This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Hi All I m using javawebserver2.0 trial version I m using HttpSession object for session tracking in which I put a vector in my first servlet where i create this session through this servlet i popup a jsp through a hyperlink and after entering some values in input fields of that JSP i add those values in a vector and add that vector to the vector which i put in session object in the first servlet Now on submit button of jsp i call another servlet in which i try to retrive values of the session vector . Problem i am facing is that on first time whenever i load my first servlet and reach to last servlet via JSP it always give nullpointerexception but if i refresh the browser and reload the first servlet it starts working fine Can anyone pls give me a hint where i may be wrong
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