This Week in Spring - September 27, 2016

Engineering | Josh Long | September 27, 2016 | ...

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!

Java DSL for Spring Integration 1.2 Release Candidate 1 is available

Releases | Artem Bilan | September 27, 2016 | ...

Dear Spring Community,

I’m pleased to announce that the Java DSL for Spring Integration 1.2 RC1 is available now.

Since the previous Milestone 2 we had a good deep feedback for our new features and some API has been broken to reflect real requirements.

As usual, big thanks to everyone who created issues, raised Pull Requests, provided feedback or just asked questions on StackOverflow.

The artifact org.springframework.integration:spring-integration-java-dsl:1.2.0.RC1 is available in the Milestone repo. So, give it a shot for last chance to raise a GH issue for any feedback!

Now about the changes in the 1.2 RC1

Ready your Java 8 Reactive apps now, Reactor 3.0 GA is out !

Releases | Stephane Maldini | September 27, 2016 | ...

After more than a year of work, multiple milestones and fine tuning based on much feedback, I have the pleasure of announcing Reactor 3 General Availability. You will find Reactor Core 3.0.2.RELEASE on Maven Central.

Join the chat at Reactor Core

What is Reactor 3 ?

Reactor 3 provides a powerful and efficient reactive programming model for Java 8 based applications. The model builds upon the experience of both Reactor 2 and RxJava 1 and introduces a fluent way to compose asynchronous backpressure-ready event processing. Spring Framework 5 uses Reactor 3 to build and eventually expose a complete reactive story.

Its design relies on an extensible execution model that favors event processing colocation. Typically, Reactor will be jumping threads between event flow stages only when explicitly asked so. For instance, in-memory operations such as list access or payload transformation do not usually require a thread boundary. If the operation producer or receiver might take time, users are expected to operate their flow with Flux#publishOn / Mono#publishOn or Flux#subscribeOn / Mono#subscribeOn and choose a Scheduler to run on. Alternatively, if a user is combining the results of many Publisher as with

Spring Cloud Camden.RELEASE and Brixton.SR6 are available

Releases | Spencer Gibb | September 26, 2016 | ...

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

SpringOne Platform 2016 Replay: Spring MVC 4 Web Apps

News | Pieter Humphrey | September 26, 2016 | ...

Recorded at SpringOne Platform 2016. Speaker: Rossen Stoyanchev Slides:

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.

SpringOne Platform 2016 Replay: Cloud Native Java with Spring Cloud Services

News | Pieter Humphrey | September 26, 2016 | ...

Recorded at SpringOne Platform 2016.
Speakers: Craig Walls; Spring Social Lead, Pivotal. Roy Clarkson; Spring Mobile Lead, Pivotal. Slides:

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…

Spring Cloud Data Flow for Apache Mesos 1.0 GA released

Releases | Thomas Risberg | September 26, 2016 | ...

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…

Spring Cloud Contract 1.0.0.RELEASE is available

Releases | Marcin Grzejszczak | September 23, 2016 | ...

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…

Spring Security 4.2 M1

Releases | Rob Winch | September 23, 2016 | ...

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.


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

Spring Cloud Stream Brooklyn.RELEASE is available

Releases | Marius Bogoevici | September 23, 2016 | ...

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;

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