Tomas Drabek

This seems to be a fixed here: https://github.com/kongchen/swagger-maven-example/pull/14 I faced the same issue which was solved by applying the fix from mentioned pull request

I think it is because _org.springframework.session.hazelcast.HazelcastIndexedSessionRepository#save_ will not take a branch `if (!session.delta.isEmpty()) {...` because it does not go reflectively through all session data, but it relies on `delta` field...