Tests failing on mvn install and not in IntelliJ with org.reflections:reflections library

I added a feature in my Java library for unit testing. In particular, I'm now using a reflection library (i.e. org.reflections:reflections vs. 0.9.10) to some no-argument constructors.

Apart from this background, my unit tests are running well in my IDE (IntelliJ 15.0.3), but some of them fail when I run mvn clean install via command line.

The unit tests are in class ScanNoArgumentConstructorTest and the commit that has the failure is this one.

I assumed it was a Surefire issue, so I set the following configuration:

<configuration>
    <reuseForks>false</reuseForks>
    <forkCount>1</forkCount>
</configuration>

But apparently didn't help.

Does someone have any clue?