.exec file not generated. Using Wildfly 10.1.0, org.jacoco.agent-0.7.4.201502262128-runtime.jar

[ashr...@gmail.com]

Hello All,

I am new to Jacoco.
I am doing the following, but the .exec file is not getting generated.
Please advice me on what could be wrong in our setup.

Steps i am performing:

1. downloaded the org.jacoco.agent-0.7.4.201502262128-runtime.jar in the folder /home/ashraf/jacoco/

2. added the following line in "standalone.conf" file under <Wildflyhome>/bin

JAVA_OPTS="$JAVA_OPTS -javaagent:/home/ashraf/jacoco/org.jacoco.agent-0.7.4.201502262128-runtime.jar=destfile=/home/ashraf/jacoco/jacoco.exec,output=tcpserver,address=*"

3. started the wildfly server that has one of our application .ear file also deployed. The java process looks like the following:

[root@dvs02 ~]# ps -ef|grep java
root 4786 4736 99 12:43 pts/2 00:00:25 /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64/jre//bin/java -D[Standalone] -server -Xms64m -Xmx1024m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true -javaagent:/home/ashraf/jacoco/org.jacoco.agent-0.7.4.201502262128-runtime.jar=destfile=/home/ashraf/jacoco/jacoco.exec,output=tcpserver,address=* -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Dorg.jboss.boot.log.file=/opt/ndvr/scheduler/wildfly-10.1.0.Final/standalone/log/server.log -Dlogging.configuration=file:/opt/ndvr/scheduler/wildfly-10.1.0.Final/standalone/configuration/logging.properties -jar /opt/ndvr/scheduler/wildfly-10.1.0.Final/jboss-modules.jar -mp /opt/ndvr/scheduler/wildfly-10.1.0.Final/modules org.jboss.as.standalone -Djboss.home.dir=/opt/ndvr/scheduler/wildfly-10.1.0.Final -Djboss.server.base.dir=/opt/ndvr/scheduler/wildfly-10.1.0.Final/standalone -b=0.0.0.0
root 4907 644 0 12:43 pts/2 00:00:00 grep --color=auto java
[root@dvs02 ~]#

4. Executed one of the jmeter script that hits one of our REST APIs of our application

5. Expected the .exec "/home/ashraf/jacoco/jacoco.exec" to be generated. But the file didn't got generated.

6. I shutdown the Wildfly server and still the .exec "/home/ashraf/jacoco/jacoco.exec" is not getting generated.

Please advice me on what could be wrong.

Thanks,
Ashraf

[Marc Hoffmann]

Hi,

if you want a file to be created the output has to be 'file', not
'tcpserver'.
Please see documentation:

http://www.jacoco.org/jacoco/trunk/doc/agent.html

Regards,
-marc

[avaz]

Thanks a lot Marc. That was the issue.
After changing it to "file", everything worked fine.

Thanks,
Ashraf

[Marc Hoffmann]

Good to hear!

Have fun with jaCoCo!
-marc

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[supar...@gmail.com]

Hi,
We were working on this some times back and realized that not much help is available in internet over this.

Feel free to check out our solution here:

http://www.qalearningguide.com/2017/10/code-coverage-for-android-using-jacoco.html

Hope this helps you as well.

Thanks,
Suparna