Assuming the following JUnit XML report:

<?xml version="1.0" encoding="UTF-8"?>

<testsuites tests="2" failures="0" disabled="1" errors="0" time="11.000" name="AllTests">

<testsuite name="ClassA" tests="1" failures="0" disabled="0" errors="0" time="5.000">

<testcase name="UseCaseA" status="run" time="5.000" classname="ClassA" />

</testsuite>

<testsuite name="ClassB" tests="1" failures="0" disabled="1" errors="0" time="6.000">

<testcase name="DISABLED_UseCaseB" status="notrun" time="6.000" classname="ClassB" />

</testsuite>

</testsuites>

At moment, TestLink plugin reports the above XML as a test that passed though one is disabled.