fix argline (#39)

diff --git a/pom.xml b/pom.xml
index 2c53579..4729d94 100644
--- a/pom.xml
+++ b/pom.xml
@@ -240,6 +240,7 @@
                 <configuration>
                     <useSystemClassLoader>true</useSystemClassLoader>
                     <forkMode>once</forkMode>
+                    <argLine>${argline} ${jacocoArgLine}</argLine>
                     <systemProperties>
                         <!-- common shared -->
                     </systemProperties>