ClassCastException in ExpressionBinding.setObject
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Key: TAPESTRY-2157
URL: https://issues.apache.org/jira/browse/TAPESTRY-2157
Project: Tapestry
Issue Type: Bug
Components: Framework
Affects Versions: 4.1.5
Environment: Win XP, Tomcat 5.5
Reporter: Paul Stanton
Priority: Critical
I've been using this page structure for quite some time and it seems after
upgrading to 4.1.5 from 4.1.1 something has regressed. It appears my BorderTab
component is caching the page or page class when it shouldn't? essentially, i
have a border component which wraps the bodyContent in a generic Form
component. Inside this form (yet still inside the Border) i have some BorderTab
components, each with a LinkSubmit component. Clicking these links navigates
through the tabs, submitting their forms (empty in the example).
Please run the attached example war file, it includes everything.
1. click tab 1, tab 2, tab 3 etc - eventually the ClassCastException will be
shown.
note: clicking tab 1 recursively without clicking the other tabs does not cause
the exception
stack trace:
$ASTChain_118168cf864.set($ASTChain_118168cf864.java)
org.apache.tapestry.services.impl.ExpressionEvaluatorImpl.write(ExpressionEvaluatorImpl.java:179)
$ExpressionEvaluator_118168cf818.write($ExpressionEvaluator_118168cf818.java)
org.apache.tapestry.binding.ExpressionBinding.setObject(ExpressionBinding.java:224)
$LinkSubmit_9.setSelected($LinkSubmit_9.java)
org.apache.tapestry.form.AbstractSubmit.handleClick(AbstractSubmit.java:69)
org.apache.tapestry.form.AbstractSubmit.rewindFormComponent(AbstractSubmit.java:63)
org.apache.tapestry.form.AbstractFormComponent.renderComponent(AbstractFormComponent.java:90)
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:538)
org.apache.tapestry.components.ElseBean.renderComponent(ElseBean.java:47)
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:107)
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:538)
org.apache.tapestry.components.IfBean.renderComponent(IfBean.java:94)
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:538)
org.apache.tapestry.form.FormSupportImpl.rewind(FormSupportImpl.java:624)
org.apache.tapestry.form.Form.renderComponent(Form.java:196)
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
org.apache.tapestry.form.Form.rewind(Form.java:269)
org.apache.tapestry.engine.RequestCycle.rewindForm(RequestCycle.java:469)
org.apache.tapestry.form.Form.trigger(Form.java:280)
org.apache.tapestry.engine.DirectService.triggerComponent(DirectService.java:166)
org.apache.tapestry.engine.DirectService.service(DirectService.java:142)
$IEngineService_118168cf76b.service($IEngineService_118168cf76b.java)
org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:72)
org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:241)
org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:54)
$WebRequestServicer_118168cf742.service($WebRequestServicer_118168cf742.java)
$WebRequestServicer_118168cf73e.service($WebRequestServicer_118168cf73e.java)
org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:61)
$ServletRequestServicer_118168cf724.service($ServletRequestServicer_118168cf724.java)
org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
$ServletRequestServicerFilter_118168cf720.service($ServletRequestServicerFilter_118168cf720.java)
$ServletRequestServicer_118168cf726.service($ServletRequestServicer_118168cf726.java)
org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
$ServletRequestServicerFilter_118168cf71e.service($ServletRequestServicerFilter_118168cf71e.java)
$ServletRequestServicer_118168cf726.service($ServletRequestServicer_118168cf726.java)
org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
$ServletRequestServicerFilter_118168cf722.service($ServletRequestServicerFilter_118168cf722.java)
$ServletRequestServicer_118168cf726.service($ServletRequestServicer_118168cf726.java)
$ServletRequestServicer_118168cf718.service($ServletRequestServicer_118168cf718.java)
org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:126)
org.apache.tapestry.ApplicationServlet.doPost(ApplicationServlet.java:171)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
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