Welcome to another installment of This Week in Spring! This week I'm back in Silicon Valley, talking to developers at a handful of large technology-driven companies about taking their first steps with a cloud-native architecture. Interesting feedback, as ever! This week I'll be doing a meetup here in the bay area on building Bootiful microservices with Spring Cloud. Next week, I look forward to seeing people at Java2Days in Sofia, Bulgaria! C'ya there!

1. Spring Integration lead Gary Russell has just announced Spring Integration 4.1.0 and Spring AMQP 1.4.0 final are now available!

• Spring Security OAuth 2.0.4.RELEASE Available Now. The new release contains a few nice additions and a few bug fixes, making it a recommended, easy upgrade.
• Spring lead Juergen Hoeller just announced the availability of Spring Framework 4.1.2, accompanied by 4.0.8 and 3.2.12 maintenance releases.
• I'll be doing a webinar with ZeroTurnaround's Adam Koblentz introducing how to use Spring (and Spring Boot in particular) and JRebel 6…

Welcome to another installment of This Week in Spring! This week I'm on the road talking to enthusiastic Spring developers in Casablanca, Morocco at the JMaghreb conference and then it's off to London (again!) for the amazing Spring eXchange. If you're at either, be sure to say hi!

• Artem Bilan, Spring Integration ninja and a personal hero of mine, has just announced the Spring Integration RC1 release. I don't know if you've seen the Java configuration DSL, but it makes writing complex integration flows a breeze! It takes advantage of Java 8's lamba support. Check it out! Remember, microservices aren't exclusively REST centric. If you're trying to build a microservice and expose it over any other mechanism, I'd start with Spring Integration.
• Spring ninja Thomas Risberg just announced Spring for Hadoop 2.0.3…

Sometimes, teh Twitterz is an amazing place. Just last week I spent some time helping clarify the behavior of Spring's @Qualifier annotation, which is both older than JSR 330 and offers a richer superset of JSR 330's @Qualifier annotation. These misguided few seemed to be under the impression that Spring's annotation didn't offer the same degree of type-safety as the JSR 330 annotation. I don't know if it's because they simply hadn't read up on the support (which is fairly new, since it's only been around since 2007), or if it's because they work for companies that make their money if you…

Hello from New York City! Tonight I'll be addressing the Cloud Foundry User Group on how to build Spring Boot and Spring Cloud-based microservices that run on Cloud Foundry - I hope you'll join us! And if you're in Boston, then come hang out when I give the same talk there on Thursday!

• Spring Social lead and all around Spring ninja Craig Walls announced the Spring Sync project and then wrote up a nice introduction to it, which - this is taken from the post because it's perfectly stated there - addresses efficient communication between client applications and Spring backends by employing patch-based exchanges. So, basically, the one piece of the pie (after basic REST, HATEOAS and hypermedia, OAuth and security in general, all of which Spring supports capably and in a first-class way) missing in client/server communication (like REST) is now here! If you read one…

Greetings Spring Community!

Today we have released a new tutorial written by Spring geek Josh Long, the man who travels the globe talking about Spring: Building REST Services with Spring

In this sleek tutorial, you can read about the simplicity and power of building RESTful web services using Spring. You'll also see how to:

• Test them with Spring's powerful MockMvc
• Secure them with Spring Security
• Plugin error handling
• Add hypermedia controls
• Dabble with OAuth
• See it all using Spring Boot

It's a really good read with LOTS of code (you know, the important stuff). What about the existing REST…

Earlier today, I announced the first milestone release of Spring Sync, a new project that addresses efficient communication between client applications and Spring backends by employing patch-based exchanges. As this is a new project, I thought it would be a good time to show you what Spring Sync can do.

The examples given here refer to the Spring REST Todos example and/or the Todo class in that example project.

Creating and applying patches

At its lowest level, Spring Sync provides a library for producing and applying patches to Java objects. The Patch class is the centerpiece of this library…

Welcome to another installment of This Week in Spring! This week I'm talking to developers at the Neo4j GraphConnect conference with my pal (and Neo4j evangelist) Kenny Bastani, and then on Thursday I'll be doing a webinar with my one of my pals on the Vaadin team, Peter Lehto, on how to build Bootiful Vaadin applications - don't miss it!

Next week, I'll be doing a string of appearances at Toronto, New York City, and Boston meetups helping people better build microservices with Spring Boot, Spring Cloud and Cloud Foundry. Register now, come for the code, conversations, pizza and beer! Microservices are a big thing these days, and I'm sure there'll be a lot to talk about so don't miss these events!

As usual, we've got a lot to cover so let's get to it!

• Reactor project lead Jon Brisbin giddily announced the first milestone for Reactor 2.0 which has as its headline feature the Reactive Streams API. The Reactive Streams API is a collaborative effort between Netflix, Typesafe, Pivotal, RedHat, and others that makes easier the task of handling backpressure in a reactive pipeline.
• Spring Data ninja Christoph Strobl has put together a nice look at what’s new in the latest and greatest Spring Data Evans release train.
• I hope you’ll join me this Thursday as Vaadin’s Peter Lehto and I introduce how to build Bootiful Vaadin rich UI applicatons.
• Then, mark your calendars for the good Dr. Syer's webinar introducing Security for Microservices with Spring and OAuth2
• Spring’s the most productive Java technology, but who wouldn’t like to squeeze more productivity out of the Java language itself by eliminating restarts and instead simply reloading changed byte code? JRebel can help! Adam Koblentz has put together two very cool posts looking at how JRebel can reload Spring XML configuration and how it can reload Spring MVC @Controller and @RestController-based @RequestMapping metadata.
• Speaking of Neo4j, they've just published some handy new guides (which they tell me were at least in part inspired by the Spring guides - blush!) that detail how to get started with Spring Data Neo4j and Spring Boot
• Comsysto Gmbh has put together a very nice look at Spring Boot and a Spring Boot applications lifecycle. He describes as, "his favorite timesaving, convention-enabling, autoconfig-creating, bean-making classpath-shaking microcontainer!"
• Readers of this roundup will know that we love JHipster, the Yeoman-based Spring Boot and Angular.js-code generator. JHipster just celebrated its first birthday! Joyeux anniversairre, JHipster!
• Nieraj Singh put together a detailed look at how to manage Cloud Foundry services in Eclipse with our Cloud Foundry plugin.
• Phillip Verheyden (from Broadleaf Commerce, the makers of a Spring-based e-commerce engine) wrote up his thoughts on SpringOne2GX 2014. Thanks, Phillip!
• You are following Groovy-language project lead Guillaume LaForge’s weekly roundup of all that’s awesome in the Groovy ecosystem, aren’t you?
• Check out this post on The Spring Way blog if you’re trying to marshall arrays of complex types back and forth with Spring’s RestTemplate.
• I always love reading Adrian Colyer’s blogs. Recently, he’s been reviewing one interesting academic paper per week. This last week he looked at a paper that offers that there’s not so strong a link between code-coverage and what that implies for (assurances about) code quality.

The Reactor team is frankly a little giddy at finally being able to announce an initial milestone release of Reactor 2.0! This update includes a fully-compliant Reactive Streams implementation in the completely re-written Stream and Promise APIs! This is a huge step for Reactor users. It opens up integration with other Reactive Streams implementations like Akka Streams, Ratpack, RxJava and others. Reactor provides a solid foundation upon which to build modern #uberfastdata applications with demanding high-throughput and low-latency requirements.

Stream and Promise

The headline change in Reactor 2.0 is the Stream API. In fact, most other parts of the codebase were either just lightly refined or remain untouched between 1.1 and 2.0. Not so with Stream and Promise. These components have been completely…

Spring Data Release Evans has been around for a while and it's more than time to finally introduce you to the latest and greatest features we shipped with it.

There's a lot to cover since major enhancements have gone into the commons module. Those changes already have made it into some store modules and will go on and sneak their way into others over time, too. All of them are already available for at least Spring Data JPA. That said, lets jump right in.

Advanced support for Java 8

Java8 has now been around for a while and previous Spring Data release trains already added fundamental support…