We have an exciting announcement to make!

The Spring projects are about developing fast, flexible Java apps.

But there's a driving force behind the technology—its people. We open-source our projects to welcome our community into making Spring the best it can be.

Now we are taking another step in that direction. Each of the active Spring projects has adopted a Contributor Code of Conduct! You can look at the contributor code of conduct right here, and you'll find a copy in each of our repositories on Github.

We want people from minority groups in tech to feel welcome to contribute to Spring…

This is a cross-post blog from Simon BASLÉ from Couchbase. You can find him on twitter (@simonbasle) or github. Learn more about Couchbase and the Couchbase Java SDK on the developer portal. Thanks again, Simon and great job to you and your team! -Josh

Spring Data Couchbase 2.0 is a rewrite of the original Spring Data Couchbase 1.4.x connector. It is based on the Couchbase Java 2.2 SDK and makes heavy use of the new query language N1QL (which was introduced in Couchbase Server 4.0) to offer more features for Spring Data users.

The first Milestone has been released last august, then a Release…

At SpringOne2GX 2015, Juergen announced plans for Spring Framework 5 with a major focus on reactive architectures. Concrete efforts are already underway and a lot has happened since!

At the most basic level, reactive programming models allow for writing non-blocking services and applications. This requires a fundamental shift from writing imperative logic to async, non-blocking, functional-style code, in particular when interacting with external resources.

Reactive Web Applications

Most Java web applications are built on the Servlet API which was originally created with synchronous and…

Welcome to another installation of This Week in Spring! This week I'm in beautiful Stockholm, Sweden at the amazing JFokus conference. It's also Shrove Tuesday here in Sweden and the custom is to over-indulge, so as I type this I am eating a Semla. I hope you too enjoy over-indulging on this week's epic roundup!

• the world's worst kept secret is finally announced! We've been developing a reactive runtime for Spring MVC, and you can start to kick the tires! Check out this amazing blog on Spring 5's ambitions for reactive web programming!
• Spring Cloud Stream lead Marius Bogoevici has just announced Spring Cloud Stream 1.0.0.M4 which, among other things, defaults to publish/subscribe semantics, supports a notion of consumer groups, provides a simplified binder SPI, resettable Kafka offsets, and so much more! Check it out!
• the 2.0.0.RELEASE of Spring Data Couchbase just dropped!…

Recorded at SpringOne2GX 2015 Presenter: Brian Clozel Web / Javascript Track Slides: http://www.slideshare.net/SpringCentral/http2-for-the-web-developer

The HTTP/2 spec is here - clients are servers are racing to implement it, while browser support is increasing everyday... The JVM world is already working on it in the Servlet 4.0 and JDK9 specs. But we developers, are still trying to understand the implications of it.

Should we reconsider the way we build JavaScript applications and optimize them for front-end performance? Will our server application have new roles and abilities?

In this…

Recorded at SpringOne2GX 2015 Presenters: Greg Turnquist & Roy Clarkson Data / Integration Track Slides: http://www.slideshare.net/SpringCentral/spring-data-rest-data-meets-hypermedia-security

Check out Spring Data REST, a library than can rapidly bridge your data access layer to a RESTful interface using hypermedia. See how you can build the backend for your startup rapidly using top notch practices. We will then look at Spring-A-Gram, a sample application built with Spring Data REST and secured by Spring Security. Snap pictures from your laptop or smartphone and upload them to the server…

Recorded at SpringOne2GX Presenters: Phil Berman, Michael Minella & Derrick Shields Big Data Track Slides: http://www.slideshare.net/SpringCentral/iot-realized-the-connected-car-53122510

For this session we will explore the power of Spring XD in the context of the Internet of Things (IoT). We will look at a solution developed with Spring XD to stream real time analytics from a moving car using open standards. Ingestion of the real time data (location, speed, engine diagnostics, etc) into HDFS, analyzing it to provide highly accurate MPG and vehicle range prediction, as well as providing…

I received an email recently that asked about how to forward control from a wait-state in an Activiti (which is an open-source BPMN2 workflow engine from Alfresco) to a Spring Integration flow and then resume execution of the Activiti workflow process upon completion of some work in Spring Integration.

To really appreciate why this is useful goal, we need some background.

What is Activiti

Activiti is a business process engine. It's basically a directed graph of nodes (states) that model the states of a complex business process. It keeps track of the progression of work described in a business…

On behalf of the team, I am pleased to announce the release of Spring Cloud Stream 1.0.0.M4. The new release comes with a few major changes and enhancements, and it defines core abstractions and primitives that we believe to be essential for the development of distributed real-time data processing applications. To name some of them:

Default publish-subscribe semantics

The most important change in Spring Cloud Stream 1.0.0.M4 is the way in which applications interact with each other. We have opted for a default publish-subscribe model, in which each application that receives messages from a given destination will receive a copy of the message. This is a better fit for the processing model of stream applications, where intermediate topics act as data hubs for the various intersecting data streams, also making scenarios such as tapping easier and more efficient. This feature goes hand in hand with the next, which is consumer groups…