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From "Bill Lucy (JIRA)" <...@myfaces.apache.org>
Subject [jira] [Updated] (MYFACES-4010) MyFaces 2.2 throws UnsupportedOperationException with an eager ManagedBean with ManagedProperty
Date Thu, 20 Aug 2015 14:34:46 GMT

     [ https://issues.apache.org/jira/browse/MYFACES-4010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bill Lucy updated MYFACES-4010:
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.2.9-SNAPSHOT
           Status: Resolved  (was: Patch Available)

> MyFaces 2.2 throws UnsupportedOperationException with an eager ManagedBean with ManagedProperty
> -----------------------------------------------------------------------------------------------
>
>                 Key: MYFACES-4010
>                 URL: https://issues.apache.org/jira/browse/MYFACES-4010
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.2.8
>         Environment: Tomcat, WebShere
>            Reporter: Bill Lucy
>            Assignee: Bill Lucy
>             Fix For: 2.2.9-SNAPSHOT
>
>         Attachments: myfaces-4010.patch
>
>
> This seems to be a regression from another issue, https://issues.apache.org/jira/browse/MYFACES-3116,
which was resolved in 2.0 and 2.1.
> Given a bean similar to the following:
> @ManagedBean(eager=true, name="eagerBean")
> @ApplicationScoped
> public class EagerBean implements Serializable {
> 	private static final long serialVersionUID = 1L;
> 	
> 	@ManagedProperty(value="#{message}")
> 	private MessageBean messageBean;
>     @PostConstruct
>     public void postConstruct() {
>              ...
>     }
> ...
> }
> The following exception is thrown with MyFaces 2.2.8 on Tomcat 8:
> 19-Aug-2015 12:48:32.443 SEVERE [localhost-startStop-1] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces
An error occured while initializing MyFaces: This method is not supported during startup
>  java.lang.UnsupportedOperationException: This method is not supported during startup
>         at org.apache.myfaces.context.servlet.StartupServletExternalContextImpl.getSession(StartupServletExternalContextImpl.java:187)
>         at org.apache.myfaces.view.impl.DefaultViewScopeHandler.generateViewScopeId(DefaultViewScopeHandler.java:128)
>         at org.apache.myfaces.view.ViewScopeProxyMap.getWrapped(ViewScopeProxyMap.java:76)
>         at org.apache.myfaces.view.ViewScopeProxyMap.get(ViewScopeProxyMap.java:109)
>         at org.apache.myfaces.config.ManagedBeanBuilder.getScope(ManagedBeanBuilder.java:560)
>         at org.apache.myfaces.config.ManagedBeanBuilder.getNarrowestScope(ManagedBeanBuilder.java:464)
>         at org.apache.myfaces.config.ManagedBeanBuilder.isInValidScope(ManagedBeanBuilder.java:435)
>         at org.apache.myfaces.config.ManagedBeanBuilder.initializeProperties(ManagedBeanBuilder.java:319)
>         at org.apache.myfaces.config.ManagedBeanBuilder.buildManagedBean(ManagedBeanBuilder.java:163)
>         at org.apache.myfaces.webapp.AbstractFacesInitializer._createEagerBeans(AbstractFacesInitializer.java:303)
>         at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:193)
>         at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:119)
>         at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4727)
>         at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5167)
> Note, the app does not throw this Exception in MyFaces 2.0.  The regression in 2.2 is
caused by a spec update to UIViewRoot.getViewMap(boolean): that map is now backed by the session,
which is not available during startup (which was addressed by MYFACES-3116): https://javaserverfaces.java.net/docs/2.2/javadocs/javax/faces/component/UIViewRoot.html#getViewMap%28boolean%29
> One solution is to make sure we don't call getViewMap(true) during startup; I'll attach
a patch demonstrating that route.



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