NPE with wicket:enclosure attribute and hierarchy mismatch
----------------------------------------------------------
Key: WICKET-3843
URL: https://issues.apache.org/jira/browse/WICKET-3843
Project: Wicket
Issue Type: Bug
Components: wicket-core
Affects Versions: 1.4.17
Reporter: Adrian Sandor
Please refer to the example code:
public class TestPage extends WebPage {
public TestPage() {
add(new WebMarkupContainer("d"));
add(new Label("msg", "hi"));
}
}
TestPage.html:
<html xmlns:wicket>
<body>
<div wicket:id="d">
<div wicket:enclosure="msg"><span wicket:id="msg"></span></div>
</div>
</body>
</html>
The label is wrongly added to the page instead of the "d" container, but I am
expecting wicket to show a nice error message instead of this:
java.lang.NullPointerException
at
org.apache.wicket.markup.html.internal.InlineEnclosure.onAfterRenderChildren(InlineEnclosure.java:81)
at org.apache.wicket.Component.afterRender(Component.java:1039)
at
org.apache.wicket.MarkupContainer.onAfterRenderChildren(MarkupContainer.java:1805)
at org.apache.wicket.Component.afterRender(Component.java:1039)
at
org.apache.wicket.MarkupContainer.onAfterRenderChildren(MarkupContainer.java:1805)
at org.apache.wicket.Component.afterRender(Component.java:1039)
at org.apache.wicket.Page.renderPage(Page.java:936)
[...]
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