SonarQube not picking up Cobertura code coverage

Question

I am analysing a Java project that has been unit tested and Cobertura coverage.xml reported. I am using SonarQube 4.1.1 and latest Sonar Runner. I have successfully imported Cobertura coverage results to Sonar 3.2 and Ant analyzer, but with this new version I am running into problems. In the new Sonar analysis execution (through Jenkins) I see no reference in logs that it would have started any Cobertura engine or anything. My settings in Runner Jenkins project:

sonar.dynamicAnalysis=reuseReports
sonar.java.coveragePlugin=cobertura
sonar.cobertura.reportPath=[mypath]/coverage.xml
sonar.junit.reportsPath=[mypath]/

No mentioning of Cobertura in the analysis output (except my own property values) and SonarQube page shows "-" in coverage report. Unit test results are shown fine.

I have also added all source, bin, and test directories. Any ideas? Thanks.

Update I wonder if the reason why Cobertura coverage is not reported on SonarQube page, is because in Jenkins my SonarQube project clones (Clone plugin) the workspace from a previous Project build? If the coverage.xml file contains static paths, then maybe it goes wrong somehow.

Answer 1

Ok the solution was quite obvious. SonarCube 4.1.1 does not come with Cobertura preinstalled, so I installed it and now it works :) Maybe it was preinstalled in 3.2 version, I can't remember.

Answer 2

For any "reuse reports" feature in SonarQube (may it be for code coverage, test execution or any other third-party tool that generates a intermediate report), the report must be generated based on the same source files (in terms of file system location) than the ones that will be used for the SonarQube analysis. Otherwise the SonarQube plugins won't be able to match paths from the reports with paths of the analyzed sources.

So you guessed it right: cloning the workspace and running the SonarQube analysis on this clone is the reason why the coverage can't be computed.