Hi,
Instead of keeping a reference to WebApplication just use
Application.get();: it is bound to thread as a threadlocal. If you need
your specific instance you can always add
public static MyWebApplication getInstance() {
return (MyWebApplication) Application.get();
}
to class MyWebApplication, This way you can always
call MyWebApplication.getInstance() and you don't need to keep a
reference to it as a field on base page.
On Sat, Dec 21, 2019 at 9:03 AM ShengChe Hsiao <[email protected]> wrote:
> Dear all
> I faced a strange exception, the error message:
>
> A problem occurred while checking object with type:
> info.sls.WicketApplication
>
> Field hierarchy is:
>
> 1 [class=info.sls.MapPage, path=1]
>
> private java.lang.Object org.apache.wicket.MarkupContainer.children
> [class=java.util.ArrayList]
>
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children[write:27][write:28]
> [class=org.apache.wicket.markup.html.form.StatelessForm,
> path=1:formGMapSelect]
>
> private java.lang.Object org.apache.wicket.MarkupContainer.children
> [class=java.util.ArrayList]
>
> private final java.lang.String
>
> org.apache.wicket.markup.html.form.ChoiceRenderer.idExpression[write:8][write:11]
> [class=org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink,
> path=1:formGMapSelect:btnSelect]
>
> final info.sls.GMapPanel info.sls.MapPage$1.val$gMapPanel
> [class=info.sls.GMapPanel, path=1:gmaps]
>
> java.lang.Object org.apache.wicket.Component.data
> [class=[Ljava.lang.Object;]
>
> java.lang.Object org.apache.wicket.Component.data[0]
> [class=org.apache.wicket.model.LoadableDetachableModel]
>
> final info.sls.WicketApplication
> info.sls.WicketApplication$3.this$0 [class=info.sls.WicketApplication]
> <----- field that is causing the problem
>
>
> I use transient with WicketApplication in my BasePage, but the issue
> continued.....
>
>
> private transient WicketApplication wicketApplication;
>
>
>
> Any suggestions?
> --------------------------------------------------------------------
> ----------------------------------->
> To boldly go where no man has gone before.
> --------------------------------------------------------------------
> ----------------------------------->
> We do this not because it is easy. We do this because it is hard.
> -----------------------------------------------------------------
> -------------------------------------->
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> ----------------------------------------------------------
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--
Regards - Ernesto Reinaldo Barreiro
