When I upgraded from Java 7 to Java 8, JaCoCo broke.
At that time, the most recent version of the Maven Plugin did not work,
and I had to hard-code a (slightly older) version in order to get builds to work.
Now, I have upgraded to Java 9, and the previously-hard-coded version does not work with that.
Removing the version specifyer (well, commenting it out) brings me back to a state where
builds succeed.
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<!-- <version>0.6.5.201403032054</version> -->
- <version>0.7.4.201502262128</version>
+ <!-- <version>0.7.4.201502262128</version> -->
<executions>
<!--
Prepares the property pointing to the JaCoCo runtime agent which