[WICKET-4259] Using an IValidator on an AjaxEditableLabel causes ClassCastException

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.3
• Fix Version/s: 1.5.4, 6.0.0-beta1
• Component/s: wicket-extensions
• Assignee: Pedro Santos
• Reporter: Stefan Schulte
• Created: 25/Nov/11 10:18
• Updated: 28/Nov/11 17:47
• Resolved: 28/Nov/11 17:47

Description

AjaxEditableLabel<Integer> label = new AjaxEditableLabel<Integer>("label", new PropertyModel<Integer>(this, "value"));
form.add(label);
label.setRequired(true);
label.add(new RangeValidator<Integer>(1, 10));

Using a RangeValidator<Integer> on an AjaxEditableLabel<Integer> causes an ClassCastException after editing the label.

java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String

This can be avoided by setting the type explicit on the AjaxEditableLabel.

label.setType(Integer.class);

But this wasn't necessary in Wicket 1.4.19. In this version all works fine without setting the type explicit.

I found out, that AbstractTextComponent.resolveType() is not able to get the type of the DefaultModel of the AjaxEditableLabel in Wicket 1.5.3.

I will attach two QuickStarts to demonstrate the bug. One with wicket 1.4.19 and the other with Wicket 1.5.3