Having issue with code coverage stats for the server code running on tomcat using jacoco

[Phani K]

Hi,

We are developing server application using Tomcat. We have written bunch of servlets and many integration tests. All my Integration tests does is make calls to server and verify the response. We would like to get the code coverage for the integration tests. 

As part of it we started exploring jacoco.  My server runs on one machine and integration tests run on another machine. I copied jacoco.jar outside tomcat folder and update setenv.sh (CATALINA_OPTS) and started tomcat 

 - javaagent:/home/phani/jacocoagent.jar=destfile=/home/users/adkumar/dascoverage.exec 

Ran my tests. It created .exec file after stopping the tomcat. When I open the report in Eclemma it shown the coverage as 0%. I am not sure what I am missing here. Can someone help me to get the code coverage for my server code?
 
Thanks.

Regards
Phani

[Marc Hoffmann]

Hi Phani,

this question has been asked many times here before, also documentation should give you a starting point.

1) Execution data is written only at a proper shutdown of JaCoCo. Please click on the "Session" link in the HTML classes. Are you classes listed?

2) If the classes are listed but not linked and the corresponding report shows now coverage you need to make sure you use the exact same classes at runtime than at report generation time.

Regards,
-marc

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