GroupUser u = new GroupUser("user_ml" + i + "_u" + j);
users.add(u);
}
Collection moderators = ml.getModerators();
for(int j=0; j<NB_USER_PER_GROUP; j++) {
GroupModerator gm = new GroupModerator("moderator_ml" + i, "mod" + j);
moderators.add(gm);
}
pm.makePersistent(ml);
}