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https://issues.apache.org/jira/browse/WW-4514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart resolved WW-4514.
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Resolution: Fixed
> DefaultUrlHelper.buildParametersString appends just ? if collection is empty
> ----------------------------------------------------------------------------
>
> Key: WW-4514
> URL: https://issues.apache.org/jira/browse/WW-4514
> Project: Struts 2
> Issue Type: Bug
> Components: Core Actions
> Affects Versions: 2.3.24
> Reporter: Jasper Rosenberg
> Assignee: Lukasz Lenart
> Priority: Trivial
> Fix For: 6.1.0
>
> Attachments: DefaultUrlHelper.patch
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> DefaultUrlHelper.buildParametersString() checks that it has parameters to
> append before adding the first "?"/"&", but if the only parameters are empty
> Iterables/Arrays, then it shouldn't do that.
> I'd suggest adding the new query string to a StringBuilder, and then if it is
> non-empty, append that with the separator to the link at the end. (See patch)
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