Hi,

I have an embedded form component that is null inside a onSubmit method. 
It was not the case in Tap 5.1.

In .tml :
<t:form t:id="myForm" >
   ....
</t:form>

In Java page
 
@Component(id = "myForm")
private Form form;

@OnEvent(component = "myForm", value = "submit")
public void submit() {
   // form is null below !   
   ValidationTracker validationTracker = form.getDefaultTracker(); 
}

When the form is submitted, inside the submit method, form is null. 
I am using 
tapestry-core:5.2.0-20100801.103309-116

Below is the stack trace.

# com.man.testTapestry5.pages.test.Sum.submit(Sum.java:172)
# 
com.man.testTapestry5.pages.test.Sum$MethodAccess_submit_12a4dd6b537.invoke(Sum$MethodAccess_submit_12a4dd6b537.java)
# 
org.apache.tapestry5.internal.transform.BaseEventHandlerMethodInvoker.invokeEventHandlerMethod(BaseEventHandlerMethodInvoker.java:52)
# 
org.apache.tapestry5.internal.transform.OnEventWorker$4.invokeEventHandlers(OnEventWorker.java:157)
# 
org.apache.tapestry5.internal.transform.OnEventWorker$4.advise(OnEventWorker.java:136)
# 
org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:86)
# com.man.testTapestry5.pages.test.Sum.dispatchComponentEvent(Sum.java)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:942)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1132)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3000(ComponentPageElementImpl.java:72)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$7.invoke(ComponentPageElementImpl.java:1077)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$7.invoke(ComponentPageElementImpl.java:1074)
# 
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:65)
# 
org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:68)
# org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1057)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:141)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1073)
# 
org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.triggerContextEvent(InternalComponentResourcesImpl.java:287)
# org.apache.tapestry5.corelib.components.Form._$advised$onAction(Form.java:548)
# 
org.apache.tapestry5.corelib.components.Form$onAction$invocation_12a4dd6c009.invokeAdvisedMethod(Form$onAction$invocation_12a4dd6c009.java)
# 
org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:77)
# 
org.apache.tapestry5.ioc.internal.services.LoggingAdvice.advise(LoggingAdvice.java:37)
# org.apache.tapestry5.internal.transform.LogWorker$1.advise(LogWorker.java:54)
# 
org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:86)
# org.apache.tapestry5.corelib.components.Form.onAction(Form.java)
# 
org.apache.tapestry5.corelib.components.Form$MethodAccess_onAction_12a4dd6b53f.invoke(Form$MethodAccess_onAction_12a4dd6b53f.java)
# 
org.apache.tapestry5.internal.transform.BaseEventHandlerMethodInvoker.invokeEventHandlerMethod(BaseEventHandlerMethodInvoker.java:52)
# 
org.apache.tapestry5.internal.transform.OnEventWorker$4.invokeEventHandlers(OnEventWorker.java:157)
# 
org.apache.tapestry5.internal.transform.OnEventWorker$4.advise(OnEventWorker.java:136)
# 
org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:86)
# org.apache.tapestry5.corelib.components.Form.dispatchComponentEvent(Form.java)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:950)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1132)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3000(ComponentPageElementImpl.java:72)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$7.invoke(ComponentPageElementImpl.java:1077)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$7.invoke(ComponentPageElementImpl.java:1074)
# 
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:65)
# 
org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:68)
# org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1057)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:141)
# 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1073)
# 
org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:81)
# 
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
# 
$ComponentEventRequestHandler_12a4dd6b5dd.handle($ComponentEventRequestHandler_12a4dd6b5dd.java)
# org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
# 
$ComponentEventRequestHandler_12a4dd6b5dd.handle($ComponentEventRequestHandler_12a4dd6b5dd.java)
# 
org.apache.tapestry5.services.TapestryModule$39.handle(TapestryModule.java:2566)
# 
$ComponentEventRequestHandler_12a4dd6b5dd.handle($ComponentEventRequestHandler_12a4dd6b5dd.java)
# 
$ComponentEventRequestHandler_12a4dd6b507.handle($ComponentEventRequestHandler_12a4dd6b507.java)
# 
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
# 
org.apache.tapestry5.services.InitializeActivePageName.handleComponentEvent(InitializeActivePageName.java:39)
# 
$ComponentRequestHandler_12a4dd6b509.handleComponentEvent($ComponentRequestHandler_12a4dd6b509.java)
# 
$ComponentRequestHandler_12a4dd6b4ed.handleComponentEvent($ComponentRequestHandler_12a4dd6b4ed.java)
# 
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
# $Dispatcher_12a4dd6b4ef.dispatch($Dispatcher_12a4dd6b4ef.java)
# $Dispatcher_12a4dd6b4ea.dispatch($Dispatcher_12a4dd6b4ea.java)
# 
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:320)
# com.man.testTapestry5.services.AppModule$1.service(AppModule.java:105)
# $RequestFilter_12a4dd6b4e9.service($RequestFilter_12a4dd6b4e9.java)
# $RequestHandler_12a4dd6b4eb.service($RequestHandler_12a4dd6b4eb.java)
# 
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
 k trace.

Thanks in advance for any assistance !

Shing 




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