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https://issues.apache.org/struts/browse/WW-2465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rainer Hermanns closed WW-2465.
-------------------------------
Resolution: Fixed
fixed in SVN trunk
> Dynamic trees in the dojo plugin causes a freemarker error if the child
> property returns null
> ---------------------------------------------------------------------------------------------
>
> Key: WW-2465
> URL: https://issues.apache.org/struts/browse/WW-2465
> Project: Struts 2
> Issue Type: Bug
> Components: Plugin - Dojo Tags
> Affects Versions: 2.1.1
> Reporter: Al Sutton
> Assignee: Rainer Hermanns
> Fix For: 2.1.1
>
> Attachments: dojo_dynamic_tree_null_children_fix.patch
>
>
> If the property specified in the childProperty for an s:tree returned a null
> the following freemarker error occurs;
> Expression stack.findValue(parameters.childCollectionProperty.toString()) is
> undefined on line 24, column 8 in template/ajax/treenode-include.ftl.
> The problematic instruction:
> ----------
> ==> list stack.findValue(parameters.childCollectionProperty.toString()) as
> child [on line 24, column 1 in template/ajax/treenode-include.ftl]
> in include "/${parameters.templateDir}/ajax/treenode-include.ftl" [on line
> 26, column 5 in template/ajax/treenode-include.ftl]
> in include "/${parameters.templateDir}/ajax/treenode-include.ftl" [on line
> 26, column 5 in template/ajax/treenode-include.ftl]
> in include "/${parameters.templateDir}/ajax/treenode-include.ftl" [on line
> 124, column 5 in template/ajax/tree.ftl]
> ----------
> The attached patch fixes this problem by using a empty list as the default if
> a null is returned.
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