I got WEB0517 during redeploy my web applcation
Description of WEB0517 follows here:
WEB0517 Unable to restore sessions for web module [{0}] from previous deployment
Cause:
An HTTP session that was supposed to survive the redeployment of the web module failed to be restored (deserialized). This can happen if an application class that was used as a session attribute has changed incompatibly
Solution:
Make sure that any application classes that are being used as session attributes change only in a compatible way during redeployments
However, this warning invokes even if I didn't modified any of the session-scoped bean
Moreover, the exception should be 'InvalidClassException', not 'NullPointerException' if I changed the session-scoped bean incompatible way.
I use Glassfish v3 and bundled
JSF library.
Server log follows here: