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From "Howard M. Lewis Ship (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (TAP5-675) NPE in Element when removing empty children
Date Fri, 01 Apr 2011 00:18:05 GMT

     [ https://issues.apache.org/jira/browse/TAP5-675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Howard M. Lewis Ship closed TAP5-675.
-------------------------------------

    Resolution: Cannot Reproduce
      Assignee: Howard M. Lewis Ship

I'm assuming that TAP5-640 does fix this.  Please provide a test (a unit test, preferably)
that reproduces this if not.

> NPE in Element when removing empty children
> -------------------------------------------
>
>                 Key: TAP5-675
>                 URL: https://issues.apache.org/jira/browse/TAP5-675
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.1.0.4
>            Reporter: Dan Adams
>            Assignee: Howard M. Lewis Ship
>
> I have a page that renders an XML sitemap:
> <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">
> 	<t:loop source="items" value="item" t:mixins="domlistener">
> 	<url>
> 		<loc>${url.url}</loc>
> 		<lastmod><t:output value="url.lastModified" format="literal:yyyy-MM-dd" /></lastmod>
> 		<changefreq>${url.changeFrequency}</changefreq>
> 		<t:if test="showPriority"><priority>${url.priority}</priority></t:if>
> 	</url>
> 	</t:loop>
> </urlset>
> class:
> void onEndElementFromLoop(Element el) {
> 	if (el.getChildren().isEmpty()) 
> 		el.remove(); /// NPE HERE
> }
> An NPE gets thrown at org.apache.tapestry5.dom.Node.remove(Node.java:186).
> Appears to be the same issue or related to TAP5-640

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