DynamoHttpServletRequest becoming null

Hi,
We are getting null pointer error because of DynamoHttpServletRequest becoming null. Any clue on what scenario request leak can happen in ATG. We are using ATG10.1.2.
Also in logs I can see following warning before I encounter null request.
atg.servlet.ServletUtil Detected currentRequest leak. Set trackSetCurrentRequest to true to debug this issue.
I do not see any extra errors in the logs.

as Shaik suggested check your web.xml it should have Filter and Filter url pattern mapping for example
<filter>
<filter-name>PageFilter</filter-name>
<filter-class>atg.filter.dspjsp.PageFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>PageFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>

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    Stephane
    Edited by: drahuks on 9 mai 2011 01:32

    Frank,
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         at oracle.adfinternal.view.faces.model.AdfELResolver.setValue(AdfELResolver.java:132)
         at javax.el.CompositeELResolver.setValue(CompositeELResolver.java:283)
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         at com.sun.faces.el.DemuxCompositeELResolver.setValue(DemuxCompositeELResolver.java:278)
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         at org.apache.myfaces.trinidad.component.UIXEditableValue.updateModel(UIXEditableValue.java:289)
         at org.apache.myfaces.trinidad.component.UIXEditableValue.processUpdates(UIXEditableValue.java:252)Stephane
    Edited by: drahuks on 10 mai 2011 04:09

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