Why is my Maven NB app bigger than my Ant NB app ?

I've noticed that my Maven-based platform app pulls in stuff that I do not
know why is there.

I've done some testing by letting the IDE create two out-of-the-box
projects for me and them comparing them. One is Ant-based (New Project -->
NetBeans Modules --> NetBeans Platform Application) and the other is
Maven-based (New Project --> Maven --> NetBeans Application).

I've then let the IDE create a ZIP distribution on both projects and then
comparing the ZIPs.
All tests done on NB IDE 8.2 and using NB 8.2 platform deps.

The Maven-based application contains two cluster directories that the
Ant-based doesn't:

extra/
       this contains net-java-html-boot-script.jar and
net-java-html-sound.jar
java/
       this contains org-netbeans-modules-junitlib.jar


Why? If the Ant-based app doesn't need then neither should the Maven-based
ditto.


/Peter