Hello, I installed following versions today to test BPEL support on JBoss - JBoss 4.0.5 jBPEM BPEL 1.1 Beta 3 jwsdp 2.0 I am running on JDK1.5 with endorsed jar files copies from JBoss's lib endorsed. I followed the tutorial for deploying Hello World BPEL on JBoss and everything went smooth with correct success messages as per the tutorial. However when I run the JUnit test for testing my service I get following exception, One thing I noticed is that the turorial says that there is client specific jndi.properties but I don't see it anywhere under examples\hello folder - <![CDATA[ 16:10:00,146 DEBUG SecurityAssociation : Using ThreadLocal: false 16:10:00,627 ERROR ServiceObjectFactory : Cannot create service javax.naming.NamingException: Cannot unmarshall service ref meta data, cause: java.io.InvalidClassException: javax.xml.namespace.QName; local class incompatible: stream classdesc serialVersionUID = 4418622981026545151, local class serialVersionUID = -9120448754896609940 at org.jboss.ws.jaxrpc.ServiceObjectFactory.getObjectInstance(ServiceObjectFactory.java:126) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) 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.jboss.naming.client.java.javaURLContextFactory$EncContextProxy.invoke(javaURLContextFactory.java:135) at $Proxy1.lookup(Unknown Source) at javax.naming.InitialContext.lookup(InitialContext.java:351) Please let me know what could be wrong here. We are thinking of switching to JBoss if our investigation works. Thank you, Meghana View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4012725#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...