Yes, I'm using the form default setting (DefaultFormProcessing = true).
But for form processing you have to use a submit button or a SubmitLink or
you can call the form validate() method programmatic.

See also Wicket API Doc of Form: (
Wicket API Doc )
"/If you want you can call validate() to execute form validation, hasError()
to find out whether validate() resulted in validation errors, and
updateFormComponentModels() to update the models of nested form

the first two are working perfect, but not the programmatic way.
Nevertheless I found a solution for my problem. I'm using a SubmitLink in my
LinkTree component.
For that I had to override the newLink() method of LinkTree.

see also the thread:
SubmitLink in BaseTree 

Thanks for your hints!


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