Hi Dale,

Wicket keeps the most recent page from each session in a deserialized
state, in addition to writing it to disk. This is an optimization since
most requests interact with only the most recent page. After restart, these
deserialized pages will not be available, forcing Wicket to restore the
page from disk. It's not really an error, and as you've observed should not
affect the user.

I don't have the code with me to verify this explanation, but I'm pretty
sure this is correct.

Dan

On Tue, May 1, 2012 at 5:19 PM, Dale Ogilvie <dale_ogil...@trimble.com>wrote:

> What does this warning from our wicket 1.4.20 app signify?
>
> WARN org.apache.wicket.protocol.http.SecondLevelCacheSessionStore
> PageMap deserialization - got nulll lastPage
>
> It seems to occur in a couple of situations:
>
> a) when the application is reloaded due to a web.xml change
> b) when restarting the tomcat instance
>
> nothing out of the ordinary is being done here, just re-loading the app.
>
> Thanks
>
> Dale
>
>
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