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https://issues.apache.org/jira/browse/WW-4452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14291141#comment-14291141
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Brent N Atkinson commented on WW-4452:
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Note that it is possible to work around this issue, but application pages must
be modified to use header keys that will match on word boundaries, such as 'x'.
> s:optiontransferselect javascript functions no longer work with negative
> integer keys
> -------------------------------------------------------------------------------------
>
> Key: WW-4452
> URL: https://issues.apache.org/jira/browse/WW-4452
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.3.20
> Reporter: Brent N Atkinson
>
> It appears that the change made to fix WW-4365 broke the javascript functions
> used to implement onclick handlers for the s:optiontransferselect tag.
> While attempting an upgrade to 2.3.20 from 2.3.16.3, all pages containing
> tags like the following are broken (tests fail):
> {code}
> <s:optiontransferselect multiple="true" headerKey="-1" doubleHeaderKey="-1"
> multiple="true" doubleMultiple="true"
> addAllToRightOnclick="selectAllOptionsExceptSome(document.getElementById('saveBuildDefinitionTemplate_selectedBuildDefinitionIds'),
> 'key', '-1');" />
> {code}
> Since the regular expression used to match the header keys now always
> attempts to match on word boundary, the change introduced in WW-4365, it will
> not match negative numbers like '-1'. This is likely to break a number of
> applications since [the struts 2 documentation for
> optiontransferselect|https://cwiki.apache.org/confluence/display/WW/optiontransferselect]
> suggests using '-1'.
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