Deny illegal access.

Capstan · Capstan · commit 1529690f0d79 · 2019-09-06T10:27:44.000+02:00
diff --git a/build.gradle b/build.gradle
@@ -45,6 +45,7 @@ test {
     useTestNG() {
         useDefaultListeners = true;
     };
+    jvmArgs "--illegal-access=deny"
 }
 
 /*
