yes, Sven. it's the same issue of wicket-4279
https://issues.apache.org/jira/browse/WICKET-4279 I'll download wicket 1.5.4 after release, thank you! -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/questions-about-CheckGroupSelector-s-behavior-tp4291374p4291630.html Sent from the Users forum mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org