Hi,

I've been having fun writing a page in Tapestry, but I could see a lot of 
duplication about, so I introduced generics, with various objects that get 
injected by hivemind also extending generic objects.... big mistake.

The problem is... I am now getting errors to the effect of "method doesnt exist 
methodName(path.to.BaseGenericClass);"...  This is a little concerning as I 
don't really want to have lots of duplication everywhere unless I absolutely 
have to.

Is this a known problem with Tapestry 4.0 that is fixed in 4.1?

Thanks

Gareth

Exception stack below:

Note:  DBO is my Base generic object, which an LDO object extends, which in 
turn is extended by my 'ModelObject'.





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                        org.apache.tapestry.BindingException
                
                
                
                        Exception
invoking listener method onSave of component AmendDetails: Failure
invoking listener method 'public java.lang.String
com.co.ind.gui.pages.AmendDetails.onSave()' on
[EMAIL PROTECTED]:
com.co.ind.model.globals.GlobalModelStore.update(Lcom/co/ind/model/DBO;)V
                
                
                
                        binding:
                        [EMAIL PROTECTED]
action, component=AmendDetails, methodName=onSave,
location=context:/WEB-INF/AmendDetails.page, line 10, column 50]

                
                        component:
                        [EMAIL PROTECTED]

                
                        location:
                        context:/WEB-INF/AmendDetails.page, line 10, column 50
5<page-specification>
6

7<component id="form" type="Form"/>
8

9<component id="save" type="Submit">
10      <binding name="action" value="listener:onSave"/>
11</component>
12

13<!-- PERSONAL INFO -->
14<component id="username" type="TextField">
15      <binding name="value" value="person.username"/>

                

                
                     

        
 

        
                
                        org.apache.hivemind.ApplicationRuntimeException
                
                
                
                        Failure
invoking listener method 'public java.lang.String
com.co.ind.gui.pages.AmendDetails.onSave()' on
[EMAIL PROTECTED]:
com.co.ind.model.globals.GlobalModelStore.update(Lcom/co/ind/model/DBO;)V
                
                
                
                        component:
                        [EMAIL PROTECTED]

                
                        location:
                        context:/WEB-INF/AmendDetails.page, line 5, column 21
1<?xml version="1.0"?>
2<!DOCTYPE page-specification PUBLIC
3  "-//Apache Software Foundation//Tapestry Specification 4.0//EN"
4  "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd";>
5<page-specification>
6

7<component id="form" type="Form"/>
8

9<component id="save" type="Submit">
10      <binding name="action" value="listener:onSave"/>

                

                
                     

        
 

        
                
                        java.lang.NoSuchMethodError
                
                
                
                        
com.co.ind.model.globals.GlobalModelStore.update(Lcom/co/ind/model/DBO;)V
                
                
                

                
        

                
                        Stack Trace:
                

                
                        
                                
com.extsys.ind.gui.pages.AmendDetails.onSave(Unknown Source)
                                        
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                                        
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
                                        
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
                                        
java.lang.reflect.Method.invoke(Method.java:585)
                                        
org.apache.tapestry.listener.ListenerMethodInvokerImpl.invokeTargetMethod(ListenerMethodInvokerImpl.java:214)
                                        
org.apache.tapestry.listener.ListenerMethodInvokerImpl.invokeListenerMethod(ListenerMethodInvokerImpl.java:155)
                                        
org.apache.tapestry.listener.ListenerMethodInvokerImpl.searchAndInvoke(ListenerMethodInvokerImpl.java:124)
                                        
org.apache.tapestry.listener.ListenerMethodInvokerImpl.invokeListenerMethod(ListenerMethodInvokerImpl.java:65)
                                        
org.apache.tapestry.listener.SyntheticListener.actionTriggered(SyntheticListener.java:51)
                                        
org.apache.tapestry.binding.ListenerMethodBinding.actionTriggered(ListenerMethodBinding.java:77)
                                        
org.apache.tapestry.listener.ListenerInvokerTerminator.invokeListener(ListenerInvokerTerminator.java:51)
                                        
$ListenerInvoker_10e6290fc74.invokeListener($ListenerInvoker_10e6290fc74.java)
                                        
org.apache.tapestry.form.AbstractSubmit$1.run(AbstractSubmit.java:88)
                                        
org.apache.tapestry.form.FormSupportImpl.runDeferredRunnables(FormSupportImpl.java:608)
                                        
org.apache.tapestry.form.FormSupportImpl.rewind(FormSupportImpl.java:589)
                                        
org.apache.tapestry.form.Form.renderComponent(Form.java:226)
                                        $Form_4.renderComponent($Form_4.java)
                                        
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
                                        
org.apache.tapestry.form.Form.rewind(Form.java:327)
                                        
org.apache.tapestry.engine.RequestCycle.rewindForm(RequestCycle.java:439)
                                        
org.apache.tapestry.form.Form.trigger(Form.java:338)
                                        
org.apache.tapestry.engine.DirectService.triggerComponent(DirectService.java:146)
                                        
org.apache.tapestry.engine.DirectService.service(DirectService.java:132)
                                        
$IEngineService_10e6290fccc.service($IEngineService_10e6290fccc.java)
                                        
org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:66)
                                        
org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
                                        
org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60)
                                        
$WebRequestServicer_10e6290fca8.service($WebRequestServicer_10e6290fca8.java)
                                        
$WebRequestServicer_10e6290fca4.service($WebRequestServicer_10e6290fca4.java)
                                        
org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56)
                                        
$ServletRequestServicer_10e6290fc8a.service($ServletRequestServicer_10e6290fc8a.java)
                                        
org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
                                        
$ServletRequestServicerFilter_10e6290fc86.service($ServletRequestServicerFilter_10e6290fc86.java)
                                        
$ServletRequestServicer_10e6290fc8c.service($ServletRequestServicer_10e6290fc8c.java)
                                        
org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
                                        
$ServletRequestServicerFilter_10e6290fc84.service($ServletRequestServicerFilter_10e6290fc84.java)
                                        
$ServletRequestServicer_10e6290fc8c.service($ServletRequestServicer_10e6290fc8c.java)
                                        
org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
                                        
$ServletRequestServicerFilter_10e6290fc88.service($ServletRequestServicerFilter_10e6290fc88.java)
                                        
$ServletRequestServicer_10e6290fc8c.service($ServletRequestServicer_10e6290fc8c.java)
                                        
$ServletRequestServicer_10e6290fc7e.service($ServletRequestServicer_10e6290fc7e.java)
                                        
org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:123)
                                        
org.apache.tapestry.ApplicationServlet.doPost(ApplicationServlet.java:168)
                                        
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
                                        
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
                                        
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
                                        
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
                                        
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
                                        
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
                                        
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
                                        
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
                                        
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
                                        
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
                                        
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
                                        
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
                                        
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
                                        
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
                                        
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
                                        java.lang.Thread.run(Thread.java:595)
                                        



                
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