We use CasperJS as Tool for Frontend Integrationtests. Casper generates jUnit-Files like this:

<testsuites time="12.975">
<testsuite name="/qa/src/test/javascript/portal/questionnaire/photoupload.js" tests="2" failures="0" errors="0" time="12.975" timestamp="2013-11-01T13:24:46.696Z" package="../../test/javascript/portal/questionnaire/photoupload">
<testcase name="ProfilePrefill is openend" classname="../../test/javascript/portal/questionnaire/photoupload" time="10.292"/>
<testcase name="ajaxTransport is defined" classname="../../test/javascript/portal/questionnaire/photoupload" time="0.001"/>

<system-out/>
</testsuite>
</testsuites>

The only way I see to get a mapping is via the ResultSeeking Strategy: "jUnit Suite Name".
We use exactly the String that is entered in Testlinks "Custom Field"

We also tried to use a simpler name="photoupload".

Jenkins can read the jUnit File and shows the correct Result. But for Testlink "Execution Status" is set to "Not Run"

We have other Backend jUnit Testfiles that do work for us. (At least with ResultSeeking "jUnit Method Name")