THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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This method now accepts IValidationError as an argument and returns IValidationError. This way it can be used with other IValidationError implementations like RawValidationError for example.
org.apache.wicket.ajax.attributes.AjaxRequestAttributes#setAllowDefault
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() is deprecated in favour of #setPreventDefault() WICKET-5197
This is done to make it more consistent with JavaScript API.
Same for #isAllowDefault() - use #isPreventDefault() instead.
org.apache.wicket.ajax.attributes.AjaxRequestAttributes#eventPropagation is now BUBBLE by default WICKET-5198
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