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https://issues.apache.org/jira/browse/WICKET-6166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15294985#comment-15294985
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Martin Grigorov commented on WICKET-6166:
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I am hesitant to do any changes here.
WicketObjects.sizeof() detaches the passed Component but only after making a
clone of it. If we detach the original page then many other things might break,
e.g. see WICKET-4867.
I'd recommend you to use custom component, e.g. Label, that detaches the page
before passing it to WicketObjects.sizeof() if this doesn't break your
application.
> JavaSerializer using CheckingObjectOutputStream fails in conjunction with
> PageSizeDebugPanel
> --------------------------------------------------------------------------------------------
>
> Key: WICKET-6166
> URL: https://issues.apache.org/jira/browse/WICKET-6166
> Project: Wicket
> Issue Type: Bug
> Affects Versions: 7.2.0
> Reporter: Michael Day
> Priority: Minor
>
> I've overridden JavaSerializer in the following way. When my application is
> in development mode, the PageSizeDebugPanel attempts to serialize my
> components to calculate their size. Unfortunately it does this before
> detach() has been called, so of course the NotDetachedModelChecker() fails.
> {code}
> JavaSerializer serializer = new JavaSerializer(getApplicationKey()) {
> @Override
> protected ObjectOutputStream newObjectOutputStream(OutputStream out)
> throws IOException {
> List<IObjectChecker> checkers = Lists.newArrayList(
> new NotDetachedModelChecker(),
> new ObjectSerializationChecker());
> return new CheckingObjectOutputStream(out, checkers.toArray(new
> IObjectChecker[checkers.size()]));
> }
> };
> {code}
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