Wang Liyu The other issue with conversation context will be fixed in 2.2.17.Final, 2.3.0.Final and 3.0.0.Alpha14. Unfortunately, we've found the issue too late - 2.2.16 is just syncing to maven central repository. But as I wrote above - the thread-local variable is a small object with two boolean fields and no sensitive data, so the impact shouldn't be large.