The session attribute that is not serializable was found. It will be deleted. (context root = aa....aa, attribute name = bb....bb, class = cc....cc)

aa....aa: Context root name
bb....bb: Attribute name
cc....cc: Class name of the object that cannot be serialized

Description

An object (cc....cc) that cannot be serialized was found in the session attribute (bb....bb).

The corresponding attribute will be deleted.

Action

Change the object registered in the session attribute to one that can be serialized. If the session attribute is used persistently even after reload, modify the corresponding object to one that can be serialized.