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https://issues.apache.org/jira/browse/WICKET-2075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Johan Compagner closed WICKET-2075.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 1.4.8
         Assignee: Johan Compagner  (was: Matej Knopp)

fixed it by adding some try/catch/finally blocks to make sure the pagemap is 
released

> Pagemap is locked forever with some Page serialization exceptions
> -----------------------------------------------------------------
>
>                 Key: WICKET-2075
>                 URL: https://issues.apache.org/jira/browse/WICKET-2075
>             Project: Wicket
>          Issue Type: Bug
>          Components: wicket
>    Affects Versions: 1.3.5
>            Reporter: Alex
>            Assignee: Johan Compagner
>             Fix For: 1.4.8
>
>
> There was a serialization problem with one of the components that was causing 
> the pagemap to become locked forever.
> 2009-02-04 19:43:57,147 [ERROR] [WebServerPool0-0] 
> org.apache.wicket.RequestCycle[]: there was an error detaching the request 
> from the session ...
> java.lang.ExceptionInInitializerError
>       at org/apache/wicket/util/io/IObjectStreamFactory$2.writeObjectOverride 
> (IObjectStreamFactory.java:121)
>       at java/io/ObjectOutputStream.writeObject (Unknown Source)
>       at org/apache/wicket/util/lang/Objects.objectToByteArray 
> (Objects.java:1092)
>       at 
> org/apache/wicket/protocol/http/pagestore/AbstractPageStore.serializePage 
> (AbstractPageStore.java:197)
>       at org/apache/wicket/protocol/http/pagestore/DiskPageStore.storePage 
> (DiskPageStore.java:811)
>       at 
> org/apache/wicket/protocol/http/SecondLevelCacheSessionStore$SecondLevelCachePageMap.put
>  (SecondLevelCacheSessionStore.java:333)
>       at org/apache/wicket/Session.requestDetached (Session.java:1371)
>       at org/apache/wicket/RequestCycle.detach (RequestCycle.java:1091)
>       at org/apache/wicket/RequestCycle.steps (RequestCycle.java:1375)
>       at org/apache/wicket/RequestCycle.request (RequestCycle.java:494)
>       at org/apache/wicket/protocol/http/WicketFilter.doGet 
> (WicketFilter.java:357)
>       at org/apache/wicket/protocol/http/WicketFilter.doFilter 
> (WicketFilter.java:200)
>       at org/mortbay/jetty/servlet/ServletHandler$CachedChain.doFilter 
> (ServletHandler.java:1116)
>       at com/videoiq/fusion/camera/webserver/ThrottlingFilter.doFilter 
> (ThrottlingFilter.java:75)
>       at com/videoiq/fusion/camera/webserver/ThrottlingFilter.doFilter 
> (ThrottlingFilter.java:53)
>       at org/mortbay/jetty/servlet/ServletHandler$CachedChain.doFilter 
> (ServletHandler.java:1116)
>       at org/mortbay/jetty/servlet/ServletHandler.handle 
> (ServletHandler.java:361)
>       at org/mortbay/jetty/security/SecurityHandler.handle 
> (SecurityHandler.java:217)
>       at org/mortbay/jetty/servlet/SessionHandler.handle 
> (SessionHandler.java:182)
>       at org/mortbay/jetty/handler/ContextHandler.handle 
> (ContextHandler.java:776)
>       at org/mortbay/jetty/webapp/WebAppContext.handle 
> (WebAppContext.java:418)
>       at com/videoiq/fusion/camera/webserver/RedirectHandler.handle 
> (RedirectHandler.java:46)
>       at org/mortbay/jetty/handler/HandlerCollection.handle 
> (HandlerCollection.java:129)
>       at org/mortbay/jetty/handler/HandlerWrapper.handle 
> (HandlerWrapper.java:153)
>       at org/mortbay/jetty/Server.handle (Server.java:325)
>       at org/mortbay/jetty/HttpConnection.handleRequest 
> (HttpConnection.java:536)
>       at org/mortbay/jetty/HttpConnection$RequestHandler.headerComplete 
> (HttpConnection.java:865)
>       at org/mortbay/jetty/HttpParser.parseNext (HttpParser.java:539)
>       at org/mortbay/jetty/HttpParser.parseAvailable (HttpParser.java:212)
>       at org/mortbay/jetty/HttpConnection.handle (HttpConnection.java:404)
>       at org/mortbay/jetty/bio/SocketConnector$Connection.run 
> (SocketConnector.java:228)
>       at 
> com/videoiq/fusion/camera/webserver/WebServerThreadPool$PoolThread.run 
> (WebServerThreadPool.java:476)
> Caused by: java.lang.RuntimeException: java.lang.NoSuchMethodException: 
> java/io/ObjectStreamClass.lookup
>       at org/apache/wicket/util/io/SerializableChecker.<clinit> 
> (SerializableChecker.java:261)
>       ... 32 more
> Caused by: java.lang.NoSuchMethodException: java/io/ObjectStreamClass.lookup
>       at java/lang/Class.getDeclaredMethod (Unknown Source)
>       at org/apache/wicket/util/io/SerializableChecker.<clinit> 
> (SerializableChecker.java:226)
>       ... 32 more

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