resin, persist session and spring

[sancho]

Hi I have strange problem with my application running on resin. I'm using persistent session and from time to time resin invalidates user's session object
No idea why this happens!

The problem is in
Store.java from resin (2.1.14, 2.1.16, 2.1.17)

in this part:

if (updateCount <= oldUpdateCount) {
in.close();

if (dbg.canWrite() && updateCount != oldUpdateCount)
dbg.log("distributed store: obsolete " + object);

return updateCount == oldUpdateCount;
}

for some reason updateCount is not equal to oldUpdateCount ? Any idea why ?
All objects on session are serializable
Desperately need some help.

[Costin Leau]

How does this relate to Spring? Does spring in any way intervene with Resin?