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If the session object null means, session is already expired or not yet initiated. After clicking the link that invokes my jsp page, it redirects me to the given url... page1------------ Attribute("something","somevalue"); now in your executing jsp page apply a check on the attribute As per my knowledge in a jsp page session object can never be null, because if you look at the _jsp Service method of servlet(jsp compiled servlet) the following line of code gets executed session = page Session(); means your session object is not null.Use invalidate() method on session object to invalidate a session if the session object is not null. As per my knowledge in a jsp page session object can never be null, because if you look at the _jsp Service method of servlet(jsp compiled servlet) the following line of code gets executed session = page Session(); means your session object is not null.If desired, set the session to time out after being inactive for a defined time period, or invalidate it manually.You can also bind objects to the session, which store them for use by other components.programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Products This Site Careers Other all forums Hi All, I have got a task to perform in my jsp page.
And Servlet Util.invalidatesession() methods are deprecated,so try not to use them for invalidation.Lets understand this with the help of an example: In the below example we have three jsp pages.Output: while opening display page, all the attributes are getting displayed on client (browser).Direct the session to invalidate itself automatically after being inactive for a defined time period.We have already seen invalidate() method in session implicit object tutorial. Here we will see how to validate/invalidate a session.Additionally, calling the method with a Boolean argument creates a session only if the argument is Returns a Boolean value indicating if the session is new.