@Override
public Set<String> checkPlayerPermissions(String player, Set<String> perms)
{
ServerConfigurationManager scm = MinecraftServer.getServer().getConfigurationManager();
if (scm == null) return Collections.emptySet();
UserListBans bl = scm.func_152608_h();
if (bl == null) return Collections.emptySet();
if(bl.func_152703_a(player) != null) {
return Collections.emptySet();
}
Set<String> rslt = hasOfflinePermissions(player, perms);
if (rslt == null) {
rslt = new HashSet<String>();