I have a project that has both Junit tests and QTP regression tests(configured through QC Plugin). If enable only one of these 2 test reports, the test result shows the trend report properly. However if both reports are enabled, Hudson(2.1.1) shows 2 identical trend reports reflecting only the Junit test result.
The unit test reports are under /unittest-report/ folder and QC reports are under the workspace root. Both test report files contain correct data.