I have replicated it here, I found the error a little counter intuitive:
https://github.com/nmwael/wicket/blob/master/wicket-examples/src/main/java/org/apache/wicket/examples/tree/BeginnersTreePage.java
On Fri, Dec 7, 2018 at 5:48 PM Sven Meier wrote:
> Hi,
>
> the stacktrace shows clearly
Hi,
works fine when I've added your case to FormInput in wicket-examples.
You should create a quickstart showing your problem.
Have fun
Sven
Am 08.12.18 um 13:40 schrieb christophe:
Hello
Sorry for this late reply and a fairly confusing request. Let me try to
clarify
1) I still use Wicket