Upgrade surefire plugin
<test.hide>true</test.hide>
<doclint>all</doclint>
<scala.major-version>2.11</scala.major-version> <!-- TODO: factorylib magic for maven cache bootstrapping prevents moving this to container-dep-versions. -->
- <surefire.version>2.19.1</surefire.version> <!-- NOTE bjorncs 15.06.2017: Version 2.20 has OoM issues -->
+ <surefire.version>2.21.0</surefire.version>
</properties>
</project>
