Define default argLine property to be able to execute tests

Author: infeo

pom.xml

@@ -33,6 +33,9 @@
 		<dependency-check.version>6.2.2</dependency-check.version>
 		<jacoco.version>0.8.7</jacoco.version>
 		<nexus-staging.version>1.6.8</nexus-staging.version>
+
+		<!-- empty default needed to not break testing due to maven-surefire-plugin config -->
+		<argLine></argLine>
 	</properties>
 
 	<licenses>