sorry I can't write English..
-- server side code A_ServiceImpl implements A_NetworkService A_ServiceImle total line : 1200line.. so.. I want.. B_ServiceImple exends A_SerivceImpl. But. rpc call. invoke Error.. [ERROR] [bakew] Invoke Error com.google.gwt.user.client.rpc.StatusCodeException: 500 <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/> <title>Error 500 INTERNAL_SERVER_ERROR</title> </head> <body><h2>HTTP ERROR: 500</h2><pre>INTERNAL_SERVER_ERROR</pre> <p>RequestURI=/bakew/windup</p><h3>Caused by:</ h3><pre>java.lang.InstantiationException at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153) at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java: 339) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 463) ~~ ~~ ~~ at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java: 192) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java: 287) at com.google.gwt.http.client.RequestBuilder $1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) ~~ ~~ ~~ impossible ??? -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.