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session attributes disappearing mysteriously

 
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Hello All,

I have a regular struts application that I am refactoring. I am setting a few attributes into session in an action class.

objHttpRequest.getSession().setAttribute("reportsDate", strWebReportDate);

The control than flows to the business classes, hits the DB and returns back to load a jsp. In the jsp when I try to read those variables, I get a null pointer exception.

String strReportDate = (String)session.getAttribute("reportsDate");

Does any body have any idea, what could be the possible reasons. I have checked that the values are not being reset nor is their any session.invalidate() call.
 
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Is it possible that strWebReportDate is null when you call setAttribute?

- Brent
 
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