how to remove all users in a given group

[nick_l]

hi guys,

I want to remove all users in a group, given I don't know who are currently in this group.

If I know the user, I can use following code to remove him from group:

accessControlService.removeChildAuthorities(groupId, new String[] {userId()});

But the problem is I don't know who are in this group.

Any idea?

[kaynezhang]

You can use getChildAuthorities  to get all users belong to this group,and use removeChildAuthorities to remove users from group.
Or
You can use deleteAuthority to delete this group and recreate it.