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

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 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3979870#... 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