@Override
    public void setAdmins(List<JID> admins) {
        throw new UnsupportedOperationException("The GroupAdminProvider is read only");
    }
Makes the users of specific group Openfire administrators.

<p>To use, set the System Property `provider.admin.className` to the value `org.jivesoftware.openfire.admin.GroupBasedAdminProvider`</p>

<p>The list of Openfire administrators will be taken from the members of the group defined by the System Property
`provider.group.groupBasedAdminProvider.groupName` - which defaults to `openfire-administrators`</p>

<p><strong>NOTE: </strong> Although the system properties `provider.admin.className` and `provider.group.groupBasedAdminProvider.groupName` are dynamic, a restart may
be required as the list of admin users may be cached.</p>
xmppserver/src/main/java/org/jivesoftware/openfire/admin/GroupBasedAdminProvider.java