Add missing dependency (fix #1269)

[gnodet]

No description provided.

[gnodet]

This is clearly not sufficient to allow parallel builds. There are additional problems in test dependencies, as the jacoco-maven-plugin is used in various places during tests but not referenced as a dependency.

I'll let jacoco developpers fix the problem...

[marchof]

Also some of the (IT) tests allocate ports. Probably this will result in random failure with parallel builds.

Out of curiosity: What are you working on to require parallel JaCoCo builds?

[gnodet]

Also some of the (IT) tests allocate ports. Probably this will result in random failure with parallel builds.

Out of curiosity: What are you working on to require parallel JaCoCo builds?

I'm just working on mvnd and had the report the jacoco was failing with it (see apache/maven-mvnd#558), so I investigated a bit.

As was correctly pointed out - this is clearly not sufficient to allow parallel builds, i.e. doesn't fully fix #1269