Seam will apply page parameters before it does the checks to see if login
redirection is required.
This is problematic for applications rely on session scope information created
in authenticator being present
e.g. using @In(scope=SESSION) currentUser;
| <page view-id="/secure/browseUsers.xhtml">
| <param name="firstResult" value="#{userBrowseQueryFactory.firstResult}"
converterId="javax.faces.Integer" />
| </page>
|
| 12:16:53,383 ERROR [DebugPageHandler] redirecting to debug page
| org.jboss.seam.RequiredException: In attribute requires non-null value:
userBrowseQueryFactory.currentUser
| at org.jboss.seam.Component.getValueToInject(Component.java:1887)
| at org.jboss.seam.Component.injectAttributes(Component.java:1336)
| at org.jboss.seam.Component.inject(Component.java:1163)
| at
org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at
org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
| at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:154)
| at
org.jboss.seam.intercept.JavaBeanInterceptor.intercept(JavaBeanInterceptor.java:89)
| at
edu.uga.ais.piac.pva.action.user.UserBrowseQueryFactory$$EnhancerByCGLIB$$5ef43164.setFirstResult(<generated>)
| 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:585)
| at
org.apache.myfaces.el.PropertyResolverImpl.setProperty(PropertyResolverImpl.java:406)
| at
org.apache.myfaces.el.PropertyResolverImpl.setValue(PropertyResolverImpl.java:173)
| at
org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:275)
| at org.jboss.seam.core.Expressions$1.setValue(Expressions.java:67)
| at org.jboss.seam.core.Pages.applyRequestParameterValues(Pages.java:608)
| at
org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:176)
| at
org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:57)
| at
org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:70)
| at
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:373)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
|
You could workaround the problem with @In(request=false,scope=SESSION)
currentUser or call Contexts.getSessionContext().get("currentUser");
My question is why would Seam need to need to apply request parameters if it is
going to redirect to login page?
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