In the previous post, I tried to provide justification for our shift to a functional programming model in Spring Cloud Stream (SCSt). It's less code, less configuration. Most importantly, though, your code is completely decoupled and independent from the internals of SCSt.

In this post, I’ll dig a little deeper and summarize the core features of our functional support, specifically around its reactive features.

IMPORTANT: Anything you can do with @StreamListener/@EnableBinding you can also do without it. In other words, the functional support is now feature-compatible with the annotation-based support.

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I’m pleased to announce the releases of Spring Security OAuth 2.3.7, 2.2.6, 2.1.6 and 2.0.19. These maintenance releases primarily deliver bug fixes and minor enhancements.

For a complete list of changes, please refer to:

• 2.3.7 changelog

• 2.2.6 changelog

• 2.1.6 changelog

• 2.0.19 changelog

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On behalf of the Spring Boot team and everyone that has contributed, I am delighted to announce that Spring Boot 2.2.0 has been released and is available now from repo.spring.io, Maven Central and Bintray. This release adds a significant number of new features and improvements. For full upgrade instructions and new and noteworthy features please see the release notes.

What's new in 2.2

Dependency upgrades

Spring Boot 2.2 moves to new versions of several Spring projects:

• Spring AMQP 2.2
• Spring Batch 4.2
• Spring Data Moore
• Spring Framework 5.2
• Spring HATEOAS 1.0
• Spring Integration 5.2
• Spring Kafka 2.3
• Spring Security 5.2
• Spring Session Corn
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Hi, Spring fans! WHEW! What a week! Last week was the insane SpringOne Platform 2019 event, from which I am still recovering! Then I flew home, hosted Spring team member and Micrometer lead and friend Tommy Ludwig in San Francisco, and prepared to fly out for meetings and user group appearances on Monday (in Stuttgart, Germany) and Tuesday (in Amsterdam).

I prepared, and got into the Uber going to San Francisco airport when I got a call from my brother saying my 81-year-old dad wasn't doing well (thanks to everyone for the well-wishes!) and was rushed to the hospital. I had to, regretfully…

Event driven architecture is great. But without a framework, writing the scaffolding required to work with popular event messaging platforms can be messy. In this post we'll take a look at how Spring Cloud Stream can be used to simplify your code.

The Problem

You just want to write logic for your event driven application, but the boilerplate messaging code can get in the way. Connecting your apps to messaging services is tricky, and if you're an enterprise developer, you probably need to work with multiple messaging technologies (either on-premises or in the cloud).

The Solution

Let a flexible messaging abstraction take care of the complex messaging platform integration so you can concentrate on writing simple clean business logic. Spring Cloud Stream is a great candidate. It unifies lots of popular messaging platforms behind one easy to use API including RabbitMQ, Apache Kafka, Amazon Kinesis, Google PubSub, Solace PubSub+, Azure Event Hubs, and Apache RocketMQ. It even smoothes away any subtle…

On behalf of the team and everyone who has contributed, I’m happy to announce that Spring Initializr 0.8.0 has been released and is now available from repo.spring.io. For the first time, the release is also available from Maven Central!

This release includes 90 fixes, improvements and dependency upgrades. Thanks to all those who have contributed with issue reports and pull requests.

Spring Initializr 0.8 brings a complete rewrite of the project generation API with dedicated abstractions for common assets of JVM-based projects:

• Build systems with dedicated support for Apache Maven and Gradle (both Groovy and Kotlin DSLs).
• Languages with basic model and writer support for Java, Kotlin, and Groovy.
• High-level hook-point to tune the project structure with several convenient implementations.
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This is the first post in a series of blog posts meant to clarify and preview what's coming in the upcoming releases of spring-cloud-stream and spring-cloud-function (both 3.0.0).

Recently, I had a discussion with a user and heard something that prompted me to begin a series of blog posts (starting with this one) with the goal of both demystifying the true goals of Spring Cloud Stream and Spring Cloud Function projects as well as demonstrating their new features.

Spring Integration Wrapper?

The specific phrase that prompted all this was - "Spring Cloud Stream, being a light Spring Integration input/output router. . .”. That's an interesting perception, but I have to disagree. While it may have been inspired by Enterprise Integration Patterns (EIP) and builds on top of Spring Integration (SI), that last part is really just an implementation detail. Spring Cloud Stream (SCSt) as a framework was never about "being a light Spring Integration input/output router"…

Hi, Spring fans! In this SpringOne Platform 2019 episode, Josh Long (@starbuxman) interviews Spring mad scientist Andy Clement (@andy_clement) on AspectJ, SpEL, Eclipse, the new Graal native image feature, being an Iron-Man triathlete, and more.

• Andy Clement on Twitter
• the Spring Expression Language
• AspectJ
• the Graal native image feature

Spring Data Moore ships with 16 modules and over 700 tickets completed. It includes tons of improvements and new features across the portfolio and has a strong focus on three major topics: Reactive, Kotlin, and Performance. The release adds features such as declarative reactive transactions and Coroutines/Flow support and comes with up to 60%* faster finder methods.

Let’s start with a look at some of the Reactive features of Moore.

Declarative, reactive transactions

The Lovelace Release introduced early support for reactive transactions in a closure-fashioned style that left some room for…