Getting below error at times, looks like its coming from usage of apache
common LRUMAa class, not sure where to start fixing this.
15 Jul 2013 11:03:42.099 [http-apr--exec-3] ERROR
o.a.w.serialize.java.JavaSerializer - error writing object [Page class =
com.abc.xyz.web.HomePage, id = 5, rende
Hi,
Wicket doesn't use commons collections - check which maps you pass into
components or models.
Sven
On 07/15/2013 05:55 PM, saty wrote:
Getting below error at times, looks like its coming from usage of apache
common LRUMAa class, not sure where to start fixing this.
15 Jul 2013 11:03:42.
Thanks, but could you please explain how wicket handles serialization of
objects that could throw this error.
I could be wrong but it appears to me wicket is iterating the data structure
for its serialization efforts when its being modified by other threads as
well and the iteration results in Con
Wicket serializes access to each page instance, but provides no further
synchronization. Non-transient references to application data must be
synchronized by you.
On Tue, Jul 16, 2013 at 2:39 PM, saty wrote:
> Thanks, but could you please explain how wicket handles serialization of
> objects th
LRUMap is not synchronized and is not thread-safe, you must use appropriate
synchronization.
see
http://commons.apache.org/proper/commons-collections//javadocs/api-3.2.1/org/apache/commons/collections/map/LRUMap.html
François Meillet
Formation Wicket - Développement Wicket
Le 17 juil. 201
I need to understand what and when Wicket tries to serialize stuff in a
running wicket application. I am not able to fix this error and it keeps
growing with more users starting to use the application. It does not affect
the application usage but it keeps beaming error email.
I am using LRU map to
IMHO nothing in Application is serialized. But its far to easy to leak
an instance of this LRU-Map into some components (anon classes).
Can you provide some code or error message?
Am 06.08.13 18:22, schrieb saty:
I need to understand what and when Wicket tries to serialize stuff in a
running w
I'd use a debugger to look for live references to the map. In Eclipse, if
you right-click the variable line in the Variables view, there is an All
References option. The trick is instantiating the offending Wicket
component to create the reference. But once created it should stick around
at least u
Thanks Mike,
This is the complete exception trace, thanks for your help. It does appear
that this is thrown when wicket trying to serialize page.
06 Aug 2013 13:30:20.917 [http-apr--exec-3] ERROR
o.a.w.serialize.java.JavaSerializer - Error serializing object class
com.a.b.web.HomePage [objec
Ok.. To explain the scenario, i have a singleton data-maanger java class that
user a underlying LRUMAP to store most recently viewed data. various wicket
panels use this data-manager to request data that they need to
display/update etc.
Access to data is well protected using various synchronizatio
There isn't much information in that stack. Why don't you subclass LRUMap
with a custom writeObject() implementation? Then you can breakpoint it, log
from it, and maybe throw NotSerializableException to trigger Wicket
SerializableChecker which gives nicer output. That way it triggers every
time the
Hi,
Wicket 6.x has org.apache.wicket.core.util.objects.checker.IObjectChecker.
You may create your own one that doesn't allow serialization of LRUMap.
When such object is passed to ObjectOutputStream it will throw an exception
with nice message explaining the reference to this LRUMap.
This way you
Ok, thank you all.
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Am 06.08.13 20:03, schrieb saty:
...various wicket
panels use this data-manager to request data that they need to
display/update etc.
I think it matters how you acces this data-manager from your panels. If
you use something like this:
Application.get().dataManager().doSomething(bla)
you shoul
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