[jboss-user] [Beginners Corner] - Stateful SessionBeans

[Frankster]

Hello!

I´m a totaly newbie in programming with EJB3.0
So I tried a very easy tutorial for Stateful SessionBeans.
I always get an "Exception in thread "main" java.lang.NoClassDefFoundError: Lorg/jboss/invocation/Invoker"

 
  | Exception in thread "main" java.lang.NoClassDefFoundError: Lorg/jboss/invocation/Invoker;
  | 	at java.lang.Class.getDeclaredFields0(Native Method)
  | 	at java.lang.Class.privateGetDeclaredFields(Unknown Source)
  | 	at java.lang.Class.getDeclaredField(Unknown Source)
  | 	at java.io.ObjectStreamClass.getDeclaredSUID(Unknown Source)
  | 	at java.io.ObjectStreamClass.access$700(Unknown Source)
  | 	at java.io.ObjectStreamClass$2.run(Unknown Source)
  | 	at java.security.AccessController.doPrivileged(Native Method)
  | 	at java.io.ObjectStreamClass.<init>(Unknown Source)
  | 	at java.io.ObjectStreamClass.lookup(Unknown Source)
  | 	at java.io.ObjectStreamClass.initNonProxy(Unknown Source)
  | 	at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
  | 	at java.io.ObjectInputStream.readClassDesc(Unknown Source)
  | 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject0(Unknown Source)
  | 	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
  | 	at java.io.ObjectInputStream.readSerialData(Unknown Source)
  | 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject0(Unknown Source)
  | 	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
  | 	at java.io.ObjectInputStream.readSerialData(Unknown Source)
  | 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject0(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject(Unknown Source)
  | 	at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:107)
  | 	at java.io.ObjectInputStream.readExternalData(Unknown Source)
  | 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject0(Unknown Source)
  | 	at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
  | 	at java.io.ObjectInputStream.readSerialData(Unknown Source)
  | 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject0(Unknown Source)
  | 	at java.io.ObjectInputStream.readObject(Unknown Source)
  | 	at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128)
  | 	at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66)
  | 	at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279)
  | 	at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
  | 	at org.jboss.remoting.Client.invoke(Client.java:525)
  | 	at org.jboss.remoting.Client.invoke(Client.java:488)
  | 	at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:41)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)
  | 	at org.jboss.aspects.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:34)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)
  | 	at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:46)
  | 	at $Proxy0.createProxy(Unknown Source)
  | 	at org.jboss.ejb3.JndiProxyFactory.getObjectInstance(JndiProxyFactory.java:52)
  | 	at javax.naming.spi.NamingManager.getObjectInstance(Unknown Source)
  | 	at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1125)
  | 	at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1142)
  | 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:705)
  | 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
  | 	at javax.naming.InitialContext.lookup(Unknown Source)
  | 	at client.calcClient.main(calcClient.java:16)
  | 

Here are my codes:

CalculatorSession

  | package calculator;
  | import java.io.Serializable;
  | 
  | @javax.ejb.Stateful
  | public class CalculatorSession implements ICalculator, Serializable {
  | 	static final long serialVersionUID = 7422574264557894633L;
  | 	public int last;
  | 	
  | 	public CalculatorSession(){
  | 		last = 0;
  | 	}
  | 	public int add(int a, int b) {
  | 		last = a+b;
  | 		return a+b;
  | 	}
  | 
  | 	public int last() {
  | 		return last;
  | 	}
  | }
  | 

ICalculator

  | package calculator;
  | 
  | @javax.ejb.Remote
  | public interface ICalculator{
  | 	public int add(int a, int b);
  | 	
  | 	public int last();
  | }
  | 

calcClient

  | package client;
  | 
  | import java.util.Properties;
  | import javax.naming.InitialContext;
  | import calculator.*;
  | 
  | public class calcClient {
  | 
  | 	public static void main(String[] args) throws Exception {
  | 		
  | 		Properties p = new Properties();
  | 		p.put("java.naming.factory.inition","org.jnp.interfaces.NamingContextFactory");
  | 		p.put("java.naming.factory.url.pkgs","org.jboss.naming:org.jnp.interfaces");
  | 		p.put("java.naming.provider.url","jnp://localhost:1099");
  | 		InitialContext ctx = new InitialContext(p);
  | 		ICalculator calc = (ICalculator) ctx.lookup("CalculatorSession/remote");
  | 		
  | 		System.out.println("2 + 1 = " + calc.add(2,1));
  | 		System.out.println("LAST: " + calc.last());
  | 		
  | 		System.out.println("2 + 4 = " + calc.add(2,4));
  | 		System.out.println("LAST: " + calc.last());
  | 	}
  | }
  | 

I installed:
JBOSS AS 4.0.4
JBossIDE 2.0.0.Beta2
Eclipse 3.2.1

Many Thanks
Frankster

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