wu-sheng commented on issue #1080: Exception loading sessions from persistent storage URL: https://github.com/apache/incubator-skywalking/issues/1080#issuecomment-381869627 I think maybe some classes are enhanced by SkyWalking, so EnhanceRequireObjectCache was injected into the class skeleton by agent core and spring plugin. Which will cause this issue. > because I can't assess the impact on other projects What do you mean by this? You can't change the config file? The key of this issue is to find out which classes are added into the Tomcat session. And are they enhanced by SkyWalking agent? such as: some cache client object? But from my understanding, we didn't intend to enhance any classes which may be added in to session. Only exception is only if Spring bean optional plugin is active, which you said you don't. So I guess, this is an error triggered by your application wrong usage of session.
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