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Posted to users@wicket.apache.org by Matthew Hanlon <mr...@gmail.com> on 2008/06/12 23:18:57 UTC
ValueMap, NullSafeKeyComparator and WicketNotSerializableException
I'm getting a WicketNotSerializableException on a couple of my pages. The
field that seems to be not serializable appears to be a Wicket class,
org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator. Any
suggestions? I saw a posting on the list earlier today that I though may
have something to do with it, but I cannot find the reference now.
Here's the stacktrace for the exception I'm getting:
ERROR Objects:1114 - Error serializing object class
com.mycompany.MyPage[object=[Page class = com.mycompany.MyPage, id = 3,
version = 0, ajax = 0]]
org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException:
Unable to serialize class:
org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
Field hierarchy is:
3 [class=com.mycompany.MyPage, path=3]
java.lang.Object org.apache.wicket.Component.data
[class=[Ljava.lang.Object;]
private org.apache.wicket.spring.ISpringContextLocator
org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1]
[class=[Lorg.apache.wicket.MetaDataEntry;]
private org.apache.wicket.spring.ISpringContextLocator
org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1][0]
[class=org.apache.wicket.MetaDataEntry]
java.lang.Object org.apache.wicket.MetaDataEntry.object
[class=org.apache.wicket.PageParameters]
private java.util.Comparator java.util.TreeMap.comparator
[class=org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator] <-----
field that is not serializable
at
org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:349)
at
org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
at
org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
at
org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
at
org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
at
org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
at
org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
at
org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
at
org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
at
org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:687)
at java.io.ObjectOutputStream.writeObject(Unknown Source)
at
org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:127)
at java.io.ObjectOutputStream.writeObject(Unknown Source)
at
org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1100)
at
org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:200)
at
org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:814)
at
org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:327)
at org.apache.wicket.Session.requestDetached(Session.java:1391)
at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1113)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1384)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:499)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
at
org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
at
org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
at org.mortbay.http.HttpServer.service(HttpServer.java:863)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
Caused by: java.io.NotSerializableException:
org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source)
at java.util.TreeMap.writeObject(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
--
Matthew Rollins Hanlon
http://squareoftwo.org
_____________________
Hanlon's Razor:
"Never attribute to malice that which can be adequately explained by
stupidity."
http://wikipedia.org/wiki/Hanlon's_razor<http://wikipedia.org/wiki/Hanlon%27s_razor>
Re: ValueMap, NullSafeKeyComparator and WicketNotSerializableException
Posted by Frank Bille <fr...@apache.org>.
Fixed
On Thu, Jun 12, 2008 at 11:47 PM, Frank Bille <fr...@apache.org> wrote:
> https://issues.apache.org/jira/browse/WICKET-1694
>
>
>
> On Thu, Jun 12, 2008 at 11:20 PM, Matthew Hanlon <mr...@gmail.com>
> wrote:
>
>> Sorry, forgot to mention that I'm using wicket 1.4-SNAPSHOT, rev 667063.
>>
>> On Thu, Jun 12, 2008 at 4:18 PM, Matthew Hanlon <mr...@gmail.com>
>> wrote:
>>
>> > I'm getting a WicketNotSerializableException on a couple of my pages.
>> The
>> > field that seems to be not serializable appears to be a Wicket class,
>> > org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator. Any
>> > suggestions? I saw a posting on the list earlier today that I though
>> may
>> > have something to do with it, but I cannot find the reference now.
>> >
>> > Here's the stacktrace for the exception I'm getting:
>> >
>> > ERROR Objects:1114 - Error serializing object class
>> > com.mycompany.MyPage[object=[Page class = com.mycompany.MyPage, id = 3,
>> > version = 0, ajax = 0]]
>> >
>> org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException:
>> > Unable to serialize class:
>> > org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
>> > Field hierarchy is:
>> > 3 [class=com.mycompany.MyPage, path=3]
>> > java.lang.Object org.apache.wicket.Component.data
>> > [class=[Ljava.lang.Object;]
>> > private org.apache.wicket.spring.ISpringContextLocator
>> > org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1]
>> > [class=[Lorg.apache.wicket.MetaDataEntry;]
>> > private org.apache.wicket.spring.ISpringContextLocator
>> > org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1][0]
>> > [class=org.apache.wicket.MetaDataEntry]
>> > java.lang.Object org.apache.wicket.MetaDataEntry.object
>> > [class=org.apache.wicket.PageParameters]
>> > private java.util.Comparator java.util.TreeMap.comparator
>> > [class=org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator]
>> <-----
>> > field that is not serializable
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:349)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
>> > at
>> >
>> org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:687)
>> > at java.io.ObjectOutputStream.writeObject(Unknown Source)
>> > at
>> >
>> org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:127)
>> > at java.io.ObjectOutputStream.writeObject(Unknown Source)
>> > at
>> > org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1100)
>> > at
>> >
>> org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:200)
>> > at
>> >
>> org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:814)
>> > at
>> >
>> org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:327)
>> > at org.apache.wicket.Session.requestDetached(Session.java:1391)
>> > at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1113)
>> > at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1384)
>> > at org.apache.wicket.RequestCycle.request(RequestCycle.java:499)
>> > at
>> >
>> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
>> > at
>> >
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
>> > at
>> >
>> org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
>> > at
>> >
>> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
>> > at
>> >
>> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
>> > at
>> >
>> org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
>> > at
>> >
>> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)
>> > at
>> > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>> > at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>> > at
>> >
>> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507)
>> > at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>> > at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>> > at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>> > at
>> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>> > at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>> > at
>> >
>> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>> > at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>> > at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
>> > Caused by: java.io.NotSerializableException:
>> > org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
>> > at java.io.ObjectOutputStream.writeObject0(Unknown Source)
>> > at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
>> > at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source)
>> > at java.util.TreeMap.writeObject(Unknown Source)
>> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> >
>> > --
>> > Matthew Rollins Hanlon
>> > http://squareoftwo.org
>> > _____________________
>> > Hanlon's Razor:
>> > "Never attribute to malice that which can be adequately explained by
>> > stupidity."
>> > http://wikipedia.org/wiki/Hanlon's_razor<
>> http://wikipedia.org/wiki/Hanlon%27s_razor>
>>
>>
>>
>>
>> --
>> Matthew Rollins Hanlon
>> http://squareoftwo.org
>> _____________________
>> Hanlon's Razor:
>> "Never attribute to malice that which can be adequately explained by
>> stupidity."
>> http://wikipedia.org/wiki/Hanlon's_razor
>>
>
>
Re: ValueMap, NullSafeKeyComparator and WicketNotSerializableException
Posted by Frank Bille <fr...@apache.org>.
https://issues.apache.org/jira/browse/WICKET-1694
On Thu, Jun 12, 2008 at 11:20 PM, Matthew Hanlon <mr...@gmail.com> wrote:
> Sorry, forgot to mention that I'm using wicket 1.4-SNAPSHOT, rev 667063.
>
> On Thu, Jun 12, 2008 at 4:18 PM, Matthew Hanlon <mr...@gmail.com>
> wrote:
>
> > I'm getting a WicketNotSerializableException on a couple of my pages.
> The
> > field that seems to be not serializable appears to be a Wicket class,
> > org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator. Any
> > suggestions? I saw a posting on the list earlier today that I though may
> > have something to do with it, but I cannot find the reference now.
> >
> > Here's the stacktrace for the exception I'm getting:
> >
> > ERROR Objects:1114 - Error serializing object class
> > com.mycompany.MyPage[object=[Page class = com.mycompany.MyPage, id = 3,
> > version = 0, ajax = 0]]
> >
> org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException:
> > Unable to serialize class:
> > org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
> > Field hierarchy is:
> > 3 [class=com.mycompany.MyPage, path=3]
> > java.lang.Object org.apache.wicket.Component.data
> > [class=[Ljava.lang.Object;]
> > private org.apache.wicket.spring.ISpringContextLocator
> > org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1]
> > [class=[Lorg.apache.wicket.MetaDataEntry;]
> > private org.apache.wicket.spring.ISpringContextLocator
> > org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1][0]
> > [class=org.apache.wicket.MetaDataEntry]
> > java.lang.Object org.apache.wicket.MetaDataEntry.object
> > [class=org.apache.wicket.PageParameters]
> > private java.util.Comparator java.util.TreeMap.comparator
> > [class=org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator]
> <-----
> > field that is not serializable
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:349)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
> > at
> >
> org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:687)
> > at java.io.ObjectOutputStream.writeObject(Unknown Source)
> > at
> >
> org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:127)
> > at java.io.ObjectOutputStream.writeObject(Unknown Source)
> > at
> > org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1100)
> > at
> >
> org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:200)
> > at
> >
> org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:814)
> > at
> >
> org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:327)
> > at org.apache.wicket.Session.requestDetached(Session.java:1391)
> > at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1113)
> > at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1384)
> > at org.apache.wicket.RequestCycle.request(RequestCycle.java:499)
> > at
> > org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
> > at
> >
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
> > at
> >
> org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
> > at
> >
> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
> > at
> >
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
> > at
> >
> org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
> > at
> >
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)
> > at
> > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
> > at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
> > at
> >
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507)
> > at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
> > at org.mortbay.http.HttpServer.service(HttpServer.java:863)
> > at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
> > at
> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
> > at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
> > at
> > org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
> > at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
> > at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> > Caused by: java.io.NotSerializableException:
> > org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
> > at java.io.ObjectOutputStream.writeObject0(Unknown Source)
> > at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
> > at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source)
> > at java.util.TreeMap.writeObject(Unknown Source)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> >
> > --
> > Matthew Rollins Hanlon
> > http://squareoftwo.org
> > _____________________
> > Hanlon's Razor:
> > "Never attribute to malice that which can be adequately explained by
> > stupidity."
> > http://wikipedia.org/wiki/Hanlon's_razor<
> http://wikipedia.org/wiki/Hanlon%27s_razor>
>
>
>
>
> --
> Matthew Rollins Hanlon
> http://squareoftwo.org
> _____________________
> Hanlon's Razor:
> "Never attribute to malice that which can be adequately explained by
> stupidity."
> http://wikipedia.org/wiki/Hanlon's_razor
>
Re: ValueMap, NullSafeKeyComparator and WicketNotSerializableException
Posted by Matthew Hanlon <mr...@gmail.com>.
Sorry, forgot to mention that I'm using wicket 1.4-SNAPSHOT, rev 667063.
On Thu, Jun 12, 2008 at 4:18 PM, Matthew Hanlon <mr...@gmail.com> wrote:
> I'm getting a WicketNotSerializableException on a couple of my pages. The
> field that seems to be not serializable appears to be a Wicket class,
> org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator. Any
> suggestions? I saw a posting on the list earlier today that I though may
> have something to do with it, but I cannot find the reference now.
>
> Here's the stacktrace for the exception I'm getting:
>
> ERROR Objects:1114 - Error serializing object class
> com.mycompany.MyPage[object=[Page class = com.mycompany.MyPage, id = 3,
> version = 0, ajax = 0]]
> org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException:
> Unable to serialize class:
> org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
> Field hierarchy is:
> 3 [class=com.mycompany.MyPage, path=3]
> java.lang.Object org.apache.wicket.Component.data
> [class=[Ljava.lang.Object;]
> private org.apache.wicket.spring.ISpringContextLocator
> org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1]
> [class=[Lorg.apache.wicket.MetaDataEntry;]
> private org.apache.wicket.spring.ISpringContextLocator
> org.apache.wicket.spring.SpringBeanLocator.springContextLocator[1][0]
> [class=org.apache.wicket.MetaDataEntry]
> java.lang.Object org.apache.wicket.MetaDataEntry.object
> [class=org.apache.wicket.PageParameters]
> private java.util.Comparator java.util.TreeMap.comparator
> [class=org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator] <-----
> field that is not serializable
> at
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:349)
> at
> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
> at
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
> at
> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
> at
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
> at
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
> at
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
> at
> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
> at
> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
> at
> org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:687)
> at java.io.ObjectOutputStream.writeObject(Unknown Source)
> at
> org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:127)
> at java.io.ObjectOutputStream.writeObject(Unknown Source)
> at
> org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1100)
> at
> org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:200)
> at
> org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:814)
> at
> org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:327)
> at org.apache.wicket.Session.requestDetached(Session.java:1391)
> at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1113)
> at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1384)
> at org.apache.wicket.RequestCycle.request(RequestCycle.java:499)
> at
> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
> at
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
> at
> org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
> at
> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
> at
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
> at
> org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
> at
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
> at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
> at
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507)
> at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
> at org.mortbay.http.HttpServer.service(HttpServer.java:863)
> at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
> at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
> at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
> at
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
> at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
> at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: java.io.NotSerializableException:
> org.apache.wicket.util.value.ValueMap$NullSafeKeyComparator
> at java.io.ObjectOutputStream.writeObject0(Unknown Source)
> at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
> at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source)
> at java.util.TreeMap.writeObject(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>
> --
> Matthew Rollins Hanlon
> http://squareoftwo.org
> _____________________
> Hanlon's Razor:
> "Never attribute to malice that which can be adequately explained by
> stupidity."
> http://wikipedia.org/wiki/Hanlon's_razor<http://wikipedia.org/wiki/Hanlon%27s_razor>
--
Matthew Rollins Hanlon
http://squareoftwo.org
_____________________
Hanlon's Razor:
"Never attribute to malice that which can be adequately explained by
stupidity."
http://wikipedia.org/wiki/Hanlon's_razor