Thanks Peter for your help. I use JBoss 4.0.5 GA and WS 1.2. I try with saaj.jar but i always have an exception, a soap exception: Exception in thread "main" java.lang.reflect.UndeclaredThrowableException at $Proxy15.echo(Unknown Source) at echo.EchoClient.main(EchoClient.java:9) Caused by: javax.xml.soap.SOAPException: Could not transmit message at org.jboss.ws.core.soap.SOAPConnectionImpl.callInternal(SOAPConnection Impl.java:221) at org.jboss.ws.core.soap.SOAPConnectionImpl.call(SOAPConnectionImpl.java:109) at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:309) at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:185) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:163) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:149) ... 2 more This is only a part of the exception... I use wsrunclient... Thanks for help. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4026188#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...