The new Spring Cloud Finchley GA release is jam-packed with good stuff and represents a major milestone in the journey to reactive microservices. I couldn’t possibly list everything so I refer you to the fresh-from-the-oven release announcement by Spencer Gibb. Instead, in this post, I want to focus on the road we have taken to reactive Spring Cloud.

We released Spring Framework 5 in September 2017. This was the first release to introduce new Reactive programming support to help build more robust, scalable services. It builds upon the Pivotal Reactor project, our reactive streams compatible reactive runtime. Spring Framework 5 also includes a ton of new features, and I won’t try to list them all, either, choosing instead to focus on reactive support here. What is reactive programming? Why does it matter? Well, it matters when you’re building networked services.

Hi Spring fans! Welcome to another wonderful and wild This Week in Spring! This week I’m in Amsterdam, NL (visiting customers); London, UK (for both the London Java Community Java User Group talk and the SpringOne Tour event); Paris, FR (for the first JHipster Conf); Krakow, PL (for Devoxx Poland) and then it’s off to Sao Paolo, BR (for the Spring Connect show). If you’re in any of those places, say hi!

• Spring Cloud Finchley.RELEASE is available. This is the big one! It’s finally here! The final piece of the reactive puzzle. This release culminates an almost year long journey from Spring Framework 5 (released in September of 2017) which introduced the world of Spring to reactive programming. Then we saw Spring Data Kay, Spring Cloud Stream, Spring Security 5, Spring Boot 2 (just a few months ago) and now, finally, Spring Cloud Finchley all embrace reactive programming wherever it makes sense. Spring Framework 5 is the new baseline and with it comes a new Java baseline requirement; Spring Cloud Finchley assumes Java 8 or better. This release is not just a refresh, though! Furthest thing from it! This release also includes two (effectively) brand new projects called Spring Cloud Function and Spring Cloud Gateway. Spring Cloud Function supports serverless programming and Spring Cloud Gateway is an API Gateway.
• Sprinf IO Platform lead Andy Wilkinson has just announced Spring IO Platform Cairo SR2
• Not one to rest on his laurels, Andy Wilkinson also just announced Spring IO Platform Brussels SR11
• Brian Clozel published the following Spring Framework-related CVEs!
• Brian Clozel has just announced Spring Boot 2.0.3
• Stéphane Nicoll has just announced Spring Boot 1.5.14
• Simon Baslé has just announced the Reactor Bismuth-SR10 release.
• Spring Session Apple SR3 Released
• Mark Paluch announced Spring Data Ingest SR13 and Spring Data Key SR8
• Spring Cloud Stream ninja Soby Chacko has some nice examples demonstrating partitioning
• Spring Cloud Stream Ditmars.SR4 Released
• Spring Security 5.0.6 and 4.2.7 Released
• Spring Cloud Pipelines 1.0.0.M8 Released
• Spring Frameworks 5.0.7 and 4.3.18 are available now
• In last week’s Spring Tips, we looked at the brand new Spring Fu project. Spring Fu is an experiment where we investigate options for a Kotlin-first and functional configuration-centric approach to microframeworks. It is also really fast. Try it out!
• Spring community legend Michael Simons has a nice post on how to use JUnit 5 with Spring Boot for unit and integration tests
• This is a wonderful post by Martin Deinum on the structure of the ApplicationContext, and how the various kinds of “configuration” are supported in Spring. This is an absolutely golden post and I’m so happy to see someone talking about these often overlooked details.
• This post by Okta Developer Advocate Matt Raible details how to secure a Spring Boot and Angular PWA application as a single artifact
• Spring Data Geode/Gemfire lead John Blum has a fantastic example of using Spring Data Geode/Gemfire to build a sample application. Check it out
• Check out the new release of the Chaos Monkey for Spring Boot. This release supports Spring Boot 2.x, improved documentation and improved JMX Actuator support.
• Check out this new cf CLI plugin to plugin to enable pushing artifacts to cloud foundry by maven coordinates
• Tricks with ‘var’ and anonymous classes (that you should never use at work) - [email protected]
• Did you miss Spring I/O 2018 in Barcelona, Spain? (If so, why?) Check out this recap post
• The Java Revisited blog has a nice post on why every developer should use Spring to build REST APIs
• I really liked this post on user impersonation with Spring Security
• Our very own Toshiaki Maki put together a really cool demo that Spring Boot 2 and iText (OpenPDF) and AbstractPdfStamperView to create a .PDF template

On behalf of the Reactor team, I have the pleasure of announcing a first shipment of Reactor goodness this week: Reactor Bismuth-SR10 is out 🚢

Stay tuned for a Reactor Californium milestone later this week 🕵🏻‍♂️

Reactor Bismuth-SR10

The latest maintenance BOM of the 3.1.x line, Bismuth-SR10, is out. It includes two new artifacts (click on the version numbers to see the release notes on GitHub):

• reactor-core 3.1.8.RELEASE
• reactor-netty 0.7.8.RELEASE

One update considerations though: Flux.last() used to skip throwing a NoSuchElementException on some category of empty sources (Flux or Mono that are Callable, like Flux.empty()). This is a bug and it correctly does throw now.

On behalf of the team, I am pleased to announce the availability of Spring Cloud Stream Ditmars.SR4 release train. This is a maintenance release and includes several bug fixes and minor enhancements in core Spring Cloud Stream (1.3.3.RELEASE), Kafka binder (1.3.3.RELEASE), and the Rabbit binder (1.3.4.RELEASE). Please take a look at the release notes for more details. The release can be found in maven central. Detailed descriptions can be found in the reference documentation.

We thank all our community members who contributed valuable additions to this release.

speaker: Josh Long

Hi Spring fans! In this installment of Spring Tips we look at the brand new microframework from the Spring team, Spring Fu, which makes short work of building fast, reactive Kotlin-based microservices.

Hi Spring fans and welcome to another installment of This Week in Spring! This week I’m in NYC for the SpringOne Tour NYC event, then it’s off to Amsterdam for some customer visits. It’s been a wild week in Spring so let’s get to it!

• Hi Spring fans! In this installment of Spring Tips we look at the Java Persistence API
• Don’t miss this webinar on MongoDB by Spring Data’s Christoph Strobl and Mat Keep
• Spring Fu is here and it’s awesome! Just check out this example application of the new Kotlin-first microframework for Spring developers. Spring Fu is explicit, not implicit. It’s functional, it’s fast, it’s Spring Fu.
• Don’t miss the upcoming Pivotal Paris event with many of the Spring team’s local engineers
• Dr. Mark Pollack has just announced Spring Cloud Data Flow 1.5.1
• Dr. Mark Pollack, not one to rest on his laurels, just announced Spring Cloud Skipper 1.0.5
• Check out this Spring I/O 2018 talk Securing Spring Applications with Spring Cloud Vault Jan Dittberner
• Check out this tutorial on how to use jQAssistant and Spring Boot and Maven
• More than half (61 percent) of all CloudFoundry users are large enterprises which generate over $1 billion in annual revenue. See how CCloudFoundry scales in the enterprise. Download the full report!
• I had a great time talking all things Cloud Native, Singapore/Malaysian/Indonesian food in this podcast recorded at Voxxed Singapore with the cloud’s very own storyteller, Michael Coté
• Pivotal advocate Mark Heckler has a nice post on running multiple Eureka instances on the same machine
• Spring Data engineer Mark Paluch shared a tantalizing picture of initial integration for the Lettuce Redis driver and Zipkin
• Alexandru Ionita did a nice job chronicling the migration from Spring Boot 1.x to 2.x.
• twitter.com
• Check out the video to Johannes Edmeier’s Spring I/O 2018 talk, “Monitoring Spring Boot Applications with Spring Boot Admin.”
• Check out Arjen Poutsma’s SpringOne Platform 2017 talk on the functional reactive web endpoints in Spring Framework 5
• Check out this epic Domain Driven Design example by Jakub Pilimon which now has new Spring Cloud Pipelines support
• the Chaos Monkey for Spring Boot now works with Russ Miles’ Chaos Toolkit
• Chaos Toolkit LOVES Chaos Monkey for Spring Boot – Chaos Toolkit – Medium
• Microsoft Azure have even better support for deploying Spring Boot applications

speaker: Josh Long

Hi Spring fans! In this installment we look at the Java Persistence API (JPA) and its most ubiquitous implementation Hibernate. We look at basic Spring support for JPA, Spring Boot’s auto-configuration and supported configuration properties, mapped superclasses, auditing (using Spring Data’s JPA auditing facility) and journaling (using the Hibernate Envers project and Spring Data Envers).

Hi Spring fans! Welcome to another installment of This Week in Spring! It’s been a wild and wonderful week. I’ve just returned from the epic VOXXED Singapore event, just intime to enjoy a wonderful week home in Spring-time and sun-filled San Francisco. We’ve got a ton of things to cover, so let’s get to it!

• Pivotal Cloud Foundry now supports Minio, a highly available S3-like HA enterprise grade object storage server for developers.
• Spring Cloud Finchley GA is scheduled for June 15
• In Part 4 of “Should that be a Microservice?” Nate Schutta talks Independent Scalability and why it’s important
• Spring Batch ninja Mahmoud Ben Hassine just announced Spring Batch 4.1.0.M1 which includes, among other thing, simplified testing and easier remote chunking. Get the bits now!
• In last week’s Spring Tips we looked at JDBC, which is much more than just the venerable JdbcTemplate! In this post we look at the JdbcTemplate, various SQL command objects, SimpleFlatMapper, and so much more. Check it out!
• Spring Cloud teammember Ryan Baxter has just announced that Spring Cloud Finchley.RC2 was released!
• Join Madhura Bhave and Stephane Maldini on June 20th for this San Francisco JUG meetup!
• This is kind of interesting! It’s a rules-platform that targets Spring Boot, Spring Cloud and other frameworks
• The latest release of jQAssistant now supports quality control rules for Spring and Spring Boot-based applications with the inclusion of the Spring plugin.
• The Spring I/O team (behind the epic Spring I/O conference in Barcelona, Spain, are now publishing their talks and you should follow that account to get the latest videos
• I really like this post by Spring creator Rod Johnson that describes the spirit of Spring and speaks to the recent acquisition of Github by Microsoft
• Check out the Vedran Pavic’s Spring I/O 2018 talk on Spring Session](https://www.youtube.com/watch?v=sJcVaOERo6M&feature=youtu.be)
• Check out Spring Data Geode lead John Blum’s SpringOne Platform 2017 talk
• Spring Cloud Sleuth just accepted its 1000th pull-request! This project just might have legs :-)
• In London? You should be at the SpringOne Tour event on 21-22 June in London! Learn about all things Cloud Native and Spring Boot
• Apache Kafka 2.0 just had a feature-freeze! Congrats to the Apache Kafka team!
• Redis Labs liked my Spring Tips video introducing Spring’s vast support for Redis, and you might too!
• Bartosz Jedrzejewski has a great post on building reacitve applications with Spring WebFlux
• This is super cool! The IntelliJ IDEA support now includes the ability to group related confguration properties in application.properties. Nice work to Yann Cebron and the team
• Having issues with Java 10, Lombok and Spring Boot? You might want to look at this thread
• I love this blog on test driven documentation with Spring REST Docs
• Get your early bird tickets to the RabbitMQ conference!
• Hurray! Pivotal Web Services now supports Docker images! Get it while it’s hot!
• I like this post, the fourth in a series, that looks at the canonical “REST in Practice” example, Restbucks, and applies Clean Architecture.
• YouTube
• You should check out the slides from Spring Boot team legend Madhura Bhave’s Spring I/O 2018 talk on “What’s New in Spring Boot 2.0”.
• Check out this mega thread by Redis project lead Salvatore Sanfilippo on the latest and greatest in Redis
• This is exciting! The next version of Spring Boot, 2.1, now includes the Spring Integration graph endpoint.
• Christiaan Roeleveld has just announced his new BOSH video series and it looks really good! BOSH is the driftless package manager distributed systems. It manages the lifecycle of infrastructure and surfaces a portable API that works, agnostic of the underlying IaaS.
• There is now a Swift-language Cloud Foundry binding. Cool!

speaker: Josh Long

Hi Spring fans! In this installment of Spring Tips we look at the Spring support for the Java Database Connectivity (JDBC) API. Spring’s support for JDBC is one of many reasons a lot of people first started using Spring 15+ years ago! If you aren’t committed to a full-blown ORM and/or want to leverage the full power of JDBC, then this video is for you!

Hi Spring fans and welcome to another installment of This Week in Spring! I finished last week in Barcelona, Spain, for the epic Spring IO 2018 event (were you there? why not? YOU SHOULD BE IT’S AMAZING!) and now I’m in San Francisco enjoying a restive 48 hours and soon I’ll be off to sunny Saint Louis for the epic Spring One Tour St. Louis event starting the 30th then it’s off to splendid Singapore for the Voxxed Singapore event. If you’re in either region, reach out! I’d love to heard and/or see you!