Jacoco report in command line

Question

I have to write a .sh launching an UI application covered with Jacoco. On exit, a jacoco report must be generated.

I'm not able to generate the jacoco.exec with this simple command :

java -jar ../binaries/editor.debug/application.jar -javaagent:/atgl/products/jacoco/0.6.3/lib/jacocoagent.jar=destfile=jacoco.exec

The first part of the command works fine and launch the program, but the -javaagent option doesn't generate report and the program doesn't launch. If I do a syntax error it's exactly the same behavior.

What's wrong with my command ?

Secondly, this command create a .exec file. How can I generate a .html report in command line ?

Skartt · Accepted Answer · 2016-11-28 18:10:30Z

5

The problem was the position of the -javaagent option. It needed to be in first position, like this :

java -javaagent:/atgl/products/jacoco/0.6.3/lib/jacocoagent.jar=destfile=jacoco.exec -jar ../binaries/editor.debug/application.jar

Then as Godin said, it's not possible to generate report in command line. I created an ant file exectoreport.xml with a rule do_jacoco_reports. The rule is launched by a script exectoreport.sh, that must be called after the natural exit of the application.

answered Nov 28, 2016 at 18:10

Skartt

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Adriaan Koster · Accepted Answer · 2022-12-05 10:36:53Z

5

By using jacococli.jar from jacoco 0.7.9 version, now reports can be generated using command line. I was trying the same and able to generate the report using commandline. If you are able to generate jacoco.exec file successfully use below command to generate the report.

java -jar "your local path/jacococli.jar" report "your local path/jacoco.exec" --classfiles "project path to class files" --html "local path\jacoco-report" --name myReport --sourcefiles "project path\src\main\java"

You should be able to see report in html format. Reference http://www.jacoco.org/jacoco/trunk/doc/cli.html

edited Dec 5, 2022 at 10:36

Adriaan Koster

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answered Oct 25, 2017 at 9:07

Sikandar

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4 Comments

dicle Over a year ago

How did you get jacococli.jar file? I added as dependencies in pom.xml but it did not generate anything for me.

Sikandar Over a year ago

I downloaded the jar and got that added in my enterprise nexus repo.

griz Over a year ago

To where should the --classfiles option direct to?

Sikandar Over a year ago

Its long since I worked on this but it should point to build folder where class file exists for the project

Godin · Accepted Answer · 2019-08-02 15:13:01Z

3

Usage of JaCoCo involves two steps - gathering of coverage information and generation of report. So nothing wrong with your command - it gathers coverage information into .exec file. After this you can generate report using Ant or Maven, or built your own report generator using JaCoCo APIs - JaCoCo does not yet provide a out-of-the-box command line interface for report generation, however there is an example of API usage for report generation.

Update (2/8/2019)

JaCoCo provides command line interface since version 0.8.0.

edited Aug 2, 2019 at 15:13

answered Nov 25, 2016 at 22:49

Godin

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2 Comments

Skartt Over a year ago

Thanks for your answer. But I can't even generate a .exec file ! Need I to compile my application in a special way to instrument it before executing it with jacoco agent ? I think I will use ant to generate the report once I have the .exec file

Skartt Over a year ago

Precision : the .exec file si generated when I enter -javaagent:/atgl/products/jacoco/0.6.3/lib/jacocoagent.jar=destfile=jacoco.exec in the VM argument field in eclipse. It doesn't work on command line

Sudheer Singh · Accepted Answer · 2021-05-19 08:06:37Z

0

if you have added jacoco plugins into your pom.xml then simply run this command and you will see jacoco report inside target\site\jacoco

mvn jacoco:report

To add jacoco plugin into your pom.xml, paste below code snippet:

<plugins>
    <plugin>
        <groupId>org.jacoco</groupId>
        <artifactId>jacoco-maven-plugin</artifactId>
        <version>0.8.2</version>
        <executions>
            <execution>
                <goals>
                    <goal>prepare-agent</goal>
                </goals>
            </execution>
        </executions>
    </plugin>

answered May 19, 2021 at 8:06

Sudheer Singh

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