Change log:
5273203 Upgrade dependencies; prepare for release
a0cdfd9 Change adaptPollableChannelToPublisher to Mono
1ff69d4 GH-3175: Add .scanner() to inbound file sync spec
ede9528 Fix some tests for not closed application context
aeab030 GH-3168: Fix FtpSession warning on logout
7009f9a Fix new Sonar smells
a8c471c Fix ReactiveStreamsConsumer for error handling
6591ce9 Fix ReactiveStreamsConsumer for plain subscriber
538cfe4 GH-3172: Support consumer-side batching
867a8cf GH-3155: Add support for Java DSL extensions (#3167)
00b771d Fix NPE in the DefaultSessionFactoryLocator
edf84a3 GH-3169: DSFL: addSessionFactory based on Object
fa97ce0 AMQP: Multiple Sends within an OB Channel Adapter
509e823 Upgrade to Spring Security 5.3RC1; RSocket 1.0RC6
1d9a818 GH-3157: pop sequence for message as well
e5740f2 Upgrade dependencies
d792915 Add debug log for ReactiveStreamsConsumerTests
2f4394d Populate a JsonHeaders.RESOLVABLE_TYPE on reply (#3163)
94c8cf7 Fix new Sonar smells
34bc811 Add @LogLevels to ReactiveStreamsConsumerTests
89d86e1 GH-3154: Support UriBuilderFactory.EncodingMode (#3162)
9f07803 GH-3152: Fix for nested Scatter Gather
290c803 Fix new Sonar smell
e70fd0d Fix new Sonar smells
a9cb80a Fix some Sonar smells
bfe28db Revert NPE check in the AbstMappingMessageRouter
990294b Fix AbstractMappingMessageRouter for NPE
d2df9dd Fix Checkstyle violations
ad5496f Fix some Sonar smells
a201bde Fix new Sonar smells
cf01b7c Fix background color for code snippets in docs
be8a73f Fix typos in MongoDb components JavaDocs