Perhaps are you have an error in a query? See http://www.zkoss.org/forum/listComment/14349
2011/4/29 Nisha <shilp...@gmail.com> > Hi All, > > Thanks for your response. I changed the exception class as suggested. > It now implements Serializable interface and now that error has gone. > But still I get this error which is kind of vague. > com.google.gwt.user.server.rpc.UnexpectedException: Service method > 'public abstract java.util.List > org.finra.aep.client.AdminService.getFirmNames() throws > org.finra.aep.shared.ServiceException' threw an unexpected exception: > java.lang.IllegalArgumentException: node to traverse cannot be null! > at > > org.gwtwidgets.server.spring.GWTRPCServiceExporter.processCall(GWTRPCServiceExporter.java: > 150) > at > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java: > 248) > at > > com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java: > 62) > at > > org.gwtwidgets.server.spring.GWTRPCServiceExporter.handleRequest(GWTRPCServiceExporter.java: > 168) > at > > org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java: > 49) > at > > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java: > 874) > at > > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java: > 808) > at > > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java: > 523) > at > > org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java: > 463) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > 362) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > 216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > 181) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > 729) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at > org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java: > 49) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at org.mortbay.jetty.Server.handle(Server.java:324) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 505) > at org.mortbay.jetty.HttpConnection > $RequestHandler.content(HttpConnection.java:843) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) > at > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java: > 395) > at org.mortbay.thread.QueuedThreadPool > $PoolThread.run(QueuedThreadPool.java:488) > > > > Please help. Any suggestions are appreciated. Thanks > > On Apr 28, 5:41 pm, Nisha <shilp...@gmail.com> wrote: > > Hi All, > > I am working on GWT+Spring+Hibernate integration. But I am getting the > > following error. Could any any one please help. > > > > java.lang.RuntimeException: > > com.google.gwt.user.client.rpc.SerializationException: Type > > 'java.lang.IllegalArgumentException' was not assignable to > > 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a > > custom field serializer.For security purposes, this type will not be > > serialized.: instance = > java.lang.IllegalArgumentException:nodetotraversecannotbenull! > > at > > > org.gwtwidgets.server.spring.GWTRPCServiceExporter.processCall(GWTRPCServic > eExporter.java: > > 150) > > at > > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServi > ceServlet.java: > > 248) > > at > > > com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(Abstract > RemoteServiceServlet.java: > > 62) > > at > > > org.gwtwidgets.server.spring.GWTRPCServiceExporter.handleRequest(GWTRPCServ > iceExporter.java: > > 168) > > at > > > org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRe > questHandlerAdapter.java: > > 49) > > at > > > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServ > let.java: > > 874) > > at > > > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServl > et.java: > > 808) > > at > > > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkSe > rvlet.java: > > 523) > > at > > > org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.ja > va: > > 463) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > > 487) > > at > > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > > 362) > > at > > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > > 216) > > at > > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > > 181) > > at > > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > > 729) > > at > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > > 405) > > at > > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > > 152) > > at > > > org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java: > > 49) > > at > > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > > 152) > > at org.mortbay.jetty.Server.handle(Server.java:324) > > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > > 505) > > at org.mortbay.jetty.HttpConnection > > $RequestHandler.content(HttpConnection.java:843) > > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) > > at > org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205) > > at > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) > > at > > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java: > > 395) > > at org.mortbay.thread.QueuedThreadPool > > $PoolThread.run(QueuedThreadPool.java:488) > > -- > 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. > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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