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!…

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…

Welcome to another installment of This Week in Spring! It's been a busy week for all of us on the Spring team, as you're about to see! I've just finished my presentation at the epic DevNexus show and now I'm off to visit customers in Hartford and Los Angeles before making my way to the epic ConFoo conference in Montreal, Canada. If you're in the area, be sure to ping me and say hi!

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

• Reactor project lead Stephane Maldini just announced Reactor 2.5: A Second Generation Reactive Foundation for the JVM. This is a huge part of our continued efforts to better support reactive workloads with Spring.
• We've added a new language, Kotlin, to the Spring Initializr! To learn more check out this great post by Sebastien Deleuze on Developing Spring Boot applications with Kotlin
• Spring Integration and Spring AMQP lead Gary Russell's just announced Spring AMQP 1.6.0 Milestone 1 (and 1.5.4) Available
• Spring REST Docs lead Andy Wilkinson's just announced Spring REST Docs 1.1.0.M1
• last week, Spring Data Couchbase 2.0 went GA, and this week I'm pleased to share a guest post from project lead Simon Baslé introducing …

UPDATE: This is a summary of XSS without HTML: Client-Side Template Injection with AngularJS. Previously the citation was in the middle of the document and difficult to find. The goal of the summary is to present the exploit and a fix without all the nuances, not to claim the work as my own.

Introduction

AngularJS is a popular JavaScript framework that allows embedding expressions within double curly braces. For example, the expression 1+2={{1+2}} will render as 1+2=3.

This means that if the server echos out user input that contains double curly braces, the user can perform a XSS exploit using…

Welcome to another installation of This Week in Spring! Here we are, already staring at the second month of the year and, boy!, are things getting exciting! I'm about to start hitting the road again and I'd love to talk to you and your organization if you're near any of the following places and events in February:

• Microchg Conf
• JFokus
• Devnexus
• Hatford, Connecticut (around 17/2/2016)
• Confoo
• Shanghai (around 26/2/2016)

Anyway, without further ado, let's get into it!

• our own Paul Chapman chimes in on the updated courseware available for developers who want to learn about Spring
• there are (finally!) new guides available on using Spring Cloud: routing and filtering using the Netflix Zuul microproxy library and Spring Cloud, centralized configuration with the Spring Cloud Config Server, the circuit breaker design pattern, and service registration and discovery using Spring Cloud's DiscoveryClient abstraction and Spring Cloud's integration of Netflix Eureka. Stay tuned, we've got more in the pipeline!
• Spring Boot lead Phil Webb just announced the release of 1.3.2…

This blog has been updated -- see here.

More Information

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Welcome to another installment of This Week in Spring! What a week it's been! Last week saw me visit St. Louis to speak to some customers and deliver a talk at a meetup with my pal Mark Heckler

• check out this post on using Spring Boot with the Wicket web framework
• Nice, quick post on using Spring Boot with MongoDB
• I love this post: it shows how to use Spring Cloud's Config Server with Groovy. Is that a big deal? NO! It's an incredibly tiny, concise, expressive deal! What a wollup!
• I hope you'll join my pal Kenny Bastani for a webinar as he looks at how to use Spring Boot and Neo4J to create a page rank algorithm later this month
• Join Spring Data lead Oliver Gierke as he reviews the latest and greatest in Spring Data in this webinar
• Check out test-obsessed …

Welcome to another installation of This Week in Spring! Today, I spoke at the San Francisco JUG to a packed room and now I'm off to St. Louis for a day of customer meetings. Lots of great stuff to look at as we kick off the new year so let's get to it!

• Check out Spring Integration contributor Artem Bilan's post on the latest-and-greatest on Spring Integration including the debut of a new Spring Integration extension supporting zipping and unzipping of messages in flight.
• the EuregJUG Maas-Rhine published a post on its site about.. the site! Which is all Spring Boot. Check it out.
• Check out the replay of Andy Wilkinson's SpringOne2GX 2015 talk on documenting REST APIs with Spring REST Docs
• Check out the replay of Fatima Casau's SpringOne2GX 2015 talk on using Spring Boot and Groovy
• Marius Bogoevici's SpringOne2GX 2015 talk on stream processing …