Can I get jacoco offline instrumentation for docker image i am running(spring boot webservice image)

[rahul.for...@gmail.com]

Hi All,

I am using docker to run my application which is spring boot restful webservice.

Can i use jacoco to fetch report after manual/automation test finish to check how much code we are hitting via QA team.

I started docker container via passing JAVA_OPTS=-javaagent:/opt/jacoco/lib/jacocoagent.jar=output=tcpserver,address=*,port=6300 .

and i can connect to via jacococli to get dump

java -jar /opt/jacoco/lib/jacococli.jar dump --address localhost --destfile /tmp/jacoco.exec

now geting report out of dump file i need to pass classfile also but hence i am running images how i can pass class files.

If my question is not clear let me know i will try to put it in other way i need to resolve same on high priority, Thanks.

[Evgeny Mandrikov]

Hi,

You can either extract class files from your Docker image - please refer to Docker documentation about how to do this, or you can preserve them during construction of image for later use.

[ravia...@gmail.com]

Hi, I am using the following command to start the service with offline instrumented code. Seeing error:
Caused by: java.lang.NoClassDefFoundError: org/jacoco/agent/rt/internal_773e439/Offline

Command am using is : java -cp org.jacoco.agent-0.8.2.jar -jar target/demo-0.0.1-SNAPSHOT.jar

Please help me what could be the issue here.

Thanks
Ravi

[Marc Hoffmann]

Hi Ravi,

this is not the agent you are using (org.jacoco.agent-0.8.2.jar is an API to provide the agent as a resource). In the manual download the agent is

lib/jacocoagent.jar

If you’re using Maven the agent’s coordinates are:

groupId: org.jacoco

artifactId: org.jacoco.agent

classifier: runtime

Regards,

-marc

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