
                    <packageName>org.example.echo.service.skeleton</packageName> 
                    <!-- generated source files destination--> 
                    <sourceDestDir>src/main/java</sourceDestDir> 
                    
                    <wsdlUrls>
                        <wsdlUrl>
                            https://ec.europa.eu/taxation_customs/tin/checkTinService.wsdl
                        </wsdlUrl>
                    </wsdlUrls>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

WsTest.java

package com.uttesh.wsclient;

import javax.xml.datatype.XMLGregorianCalendar;
import javax.xml.ws.Holder;
import org.example.echo.service.skeleton.CheckTinPortType;
import org.example.echo.service.skeleton.CheckTinService;

/**
 *
 * @author Uttesh Kumar T.H.
 */
public class WsTest {

    public static void main(String[] args) {
        try {
            CheckTinService checkTinService = new CheckTinService();
            CheckTinPortType portType = checkTinService.getPort(CheckTinPortType.class);
            Holder<String> code = new Holder<String>("DE");
            Holder<String> tin = new Holder<String>("12346789");
            Holder<XMLGregorianCalendar> requestDate = new Holder<>();
            Holder<Boolean> validStructure = new Holder<>();
            Holder<Boolean> validSyntax = new Holder<>();
            portType.checkTin(code, tin, requestDate, validStructure, validSyntax);

            System.out.println("requestDate : " + requestDate.value);
            System.out.println("validStructure : " + validStructure.value);
            System.out.println("validSyntax : " + validSyntax.value);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}