On Saturday, January 21, 2017 at 6:37:14 AM UTC-8, Evgeny Mandrikov wrote:
>
> Hi,
>
> As stated in 
> http://www.jacoco.org/jacoco/trunk/doc/report-aggregate-mojo.html 
> "report-aggregate" uses dependencies to build report, so requires a 
> dedicated module and not aggregator pom.
>
> You can find an example in integration tests for JaCoCo Maven Plugin - see 
> https://github.com/jacoco/jacoco/tree/v0.7.8/jacoco-maven-plugin.test/it/it-report-aggregate
>
> Also build of JaCoCo itself utilizes this feature - see 
> https://github.com/jacoco/jacoco/blob/0.7.8/org.jacoco.doc/pom.xml#L111-L135
>
> And you can find other examples in internet, e.g. 
> https://groups.google.com/d/msg/jacoco/mfRi97alxqs/63KqpEZKAQAJ
>
> Hope this clarifies,
> Evgeny
>
>
I need more information. It generated the report, but it showed no 
coverage.  I'm guessing I have to somehow communicate the name of the 
".exec" file that I'm using.

I constructed an additional module called "jacoco-aggregate", and this is 
an excerpt of its POM:
    <dependencies>
       ...
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>0.7.8</version>
                <executions>
                    <execution>
                        <id>report-aggregate</id>
                        <phase>verify</phase>
                        <goals>
                            <goal>report-aggregate</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

I added a dependency for each child module that has unit tests.  I verified 
that those individual modules are generating data. I looked at the 
properties for report-aggregate, but it's not obvious how I configure it to 
know what the name is of the data file in each module.
 

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