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Same Package, Same Class in two Maven Projects a WAR and a JAR, classpath issue

I am having some classpath issue. I have a Web Application which is a web service. It uses JaxB and CXF. The web service has a dependecy of another JAR which is a Web Service Client. Now both the client and the service codes are generated by using wsdl2java plugin. The problem looks like this:
Parent WebService WAR
--PackageA
--ClassB
Dependency Jar
--PackageA
--ClassB
So both of them have the same package and the same class name and since these are generated by the plugin, it makes difficult to refactor one of the package so that they would not be identical.
The WebService calls the client and in client code initializes the parent classB from web service instead of the classB from web service client Jar. The only problem in this ClassB is that they have one method which takes differnet parameter, in one class B it takes, Date whereas in another classB it takes XmlGregorianCalendar. So while calling the client i am getting nosuchmethodexception.
Here is what i tried so far without luck:
1: In the Client jar i tried giving the full package and class name to initialize the ClassB
2: In the Client jar i tried wiring the classes using Spring bean and surprisingly it is still wiring the class from the webService instead of the client
3: In the web service ClassB, i tried adding the same method that takes the right parameter. This works partially but result in another exception which is not good.
Looking forward for your help. Thanks!
Solved the issue by passing extra args to wsdl2java plugin while generating classes from the wsdl as per user2880879 suggestion like this:
<extraarg>-p</extraarg>
<extraarg>http://www.example.com=mypackagename</extraarg>

I believe you are creating webservice using top down approach, means write java class first using jaxws annotations and then create wsdl using cxf maven plugin or ant, and use this wsdl to create client ?
If you are following this approach then you can provide binding file when you generate web service client code. click here to know what is binding file and how to write.
In this binding file you can specify package name you want to change for client code.

Create REST Services using Java in Eclipse

I have been looking for a few days at tutorials on this subject but either they aren't exactly what i'm looking for or I cant get them to work. I cant imagine that more people aren't confused on the subject so I will ask here.
What I would like to create is a REST service in Eclipse that I can run on my web server and "connect to" using ajax from a separate dynamic web project. All i'm looking for here at the moment is a simple hello world example of a service returning ajax working alongside a separate web project that consumes the JSON it returns.
Im hoping to get a usable user guide (or at least links to one) that will help me out and future people looking for this same thing.
I have gotten as far as this simple class (i have included Jersey Jars but I dont understand what to do from here):
public class UserRestService {
private static final Logger log = Logger.getLogger(UserRestService.class.getName());
private CreateUserService createUser;
#POST
#Path("/CreateUser/{name}/{age}")
#Consumes("text/html")
public User createUser(#PathParam("name") String name, #PathParam("age") Integer age) {
return createUser.createUser(name, age);
}
}
How do i get this class to be an accessible api service on my tomcat server? How do I setup another web project to consume it (I understand how to make an ajax call this is more a question of how do i setup the projects)? Where do servlets come in ?

Rather than copying jars, it would be better to use maven or gradle for package management. A simple pom.xml (maven) with the dependencies can help you abstract determining the compile and runtime dependencies.

Okay so the Java standard is jaxrs (https://jax-rs-spec.java.net/). You can use Jersey which is the rest implementation of jaxrs (https://jersey.java.net/).
A sample of implementing a service using eclipse, jersey and tomcat can be found here: http://www.vogella.com/articles/REST/article.html
If you are feeling like an adventure you can look at vertx.io (http://vertx.io) and my beta release of jaxrs 2.0 framework for vertx called 'vest' (https://github.com/kevinbayes/vest)
Addition:
Jersey provides examples on github of how to implement services at https://github.com/jersey/jersey/tree/master/examples

How to publish wsdl for java

I have following java class and have published a wsdl for it, my question is that is there anyway to have different webservice classes and publish a single wsdl? I mean another seperate class to this one with number of methods or I have to have a webservice class as the main class of the application to keep all the webmethod methods and generate the wsdl from that?
package com.Services;
import javax.jws.WebService;
import javax.jws.WebMethod;
#WebService(name = "Hellos", targetNamespace = "http://localhost:8081/Mywebservice2/services/Hellos")
public class Hellos {
#WebMethod
public Customer[] mycustomers() {
.....
}
#WebMethod
public String Receiver(String name){
....
}
}

Exactly, that should be the way you should design your application. you should have one consolidated java file and that should be exposed. Clients should be given multiple end-points.

WSDL correspond to your service and literally each public method corresponds to a service. You can write many classes and methods but they will not be part of your wsdl if methods are private.
If you using any IDE plugin then it asks you during service creation what all public methods you want to be exposed to outer world. So in one java project you can have as many classes or methods you want. Finally when converting your project into web service you can decide which all methods can work as end point/service and then these will be part of your WSDL.

The tool wsgen since JDK 1.6 for generate de WSDL file takes only one Service Endpoint Interface or SEI.
wsgen [options] <SEI>
You can read that:
The wsgen tool generates JAX-WS portable artifacts used in JAX-WS web services. The tool reads a web service endpoint implementation class (SEI) and generates all the required artifacts for web service deployment, and invocation
And:
Note that you do not have to generate WSDL at the development time as JAXWS runtime will automatically generate a WSDL for you when you deploy your service.
In another hand, WSDL 1.1 supports having multiple services in a single WSDL file, but these services shares types. In that case, it's prefer put all in one service.

Web service in servlet - #WebServiceRef annotation gives 500 error.

After playing around with example SOAP application Calculator from NetBeans, I began making my own app, using some third-party WSDL's as service models.
I managed to successfully create a web service classes from this WSDL, unfortunately, when I try to inject this service into my servlet (called ClientServlet), I got 500 error
"javax.servlet.ServletException: Error instantiating servlet class clients.ClientServlet".
The service interface methods are defined in Interface class MyServiceInterface. Don't ask me why it is that way - this service is made by third party.
When I comment out this annotation, and subsequent field declaration, then it works (but I can't use this service).
My code snippet:
#WebServiceRef(wsdlLocation="url/to/wsdl/of/my/service.wsdl")
public MyServiceInterface service;
Of course, I tried to do this without dependency injection, by direct creation of the instance of this class:
service1 = new MyService().getMyService();
MyService.java was created during importing a service from WSDL. GetMyService() method should return instance of the class that is implementing MyServiceInterface. But instead, Java throws me
exception at javax.xml.ws.Service.getPort(Service.java:92)
I am using Apache Tomcat 7.0 and Netbeans 7.0 IDE. What I should do now?

SOLVED - I just made it from scratch using GlassFish 3.1 server.

Advice on creating simple web service

I want to build simple SOAP web service. So far I've only worked with existing SOAP/Rest services. And now I'd like to create my own, simple one for starters.
For example create simple hello + string web service where I provide the string in request from SOAP ui or similar tool.
I have Jboss server installed already, what is the "simplest" possible way to achieve this? I realize I need interface, interfaceImpl, and a wsdl file(generated possibly).
Does anyone have some useful advice for me ? thank you

If you want something extremely straight forward, use JAX-WS and a Java first approach. Here is what a Hello world web service looks like:
#WebService
public class HelloWebService {
public String sayHello(String name) {
return "Hi" + name;
}
public static void main(String ... args) {
HelloWebService hello = new HelloWebService();
Endpoint endpoint = Endpoint.publish("http://localhost:8081/hello", hello);
}
}
Java 6 includes JAX-WS RI, an implementation of JAX-WS, so you can run this code as is and test it with SAOP-UI (the generated WSDL is available at http://localhost:8081/hello?WSDL).
JBoss supports JAX-WS through a native stack - but you can also use Apache CXF or Metro (Metro = JAX-WS RI + WSIT). Check JBossWS for more details. I suggest to start with their native stack.
See also
Getting Started with JAX-WS Web Services
Building Web Services with JAX-WS in the Java EE 6 Tutorial