[richfaces-issues] [JBoss JIRA] Commented: (RF-7524) rich:columns throws Exception when value is null

[Markus Merder (JIRA)]

    [ https://jira.jboss.org/jira/browse/RF-7524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12476168#action_12476168 ] 

Markus Merder commented on RF-7524:
-----------------------------------

I looked into the source: The exception was already thrown in 3.3.0.GA but back then it was catched in org.richfaces.taglib.ColumnsHandler.prepare and not handled. This changed now and is pretty annoying because of the stacktraces in log.

> rich:columns throws Exception when value is null
> ------------------------------------------------
>
>                 Key: RF-7524
>                 URL: https://jira.jboss.org/jira/browse/RF-7524
>             Project: RichFaces
>          Issue Type: Bug
>    Affects Versions: 3.3.1
>         Environment: Windows Vista, Java 6, JBoss 4.2.2.GA, JBoss Seam 2.1.1.GA
>            Reporter: Markus Merder
>            Priority: Trivial
>
> Since Richfaces Version 3.3.1.GA an exception is thrown, when value of rich:columns is null. 
> For example:
> <rich:columns value="#{someList[0].years}" var="year" index="index" rendered="#{not empty someList[0].years}">...</rich:columns>
> throws: 
> javax.servlet.jsp.JspTagException: FOREACH_BAD_ITEMS
> 	at org.richfaces.iterator.SimpleForEachIterator.toForEachIterator(SimpleForEachIterator.java:135)
> 	at org.richfaces.iterator.SimpleForEachIterator.supportedTypeForEachIterator(SimpleForEachIterator.java:98)
> 	at org.richfaces.taglib.ColumnsHandler.prepare(ColumnsHandler.java:304)
> 	at org.richfaces.taglib.ColumnsHandler.apply(ColumnsHandler.java:489)
> 	at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
>         ....
> because supportedTypeForEachIterator(Object o) in SimpleForEachIterator is called with null.

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