jacoco is displaying the old result until jacoco.exec is deleted

[Balasubramaniyan K]

Hi,

I am seeing a strange behavior. 

When my code coverage has reached to 100% , I go and comment out certain test cases expecting that the code coverage should be 91%. 

But I see the coverage is 100%. However, if I delete the jacoco.exec and run the maven again, I get the desired result 91%.

Any help on why I see this behavior and is there a way to fix it? Though it is not related to any jacoco version, I use 0.8.7

Thanks,

Bala

[Marc Hoffmann]

Hi Bala, by

default the JaCoCo agent appends new execution data to existing exec files. This effectively means it get merged with the status of previous runs.

So either delete the exec files, run mvn clean or configure JaCoCo with append=false. See documentation: https://www.jacoco.org/jacoco/trunk/doc/prepare-agent-mojo.html

Regards,

-marc

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[Balasubramaniyan K]

Hi Marc,

Thanks. It worked once I added <append>false</append>

Thanks,

Bala