Exception explanation

[Mario Giammarco]

What does it mean:

Caused by: java.lang.IllegalStateException: Components can no  longer be added

at org.apache.wicket.page.PartialPageUpdate.assertNotFrozen(PartialPageUpdate.java:781) [wicket-core-7.1.0.jar:7.1.0]

at org.apache.wicket.page.PartialPageUpdate.assertComponentsNotFrozen(PartialPageUpdate.java:774) [wicket-core-7.1.0.jar:7.1.0]

at org.apache.wicket.page.PartialPageUpdate.add(PartialPageUpdate.java:388) [wicket-core-7.1.0.jar:7.1.0]

at org.apache.wicket.ajax.AjaxRequestHandler.add(AjaxRequestHandler.java:238) [wicket-core-7.1.0.jar:7.1.0]

at org.apache.wicket.ajax.AjaxRequestHandler.add(AjaxRequestHandler.java:231) [wicket-core-7.1.0.jar:7.1.0]

at de.invesdwin.nowicket.generated.guiservice.internal.SessionGuiService$5.component(SessionGuiService.java:121) ~[classes/:na]

at de.invesdwin.nowicket.generated.guiservice.internal.SessionGuiService$5.component(SessionGuiService.java:116) ~[classes/:na]

at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:144) ~[wicket-util-7.1.0.jar:7.1.0]

at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:123) ~[wicket-util-7.1.0.jar:7.1.0]

at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:192) ~[wicket-util-7.1.0.jar:7.1.0]

at org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:891) [wicket-core-7.1.0.jar:7.1.0]

at de.invesdwin.nowicket.generated.guiservice.internal.SessionGuiService.updateAllComponents(Session

I get nothing where it used to be a list of items

[sub es]

Hi Mario,

you can ignore this exception. It has no impact on the usability. Sadly there is no flag to check before adding the components (if it is too late to so), so we have to handle the exception somehow.

I have just changed the code to log this message into debug instead of warn level. Thus it should normally not be printed anymore.

Best regards

Edwin

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[Mario Giammarco]

I would like to ignore it but I get a paginated list empty

[Edwin Stang]

Hmm, normally this happens when the update of the components is requested too late.

If you provide some way to reproduce the problem, I could look into it.

Best regards,
Edwin

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[Edwin Stang]

Since the the exception might help in debugging such problems, I changed the code again to log a short message about this happening. When debug is enabled, a longer stacktrace will be shown.

[Mario Giammarco]

I have found the problem. I have a columnOrder() that was working perfectly some days ago. Now if I comment it I get all columns, if I uncomment it I get no columns.

I dig further trying to change columns.

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