and the rest of the stack : [CODE] [Loaded org.jboss.ws.core.soap.SOAPContentElement from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.SOAPHeaderElement from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.SOAPHeaderElementImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.SOAPBodyElement from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.SOAPBodyElementDoc from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.SOAPMessage from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.MessageAbstraction from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.SOAPMessageAbstraction from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.SOAPMessageImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.SOAPBody from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded javax.xml.soap.SOAPHeader from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded javax.xml.soap.SOAPFactory from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.SOAPFactoryImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.SOAPBodyImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.AttachmentPart from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.attachment.CIDGenerator from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.attachment.AttachmentPartImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.MessageFactory from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.MessageFactoryImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.SOAPFault from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded javax.mail.MessagingException from file:/D:/EJB3/jboss-5.0.0.CR1/server/default/lib/mail.jar] [Loaded javax.mail.internet.ParseException from file:/D:/EJB3/jboss-5.0.0.CR1/server/default/lib/mail.jar] [Loaded org.jboss.ws.core.soap.EnvelopeBuilder from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.EnvelopeBuilderDOM from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.FastInfosetEnvelopeBuilder from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.jaxrpc.SOAPBindingJAXRPC from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.jaxrpc.client.PortProxy from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.rpc.Stub from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-jaxrpc.jar] [Loaded java.lang.reflect.Proxy from shared objects file] [Loaded sun.misc.ProxyGenerator from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$ConstantPool from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$ProxyMethod from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$MethodInfo from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$ConstantPool$Entry from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$ConstantPool$ValueEntry from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded java.io.DataOutput from shared objects file] [Loaded java.io.DataOutputStream from shared objects file] [Loaded sun.misc.ProxyGenerator$ConstantPool$IndirectEntry from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$FieldInfo from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$ExceptionTableEntry from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded sun.misc.ProxyGenerator$PrimitiveTypeInfo from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded $Proxy0 from sun.misc.Launcher$AppClassLoader] [Loaded java.lang.reflect.UndeclaredThrowableException from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.binding.SerializationContext from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.jaxrpc.SerializationContextJAXRPC from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.ws.handler.MessageContext$Scope from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.MessageContextAssociation from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.utils.ThreadLocalAssociation from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.CommonMessageContext$ScopedProperty from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.DirectionHolder from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.DirectionHolder$Direction from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.EndpointInvocation from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.utils.HolderUtils from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.ws.Holder from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.extensions.xop.XOPContext from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.xb.binding.sunday.xop.XOPMarshaller from file:/D:/EJB3/jboss-5.0.0.CR1/client/jboss-xml-binding.jar] [Loaded javax.xml.soap.SOAPEnvelope from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.SOAPEnvelopeImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.attachment.MultipartRelatedEncoder from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.attachment.MultipartRelatedXOPEncoder from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded org.jboss.ws.core.soap.attachment.MultipartRelatedSwAEncoder from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.SOAPPart from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.SOAPPartImpl from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] [Loaded javax.xml.soap.MimeHeaders from D:\EJB3\jre1.6.0_07\lib\rt.jar] [Loaded org.jboss.ws.core.soap.SOAPDocument from file:/D:/EJB3/jboss-5.0.0.CR1/client/jbossws-native-core.jar] Exception in thread "main" java.lang.reflect.UndeclaredThrowableException at $Proxy0.validerCarteCredit(Unknown Source) at com.eni.dvtejb.client.ServiceClientStandalone.main(ServiceClientStandalone.java:36) Caused by: java.rmi.RemoteException: Call invocation failed; nested exception is: java.lang.UnsupportedOperationException: setProperty must be overridden by all subclasses of SOAPMessage at org.jboss.ws.core.jaxrpc.client.CallImpl.invokeInternal(CallImpl.java:536) at org.jboss.ws.core.jaxrpc.client.CallImpl.invoke(CallImpl.java:277) at org.jboss.ws.core.jaxrpc.client.PortProxy.invoke(PortProxy.java:156) ... 2 more Caused by: java.lang.UnsupportedOperationException: setProperty must be overridden by all subclasses of SOAPMessage at javax.xml.soap.SOAPMessage.setProperty(Unknown Source) at org.jboss.ws.core.soap.SOAPMessageImpl.(SOAPMessageImpl.java:84) at org.jboss.ws.core.soap.MessageFactoryImpl.createMessage(MessageFactoryImpl.java:171) at org.jboss.ws.core.CommonSOAP11Binding.createMessage(CommonSOAP11Binding.java:59) at org.jboss.ws.core.CommonSOAPBinding.bindRequestMessage(CommonSOAPBinding.java:158) at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:292) at org.jboss.ws.core.jaxrpc.client.CallImpl.invokeInternal(CallImpl.java:517) ... 4 more [Loaded java.util.IdentityHashMap$KeySet from shared objects file] [Loaded java.util.IdentityHashMap$IdentityHashMapIterator from shared objects file] [Loaded java.util.IdentityHashMap$KeyIterator from shared objects file] [Loaded java.io.DeleteOnExitHook from shared objects file] [Loaded java.util.LinkedHashSet from shared objects file] [/CODE] Thanks again for helping me. 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