if you are saying the tomcat session is dropped then, two reasons could be:
1. the session cookie is dropped
2. the session has expired (been idle longer than your timeout setting)
but your stack trace show TransactionSession, and it could be that your
TransactionSession is holding a reference to the Tomcat session,
but the reference it is actually holding is a facade object, and the
facade loses it connection to the delegate, hence the facade method.
Make sure you always get your reference to the session using the servlet
API, and do NOT store a reference to it, as it is not the real session,
just a facade object.
Filip
rache wrote:
I have this error occuring when loading a jsp:
2006-07-28 17:33:01 StandardWrapperValve[debugjsp]: Servlet.service() for
servlet debugjsp threw exception
java.lang.NullPointerException
at
com.premier.ofa.core.TransactionSession.getAttribute(TransactionSession.java:34)
at
com.premier.ofa.core.TransactionRequest.getConfigurationAttribute(TransactionRequest.java:125)
at
com.premier.SignOn.UserInqAuthTaskBean.isFeatureConfigured(UserInqAuthTaskBean.java:366)
at org.apache.jsp.jsp.security_jsp._jspService(security_jsp.java:1264)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
This happens on and off. In tracking the error, sometimes the session can be
null. Why is this happening?
Anyone familiar with this kind of exception?
Thanks!
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