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https://issues.jboss.org/browse/RF-10154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12575361#comment-12575361
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Martin Kočí commented on RF-10154:
----------------------------------
This problem appears only if project stage is Development, because myfaces use
an extra component walk for debug informations collecting:
Caused by: java.lang.NullPointerException
at cz.aura.faces.richfaces.Snippet.isRendered(Snippet.java:44)
....
at
org.richfaces.component.UIDataAdaptor.visitComponents(UIDataAdaptor.java:1280)
at
org.richfaces.component.UIDataAdaptor.visitDataChildren(UIDataAdaptor.java:1307)
at
org.richfaces.component.UIDataTableBase.visitDataChildren(UIDataTableBase.java:337)
at
org.richfaces.component.AbstractExtendedDataTable.visitDataChildren(AbstractExtendedDataTable.java:138)
at org.richfaces.component.UIDataAdaptor.visitTree(UIDataAdaptor.java:1381)
....
at
org.apache.myfaces.view.facelets.tag.ui.DebugPhaseListener._doTreeVisit(DebugPhaseListener.java:310)
at
org.apache.myfaces.view.facelets.tag.ui.DebugPhaseListener.afterPhase(DebugPhaseListener.java:286)
please note the DebugPhaseListener which is involved. This is done for
RESTORE_VIEW phase too and in that case
org.richfaces.component.UIDataAdaptor.requiresRowIteration(FacesContext)
returns false.
> UIDataAdaptor vs. UIData visitTee small difference
> --------------------------------------------------
>
> Key: RF-10154
> URL: https://issues.jboss.org/browse/RF-10154
> Project: RichFaces
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: component-tables
> Affects Versions: 4.0.0.Milestone5
> Environment: RichFaces 4.0.X trunk, svn rev. 20913
> Reporter: Martin Kočí
> Assignee: Nick Belaevski
> Priority: Minor
> Fix For: 4.0.0.CR1
>
>
> <r:extendedDataTable var="zeile">
> <r:column>
> <h:outputText rendered="#{fasole.method(zeile)}"
> </r:column>
> </r:extendedDataTable>
> +
> org.richfaces.component.UIDataAdaptor.visitTree(VisitContext, VisitCallback)
> with VisitHint SKIP_UNRENDERED (in render response phase for example)
> Problem:
> org.richfaces.component.UIDataAdaptor.visitDataChildren(VisitContext,
> VisitCallback, boolean) calls visitComponents(getFacetsAndChildren(),
> visitContext, callback);-> it will visit h:outputText component and test if
> is rendered -> #{fasole.method(zeile)} but no row available -> calls
> fasole.method with null parameter and causes an unexpected NPE
> j.f.c.UIData does not visit column chidren for -1 rowIndex (null rowKey in
> RichFaces), UIData.visitTree JavaDoc says: "Take no action on non-UIColumn
> children".
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