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https://issues.apache.org/struts/browse/WW-2383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dale Newfield updated WW-2383:
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Attachment: optiontransferselect.patch
This patch adds more than just the three characters needed because it also
backs out another patch that improperly addressed the issue.
> option transfer select .ftl is brittle
> --------------------------------------
>
> Key: WW-2383
> URL: https://issues.apache.org/struts/browse/WW-2383
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.0.11, 2.1.0
> Reporter: Dale Newfield
> Priority: Minor
> Attachments: optiontransferselect.patch
>
>
> This type of patch probably should be applied in a number of places, but this
> bug is just for one of them.
> I had an optiontransferselect tag that had an entry that happened to have
> "null" as it's label. This caused freemarker to throw an exception (that got
> displayed textually in the generated page. This exception meant that the
> output was no longer well formed, which caused sitemesh to crash with an ugly
> error message.
> In freemarker, while "null" is a valid value, apparently it's illegal to
> store that in a variable, so the assign tag is where this failed.
> The fix is very simple: provide a default value of "" just in case the
> attribute lookup returns null.
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