wiQuery Dialog - null obj jQuery error

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I have a simple wiQuery Dialog window:

Java code:

final Dialog dialog = new Dialog("dialog");
        add(dialog);
add(new WebMarkupContainer("wiquery").add(new WiQueryEventBehavior(new 
Event(MouseEvent.CLICK) {
            private static final long serialVersionUID = 1L;

            @Override
            public JsScope callback()
            {
                return JsScope.quickScope(dialog.open().render());
            }

        })));

HTML markup:

<p wicket:id="dialog">Popup modal window</p>
<a wicket:id="wiquery">Dialog</a>

Each time I try I receive an error:
Cannot read the property 'length' of undefined.

Temporarily I figured out this problem by changing jQuery script source 
(v1.9.1):

Line 622 from length = obj.length, to length = obj ? obj.length : 0,
Line 952 from var length = obj.length, to var length = obj ? obj.length : 0,
Line 959 from if ( obj.nodeType === 1 && length ) { to if ( obj && obj.nodeType 
=== 1 && length ) {

Original issue reported on code.google.com by toudidel on 6 Apr 2013 at 8:44

[GoogleCodeExporter]

Wicket version 6.6.0
wiQuery version 6.6.0

Original comment by toudidel on 6 Apr 2013 at 8:48

[GoogleCodeExporter]

this issue has been fixed in jquery since wicket 6.9+

Original comment by hielke.hoeve on 26 Nov 2013 at 8:46

[GoogleCodeExporter]

Original comment by hielke.hoeve on 26 Nov 2013 at 8:46

• Changed state: Fixed

[GoogleCodeExporter]

Thx for fixing

Original comment by toudidel on 26 Nov 2013 at 8:58