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From "Shapira, Yoav" <>
Subject RE: How to serialize an object which is put in the session ?
Date Mon, 23 Jun 2003 13:06:42 GMT


>I have a class which implements the HttpSessionBindingListener
interface. I
>want to serialize this object and all sessions when the context is

That's a pain to do.  The contextDestroyed() event in the
ServletContextListener is too late.  The sessionDestroyed() event in the
HttpSessionListener is a good place to do this for one session.  This
event will get called once for each session when the container is
shutting down, so you'd have to serialize each session separately.

>It is essential because three deveopers are using the same server and

Bad idea.  One developer per server will save you a lot of problems,
including this one.

>throwing Nullpointer exception after reload. How to know that the
>session is saved when the context is reloaded.

Use logging in the object to tell you "I'm being saved" or "I'm being

>The 4.0.3 version gves better logs.

I completely disagree with that ;)  I think every version of tomcat has
given better logs than its predecessor.

Yoav Shapira

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