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https://issues.apache.org/jira/browse/MYFACES-2466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leonardo Uribe resolved MYFACES-2466.
-------------------------------------
Resolution: Duplicate
Assignee: Leonardo Uribe
This is a duplicate of MYFACES-2487, which was already fixed
> NullPointerException in
> UIComponentBase.restoreDeltaSystemEventListenerClassMap() when UIViewRoot
> subscribed to PostAddToViewEvent
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: MYFACES-2466
> URL: https://issues.apache.org/jira/browse/MYFACES-2466
> Project: MyFaces Core
> Issue Type: Bug
> Components: JSR-314
> Affects Versions: 2.0.0-alpha-2
> Reporter: Jakob Korherr
> Assignee: Leonardo Uribe
> Attachments: exception-trigger.patch, myfaces-2466-ugly-fix.patch
>
>
> java.lang.NullPointerException
> at
> javax.faces.component.UIComponentBase.restoreDeltaSystemEventListenerClassMap(UIComponentBase.java:1770)
> at
> javax.faces.component.UIComponentBase.restoreState(UIComponentBase.java:1611)
> at javax.faces.component.UIViewRoot.restoreState(UIViewRoot.java:1161)
> at
> org.apache.myfaces.view.facelets.DefaultFaceletsStateManagementStrategy.restoreStateFromMap(DefaultFaceletsStateManagementStrategy.java:379)
> at
> org.apache.myfaces.view.facelets.DefaultFaceletsStateManagementStrategy.restoreView(DefaultFaceletsStateManagementStrategy.java:181)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreView(JspStateManagerImpl.java:388)
> at
> org.apache.myfaces.view.ViewDeclarationLanguageBase.restoreView(ViewDeclarationLanguageBase.java:106)
> at
> org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.restoreView(FaceletViewDeclarationLanguage.java:972)
> at
> org.apache.myfaces.application.ViewHandlerImpl.restoreView(ViewHandlerImpl.java:231)
> at
> org.apache.myfaces.lifecycle.RestoreViewExecutor.execute(RestoreViewExecutor.java:106)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:129)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:85)
> at
> javax.faces.webapp.FacesServlet._handleStandardRequest(FacesServlet.java:453)
> ... 13 more
> In this scenario savedObject is an instance of _AttachedDeltaWrapper, but
> _systemEventListenerClassMap is empty and so it returns null for
> get(entry.getKey()). Thus a NullPointerException is thrown in the following
> line (UIComponentBase.java:1770).
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