The servlet spec disallows any writing of headers after an include has been issued.
This commit intercepts the include and commits the session, then
allowing the include to proceed.
See: #1250
JdbcOperationsSessionRepository recently introduced validation when inserting new session attributes in order to prevent data integrity violations in highly concurrent environments. This is done by using INSERT INTO ... SELECT statement to verify existence of session record in parent table. Such arrangement causes problems with Oracle if inserted attribute is of size 4 kb or more.
This commit enhances JdbcHttpSessionConfiguration to detect Oracle database is used, and set createTemporaryLob option on default LobHandler to true.
Resolves: #1212
At present, the insert of new attributes in JdbcOperationsSessionRepository is done unconditionally. This can cause data integrity violation errors with concurrent requests, where one request attempts to add new session attribute while the other, concurrent request, deletes the session.
This commit addresses the described scenario by executing insert of new attributes conditionally on presence of parent record.
Closes gh-1153
This commit improves support for use of Spring Session with Hazelcast's client-server topology by ensuring SessionUpdateEntryProcessor is easier to serialize to the cluster. This is done by refactoring SessionUpdateEntryProcessor from static inner class of HazelcastSessionRepository to a dedicated class, therefore minimizing the dependencies to other Spring Session components.
Closes gh-1130
Currently, Session#getAttributeNames implementations, by delegating to MapSession, all return a session attribute map's key set. This causes ConcurrentModificationException when an attempt to modify session attributes is made while iterating over the returned attribute names.
Closes gh-1129
Previously, SessionResultSetExtractor used JdbcSession.setAttribute which had a side effect of freshly loaded session potentially having a non-empty delta and/or changed flag set. This commit optimizes session retrieval to invoke setAttribute directly on the delegate, therefore preventing unnecessary modifications of delta and change flags.
Closes gh-1053
