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Posted to users@myfaces.apache.org by Hendrik Neumann <de...@hendrik-neumann.de> on 2005/04/21 20:59:00 UTC
What is an "EvaluationException"??
Hi everybody,
I'm trying to realize a site-navigation with your tree2-component. Whenever
the user clicks on a tree-item, a special navigation-action-method is called.
This methods loads an object from the database which is used to create the
new site.
But running this code:
// ---------------------------------------
Category temp =
CategoryBusinessLogic.getInstance().getCategory(selectedTreeObject[4]);
ValueBinding newBinding = application.createValueBinding("#{aCategory}");
newBinding.setValue(context, temp);
// ---------------------------------------
results from time to time in a mysterios "EvaluationException" and I have
defenetly no idea what this is, why it comes up and what I am doing wrong.
Does anybody of you guys have an idea?
This is the substrace:
javax.faces.el.EvaluationException: Expression:
#{currentUser.userSelectsCategoryOrArticle}
at
org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:164)
at
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:62)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at
org.apache.myfaces.custom.tree2.UITreeData.broadcast(UITreeData.java:116)
at
javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:110)
at
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:152)
at
org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues(LifecycleImpl.java:177)
at
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:87)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:112)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
Caused by: javax.faces.el.EvaluationException: Expression: '#{aCategory}'
at
org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:369)
at
de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Userobject.userSelectsCategoryOrArticle(Userobject.java:284)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:138)
... 35 more
Caused by: javax.servlet.jsp.el.ELException: Attempt to coerce a value of type
"de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Category" to
type
"de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Category$$EnhancerByCGLIB$$402e0ce6"
at org.apache.commons.el.Logger.logError(Logger.java:481)
at org.apache.commons.el.Logger.logError(Logger.java:498)
at org.apache.commons.el.Logger.logError(Logger.java:566)
at org.apache.commons.el.Coercions.coerceToObject(Coercions.java:799)
at org.apache.commons.el.Coercions.coerce(Coercions.java:343)
at
org.apache.myfaces.el.ValueBindingImpl.coerce(ValueBindingImpl.java:568)
at
org.apache.myfaces.el.ValueBindingImpl.setValueInScope(ValueBindingImpl.java:394)
at
org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:324)
... 41 more
javax.faces.el.EvaluationException: Expression: '#{aCategory}'
at
org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:369)
at
de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Userobject.userSelectsCategoryOrArticle(Userobject.java:284)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:138)
at
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:62)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at
org.apache.myfaces.custom.tree2.UITreeData.broadcast(UITreeData.java:116)
at
javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:110)
at
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:152)
at
org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues(LifecycleImpl.java:177)
at
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:87)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:112)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
Caused by: javax.servlet.jsp.el.ELException: Attempt to coerce a value of type
"de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Category" to
type
"de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Category$$EnhancerByCGLIB$$402e0ce6"
at org.apache.commons.el.Logger.logError(Logger.java:481)
at org.apache.commons.el.Logger.logError(Logger.java:498)
at org.apache.commons.el.Logger.logError(Logger.java:566)
at org.apache.commons.el.Coercions.coerceToObject(Coercions.java:799)
at org.apache.commons.el.Coercions.coerce(Coercions.java:343)
at
org.apache.myfaces.el.ValueBindingImpl.coerce(ValueBindingImpl.java:568)
at
org.apache.myfaces.el.ValueBindingImpl.setValueInScope(ValueBindingImpl.java:394)
at
org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:324)
... 41 more
javax.servlet.jsp.el.ELException: Attempt to coerce a value of type
"de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Category" to
type
"de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Category$$EnhancerByCGLIB$$402e0ce6"
at org.apache.commons.el.Logger.logError(Logger.java:481)
at org.apache.commons.el.Logger.logError(Logger.java:498)
at org.apache.commons.el.Logger.logError(Logger.java:566)
at org.apache.commons.el.Coercions.coerceToObject(Coercions.java:799)
at org.apache.commons.el.Coercions.coerce(Coercions.java:343)
at
org.apache.myfaces.el.ValueBindingImpl.coerce(ValueBindingImpl.java:568)
at
org.apache.myfaces.el.ValueBindingImpl.setValueInScope(ValueBindingImpl.java:394)
at
org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:324)
at
de.hendrik_neumann.projects.commercial.kandmsma.model.beans.Userobject.userSelectsCategoryOrArticle(Userobject.java:284)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:138)
at
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:62)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at
org.apache.myfaces.custom.tree2.UITreeData.broadcast(UITreeData.java:116)
at
javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:110)
at
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:152)
at
org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues(LifecycleImpl.java:177)
at
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:87)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:112)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)