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SAPNoClassDefFoundError: javax.servlet.http.HttpSessionListener

Hi,

I have deployed an application in to Netweaver WAS, and have given a hard reference to one of the libraries which is already deployed in the same server. But when starting the application, it gives an error telling that <b><i>javax.servlet.http.HttpSessionListener</i></b> is not available. I gave the servlet.jar in the classpath and still its giving the same error.

Can anyone tell me what can i do to get rid of this problem? This is the error message iam getting in the defaulttrace file:

<b><i>The error is: com.sap.engine.frame.core.load.SAPNoClassDefFoundError: javax.servlet.http.HttpSessionListener</i></b>

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