Create a Sonar plugin in order to collect code coverage and unit tests results from Parasoft Jtest

I am currently running on sonar 1.7 and we are using the Parasoft Jtest for code coverage and unit tests.
The total code coverage result seems to be incorrect.

When I generate a aggregate jtest report with one of our projects it shows a total of 100% code coverage
Sonar however shows a total code coverage of 0.0%

I use a project without modules.

Plese somone know what's the problem ?