"Skipping JaCoCo execution due to missing execution data file." only in CI environment

[pilch.p...@gmail.com]

Hello,

I am trying to debug an issue I'm experiencing with JaCoCo that manifests in my CI environment (Travis), but not locally on my workstation. My intended goal is to have two separate reports produced by JaCoCo - one for unit tests, and the other for integration tests.

On my workstation running Maven 3.3.9 and JDK 1.8.0_91, everything works as intended when I run standard lifecycle goals like "install" or "verify". I based my configuration off of https://github.com/Godin/sonar-experiments/blob/master/jacoco-examples/maven-invoker-plugin-example/pom.xml
My ${project.reporting.outputDirectory} successfully contains "jacoco-it" and "jacoco-ut".
My POM file is here: https://github.com/patrickpilch/dependency-license-checker/blob/d4a3e3370639c2f52d7083ca5163cdaaace3ba15/pom.xml#L153 and a debug log of a successful local build is here: https://gist.githubusercontent.com/patrickpilch/21d32e367b312443c98cbf2bcaa687fa/raw/c0784a269d744e165ab5cdf533c8ffff7e01c668/local_build_log.md

The problem I'm experiencing is that when trying to build in my CI environment, only the JaCoCo unit tests .exec file and reports appear. The Travis build debug output with environment details and versions is here: https://gist.githubusercontent.com/patrickpilch/21d32e367b312443c98cbf2bcaa687fa/raw/c0784a269d744e165ab5cdf533c8ffff7e01c668/ci_build_output.md

It's easy to reproduce this on a Travis docker container. Instructions here: https://gist.githubusercontent.com/patrickpilch/21d32e367b312443c98cbf2bcaa687fa/raw/c0784a269d744e165ab5cdf533c8ffff7e01c668/steps_to_reproduce.md

Any help would be appreciated. Thank you!

[Mirko Friedenhagen]

Hello,

you could try to use Maven 3.3.9 as well in Travis, see
https://github.com/mojohaus/mojo-parent/blob/master/.travis.yml for how to use the takari wrapper plugin.

Regards
Mirko
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[pilch.p...@gmail.com]

Hi Mirko,

Unfortunately that did not resolve the issue.

Commands executed:
mvn -N io.takari:maven:wrapper -Dmaven=3.3.9
./mvnw --show-version clean verify

Output here: https://gist.githubusercontent.com/patrickpilch/21d32e367b312443c98cbf2bcaa687fa/raw/fac1d3372bb24d18f3df7fcba5a8acc9a0c4296a/wrapper_test.txt

[Mirko Friedenhagen]

Hello,

the prepare steps only set a system property argLine, which is picked up by surefire resp. failsafe plugins and added for the forked test JVM. You are using the invoker plugin, where an equivalent option is called invokerOpts, see http://maven.apache.org/plugins/maven-invoker-plugin/run-mojo.html.

Try setting a property <invoker.mavenOpts>${argLine}</invoker.mavenOpts>.

Regards
Mirko
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Am 05.07.2016 00:38 schrieb <teun...@gmail.com>:

Hi Mirko,

Unfortunately that did not solve the issue.

Commands executed:
mvn -N io.takari:maven:wrapper -Dmaven=3.3.9
./mvnw --show-version clean verify

Output here: https://gist.githubusercontent.com/patrickpilch/21d32e367b312443c98cbf2bcaa687fa/raw/fac1d3372bb24d18f3df7fcba5a8acc9a0c4296a/wrapper_test.txt

On Monday, July 4, 2016 at 4:36:02 PM UTC-5, Mirko Friedenhagen wrote:

To view this discussion on the web visit https://groups.google.com/d/msgid/jacoco/952a70a2-8f42-4b3b-b563-acfc278319c6%40googlegroups.com.

[Evgeny Mandrikov]

Hi Patrick,

I think that the problem in Travis is that configuration done by maven-invoker-plugin via mavenOpts is overwritten by "~/.mavenrc", which is presented in Travis. We faced the same issue in the build of JaCoCo itself - see our description and solution at https://github.com/jacoco/jacoco/blob/master/.travis.sh#L59

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[pilch.p...@gmail.com]

Evgeny,

Adding a MAVEN_SKIP_RC 'env' entry in my .travis.yml did the trick!

Thanks Evgeny & Mirko