When the xUnit plugin Custom Tool option is parsing data files it does not correctly identify failing tests when processing thresholds.

For example:

Test Set 1 - no failures
Test Set 2 - some failures
Test Set 3 - no failures

Results in identified failures for Test Set 2 but the job still succeeds after processing thresholds. Please see the attached console log output and screenshot of the jenkins job.

All threshold values in the plugin were not filled (believe this to mean no failed tests are permitted).