javax.faces.event.AbortProcessingException: Method not found: com.xx.xx.xx.abc#8ff4b0.uploadedFile() - jsf-2

Question

I am getting this exception when click on button. Method is very well defined in the class, application also working fine. But still getting this exception.
Dec 21, 2011 5:50:17 PM com.sun.faces.context.ExceptionHandlerImpl log
SEVERE: JSF1073: javax.faces.event.AbortProcessingException caught during processing of PROCESS_VALIDATIONS 3 : UIComponent-ClientId=formName:file, Message=Method not found: com.xx.xx.xx.abc#8ff4b0.uploadedFile()
Dec 21, 2011 5:50:17 PM com.sun.faces.context.ExceptionHandlerImpl log
SEVERE: Method not found: com.xx.xx.xx.abc#8ff4b0.uploadedFile()
javax.faces.event.AbortProcessingException: Method not found: com.xx.xx.xx.abc#8ff4b0.uploadedFile()
at javax.faces.event.MethodExpressionValueChangeListener.processValueChange(MethodExpressionValueChangeListener.java:153)
at javax.faces.event.ValueChangeEvent.processListener(ValueChangeEvent.java:134)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:772)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:740)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1182)
at org.springframework.faces.webflow.FlowLifecycle.invokePhase(FlowLifecycle.java:121)
at org.springframework.faces.webflow.FlowLifecycle.execute(FlowLifecycle.java:70)
at org.springframework.faces.webflow.JsfView.processUserEvent(JsfView.java:114)
at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:248)
at org.springframework.webflow.engine.ViewState.resume(ViewState.java:218)
at org.springframework.webflow.engine.Flow.resume(Flow.java:545)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:259)
at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169)
at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:788)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:357)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at com.springsource.insight.collection.tcserver.request.HttpRequestOperationCollectionValve.invoke(HttpRequestOperationCollectionValve.java:60)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:379)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
any idea why this exception is being thrown?

Answer 1

The valueChangeListener method should have the following signature:
public void uploadedFile(ValueChangeEvent event) {
// ...
}
Please note the ValueChangeEvent attribute. Given the fact that your application is "working fine", you apparently don't need the valueChangeListener at all. Perhaps you're confusing (or even duplicating) it with the value attribute. It makes no sense to name the listener method "uploadedFile", this makes more sense on a property. The code snippet on your previous question also confirms this.