Wow! It's already almost October! This year has sure gone by quickly!

Welcome to another installment of This Week in Spring! This week I'm in the studio with Phil Webb recording the next installment of our Livelessons series on building Microservices with Spring Boot. It's been a lot of fun so far and we've only just begun!

Tonight, I hope you'll join me for Cloud Native Java on the vJUG's worldwide and live event going on in timezones all around the world!

We've got so much to cover, so let's get to it!

• Spring lead Juergen Hoeller just announced Spring Framework 5.0.M2, another major step on the journey to Spring 5! This release includes the functional endpoint mechanism for Spring MVC, as well!
• Hurray! Reactor 3.0 is out! Get the latest bits and see why Reactor underpins Spring Framework 5's Reactive Runtime
• Check out Spring reactive ninja Arjen Poutsma's new look at the functional endpoint mechanism in Spring Framework 5
• Spring Cloud ninja Spencer Gibb has just announced Spring Cloud Camden.RELEASE and Spring Cloud Brixton.SR6! Spring Cloud Camden is packed…

On behalf of the team, I am excited to announce the General Availability of Spring Cloud Data Flow for Apache Mesos 1.0.

Spring Cloud Data Flow for Apache Mesos provides support for orchestrating long-running (streaming) and short-lived (task/batch) data microservices on Apache Mesos. We launch stream apps using Application Groups on Marathon and tasks as Chronos one-time jobs. The release includes a template JSON script for deploying the Spring Cloud Data Flow server on Marathon. We also include sample scripts for deploying Redis, MySQL and Rabbit MQ on Marathon to be used for testing a…

Recorded at SpringOne Platform 2016.
Speakers: Craig Walls; Spring Social Lead, Pivotal. Roy Clarkson; Spring Mobile Lead, Pivotal. Slides: http://www.slideshare.net/Pivotal/cloud-native-java-with-spring-cloud-services-64888067

Developing cloud native applications presents several challenges. How do microservices discover each other? How do you configure them? How can you make them resilient to failure? How can you monitor the health of each microservice?

Spring Cloud addresses all of these concerns. Even so, you still must explicitly develop your own discovery server, configuration server…

Recorded at SpringOne Platform 2016. Speaker: Rossen Stoyanchev Slides: http://www.slideshare.net/SpringCentral/spring-mvc-4-web-apps

Spring Framework 4.3 is the last in the 4.x generation and it brings plenty of refinements to the @MVC programming model. In Spring Framework 5.0 the same programming model will be supported on a new reactive foundation. This talk will review the main features in 4.x and preview the work towards Spring Framework 5.0.

On behalf of the team, I am happy to announce the general availability of the Spring Cloud Camden Release Train along with Service Release 6 of Brixton. Camden.RELEASE can be found in our Spring Release repository. You can check out the Camden release notes for more information. Brixton.SR6 is largely a bug-fix release and is recommended for use with the Brixton Release Train.

Highlights of the Camden Release Train

Spring Cloud Contract is a new project that provides support for Consumer Driven Contracts and service schemas in Spring applications. Spring Cloud Netflix supports customization of Ribbon component classes via properties, uses the new community-maintained OpenFeign and includes various fixes and improvements to Zuul. Spring Cloud Consul adds support for Spring Cloud Bus using Consul's event API. The CLI adds a spring cloud…

On behalf of the team, I am happy to announce the general availability of the Spring Cloud Contract in version 1.0.0.RELEASE. You can download it from Spring Release or Maven Central. The reference documentation is available here. The release notes are available here.

What is Spring Cloud Contract for? What you always need is confidence in pushing new features into a new application or service in a distributed system. Spring Cloud Contract project provides support for Consumer Driven Contracts and service schemas in Spring applications, covering a range of options for writing tests, publishing…

On behalf of the team, I am happy to announce the general availability of the Spring Cloud Stream Brooklyn release train. Spring Cloud Stream Brooklyn.RELEASE is available for use in the Spring Release repository and in Maven Central. A detailed description of the features and new capabilities as discussed below can be found in the reference documentation. The release notes are available here and include important information on the migration path.

At a high level, Brooklyn.RELEASE introduces the following new features:

• Support for Apache Kafka 0.9 and 0.10 (Apache Kafka 0.8.x users must use Spring Cloud Stream 1.0.x);
• Schema Registry support;
• Reactive API support;
…

On behalf of the community, I am pleased to announce the release of Spring Security 4.2.0.M1.

What’s New in Spring Security 4.2

You can find highlights of what’s new in the What’s New in Spring Security 4.2 section of the reference. This release closes out 50+ issues which can be found in the changelog.

Contributions

Without the community we couldn’t be the successful project we are today. I’d like to thank everyone that created issues & provided feedback.

Feedback Please

If you have feedback on this release, I encourage you to reach out via StackOverflow, GitHub Issues, or via the comments section. You can also ping me @rob_winch or Joe @joe_grandja…

As mentioned yesterday in Juergen's blog post, the second milestone of Spring Framework 5.0 introduced a new functional web framework. In this post, I will give more information about the framework.

Keep in mind the functional web framework is built on the same reactive foundation that we provided in M1 and on which we also support annotation-based (i.e. @Controller, @RequestMapping) request handling, see the M1 blog post for more on that.

Example

We start with some excerpts from our sample application. Below is a reactive repository that exposes Person objects. It is quite similar to a traditional, non-reactive repository, except that it returns Flux<Person> where you would return a List<Person> traditionally, and Mono<Person> where you would return a Person. Mono<Void> is used as a completion signal: to indicate when the save has been completed. For more information on these Reactor types, refer to Dave's blog post…