(republished here following the advice of Gerhard Petracek on
[email protected])
Dear all,
I have the following NPE when view pooling is activated and
CACHE_EL_EXPRESSIONS is set to alwaysRecompile :
java.lang.NullPointerException at
org.apache.myfaces.view.facelets.el.FaceletStateValueExpression.getValue(FaceletStateValueExpression.java:107)
at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:68) at
org.apache.el.parser.AstValue.getValue(AstValue.java:161) at
org.apache.el.parser.AstEmpty.getValue(AstEmpty.java:47) at
org.apache.el.parser.AstNot.getValue(AstNot.java:44) at
org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at
org.apache.myfaces.view.facelets.el.ContextAwareTagValueExpression.getValue(ContextAwareTagValueExpression.java:96)
at
javax.faces.component._DeltaStateHelper.eval(_DeltaStateHelper.java:377)
at
javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:1211)
at
javax.faces.component.UIComponentBase._isPhaseExecutable(UIComponentBase.java:2440)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1386)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at javax.faces.component.UIForm.processDecodes(UIForm.java:154) at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1401)
at
javax.faces.component.UIViewRoot._processDecodesDefault(UIViewRoot.java:1687)
at javax.faces.component.UIViewRoot.access$500(UIViewRoot.java:77) at
javax.faces.component.UIViewRoot$ApplyRequestValuesPhaseProcessor.process(UIViewRoot.java:1778)
at javax.faces.component.UIViewRoot._process(UIViewRoot.java:1653) at
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:869) at
org.apache.myfaces.lifecycle.ApplyRequestValuesExecutor.execute(ApplyRequestValuesExecutor.java:42)
at
org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:196)
at
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:143)
at
org.apache.deltaspike.jsf.impl.listener.request.DeltaSpikeLifecycleWrapper.execute(DeltaSpikeLifecycleWrapper.java:89)
at
javax.faces.lifecycle.LifecycleWrapper.execute(LifecycleWrapper.java:46)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
fr.senat.faces.filters.HibernateNoCacheFilter.doFilter(HibernateNoCacheFilter.java:123)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
fr.senat.faces.filters.HibernateSessionConversationFilter.doFilter(HibernateSessionConversationFilter.java:128)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
fr.senat.faces.filters.HibernateUserFromPrincipalFilter.doFilter(HibernateUserFromPrincipalFilter.java:43)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
fr.senat.faces.filters.SessionCreationTrackingFilter.doFilter(SessionCreationTrackingFilter.java:48)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:947) at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1009)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
This NPE occurs in the evalutation of an EL expression in a tag
component which is "cleanly" included. By clean, I mean it that the
inclusion is defined in a "normal" xhtml file, in opposition to some
dynamic inclusions I perform sometimes. This tag component is included
in my application banner. It is not rendered during login, then
displayed once the user is logged. This is done using standard
rendered="..." attribute and did not cause a bug before.
In FaceletStateValueExpression#getWrapped(ELContext context)
public ValueExpression getWrapped(ELContext context)
{
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
if (facesContext == null)
{
facesContext = FacesContext.getCurrentInstance();
}
UIViewRoot root = facesContext.getViewRoot();
FaceletState map = (FaceletState) root.getAttributes().get(
ComponentSupport.FACELET_STATE_INSTANCE);
return map.getBinding(uniqueId, key);
}
the map is defined but does not contained the keyed value. Thus the NPE
in FaceletStateValueExpression#getValue(ELContext context).
The problem completely disappears if I switch to CACHE_EL_EXPRESSIONS =
strict.
It occurs with myfaces 2.2.2 and deltaspike 0.7 and 0.8-SNAPSHOT. The
above stacktrace is obtained with 0.8-SNAPSHOT. I do not know if I it is
a MyFaces of DS bug.
Tell me what additional information I can provide...
Ludovic
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