I have a simple multimodule maven project with a war ejb and ear
When i am trying to access my ejb from a java pojo class using lookup it gives me class cast exception on wildfly it runs perfectly on jboss 7..
I have checked almost all the links related to this post please do help if anyone know how to resolve this..Here is my sample code:
My ejb interface:
package interfacejar;
import javax.ejb.Local;
public interface HelloWorldRemote {
public String sayHello();
public void helloWait() ;
}
Session Bean
@Stateless
public class HelloWorld implements Serializable, HelloWorldRemote {
public String sayHello() {
// TODO Auto-generated method stub
return "hello";
}
public void helloWait(){
// TODO Auto-generated method stub
System.out.println("in ejb");
}
}
My War Interface: //As i am accessing ejb from pojo class which is in different module of my maven project so it requires to create interface here also in this module
package interfacejar;
public interface HelloWorldRemote {
public String sayHello();
public void helloWait() throws Exception;
}
My Java class
public class Testnew{
public HelloWorldRemote getProps(){
HelloWorldRemote ref=null;
try {
Properties props = new Properties();
props.setProperty("java.naming.factory.initial","org.jboss.as.naming.InitialContextFactory");
props.setProperty("java.naming.provider.url", "localhost");
props.setProperty("jboss.naming.client.ejb.context", "true");
props.setProperty("java.naming.factory.url.pkgs", "org.jboss.ejb.client.naming");
Context context = new InitialContext(props);
Object obj = context.lookup("java:global/MyEarFile/testejb-0.0.1-SNAPSHOT/HelloWorld!interfacejar.HelloWorldRemote");
ref=(HelloWorldRemote) obj;
} catch (NamingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ref;
}
public void getRemote(){
HelloWorldRemote ref=null;
try {
ref=getProps();
ref.helloWait();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Servlet that calls this class
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
this.processRequest(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
this.processRequest(request, response);
}
//java:global/MyEarFile/testejb-0.0.1-SNAPSHOT/HelloWorld!interfacejar.HelloWorldRemote*
/*@Resource(mappedName = "java:global/MyEarFile/tstwar-0.0.1-SNAPSHOT/HelloWorld!interfacejar.HelloWorldRemote")
private HelloWorldRemote helloWorldRemote;*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("in servlet");
Testnew testnew = new Testnew();
testnew.getRemote();
}
This is the error that i got
21:06:49,205 ERROR [stderr] (default task-3) java.lang.ClassCastException: interfacejar.HelloWorldRemote$$$view4 cannot be cast to interfacejar.HelloWorldRemote
21:06:49,205 ERROR [stderr] (default task-3) at com.test.Testnew.getProps(Testnew.java:43)
21:06:49,205 ERROR [stderr] (default task-3) at com.test.Testnew.getRemote(Testnew.java:59)
I found the solution
It did worked when i changed the lookup from ejb to war
Context context = new InitialContext(props);
Object obj = context.lookup("java:global/MyEarFile/AllWar-0.0.1-SNAPSHOT/HelloWorld!interfacejar.HelloWorldRemote");
ref=(HelloWorldRemote) obj;
Giving the name of the war in which the lookup is being done solved my problem... Hope it will help others too