Dirk Forchel created WICKET-6306:
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Summary: Changing model object of Panel added to a Border not
allowed
Key: WICKET-6306
URL: https://issues.apache.org/jira/browse/WICKET-6306
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 7.6.0, 7.5.0
Reporter: Dirk Forchel
Attachments: testproject.zip
It is not allowed to change the model object of a panel added to a border
component (see attachment).
The quickstart demonstrates the problem. Here you can find 3 test pages all
with a TextField and a Panel with a TextField. For each component, the model
object is set at the onConfigure method. At the first page both components are
added to the page itself. At the second page both components are added to the
border body container of a Border component. At the third page both components
are added to a "Layout" container (a Border component too). The third page is
not rendered with Wicket 7.5.0 (see stacktrace).
It was working for Wicket 7.4.0
org.apache.wicket.WicketRuntimeException: Cannot modify component hierarchy
after render phase has started (page version cant change then anymore)
at org.apache.wicket.Component.checkHierarchyChange(Component.java:3674)
at org.apache.wicket.Page.dirty(Page.java:271)
at org.apache.wicket.markup.html.WebPage.dirty(WebPage.java:332)
at org.apache.wicket.Page.dirty(Page.java:250)
at org.apache.wicket.Page.componentModelChanging(Page.java:904)
at org.apache.wicket.Component.modelChanging(Component.java:2230)
at org.apache.wicket.Component.setDefaultModelObject(Component.java:3133)
at
org.apache.wicket.markup.html.form.FormComponent.setModelObject(FormComponent.java:1579)
at
com.mycompany.front.wicket.components.TestPanel.onConfigure(TestPanel.java:30)
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