This Week in Spring - November 7th, 2023

Hi, Spring fans! Can you believe we've already turned the calendar page to November? Time sure is a swift developer, deploying months as if they were minor versions in an ever-evolving application. As we adjust our clocks to fall back, waving a reluctant goodbye to daylight savings time, the...

SSL hot reload in Spring Boot 3.2.0

In Spring Boot 3.2.0, we're adding the ability for embedded web servers to hot-reload SSL certificates and keys. That means you can rotate your SSL trust material without restarting your application. Hot reloading is supported for Tomcat and Netty embedded web servers. Let's see that in action!...

A Bootiful Podcast: GraalVM founder and Oracle vice president Thomas Wuerthinger

Hi, Spring fans! In this installment Josh Long talks to Oracle vice president Thomas Wuerthinger about the project he created and leads, GraalVM. This was recorded live from Devoxx Belgium 2023!...

What new is coming in reactor-core 3.6.0?

Reactor 3.6.0 is coming and going to be GA on November 14. This blogpost describes new features that are included in this upcoming release! Virtual Threads support Today, everyone talks about Java 21 and Project Loom. The Project Reactor team hears that and sees value in that project within our...

This Week in Spring - October 31st, 2023

Hi Spring fans, and Happy Halloween from the Spring team to those who celebrate! I hope your evening is fun and your day free of scary bugs! My friends, we've got some interesting stuff to look at this week so let's dive right into it. A Bootiful Podcast: Mr. Spring in Action, Craig Walls Spring...

A Bootiful Podcast: Mr. Spring in Action, Craig Walls

Hi, Spring fans! This week, I'm joined by one of my longtime heroes and fellow Disney fans, Craig Walls @habuma. He wrote the most popular book on Spring, Spring in Action, while helping the world stay connected with efforts like Spring Social. This episode was recorded live at SpringOne 2023, in...

This Week in Spring - October 24th, 2023

Hi, Spring fans! This week I'm in Lisbon, and Porto, Portugal, ahead of the Porto Tech Hub event in Porto, and my tour bus is about to leave! So, let's dive right into it! Spring Authorization Server 1.1.3, 1.0.4 and 0.4.4 available now Spring Authorization Server 1.2.0-RC1 available now Spring...

A Use Case for Transactions: Outbox Pattern Strategies in Spring Cloud Stream Kafka Binder

Other parts in this blog series Part 1: Introduction to Transactions in Spring Cloud Stream Kafka Applications Part 2: Producer Initiated Transactions in Spring Cloud Stream Kafka Applications Part 3: Synchronizing with External Transaction Managers in Spring Cloud Stream Kafka Applications Part ...

A Bootiful Podcast: VMware vice president Betty Junod

Hi, Spring fans! In this installment Josh Long talks to VMware vice president Betty Junod about VMware, its amazing ecosystem, and so much more...

This Week in Spring - October 17th, 2023

Hi, Spring fans! Welcome to yet another installment of This Week in Spring! It's October 17th, 2023, and I am here in Montreal, Canada, and then I'm off to Salt Lake City, Utah on Thursday for the Java User Group there. Don't miss it! We've got a lot to cover this week so let's dive right into it...

Apache Kafka’s Exactly-Once Semantics in Spring Cloud Stream Kafka Applications

Other parts in this blog series Part 1: Introduction to Transactions in Spring Cloud Stream Kafka Applications Part 2: Producer Initiated Transactions in Spring Cloud Stream Kafka Applications Part 3: Synchronizing with External Transaction Managers in Spring Cloud Stream Kafka Applications Part ...

Runtime efficiency with Spring (today and tomorrow)

With Spring Framework 6.1 and Spring Boot 3.2 general availability approaching, we would like to share an overview about several efforts the Spring team is pursuing to allow developers to optimize the runtime efficiency of their applications. We are going to cover the following technologies and u...

A Bootiful Podcast: Java Language Architect Brian Goetz

Hi, Spring fans! Are you using Java 21 in production already? No? you should listen to this episode. Yes? Then you should listen to this episode! This week, Josh Long talks to legendary Java Language Architect Brian Goetz @BrianGoetz recaping the latest-and-greatest and previewing Java.next...

Transactional Rollback Strategies with Spring Cloud Stream and Apache Kafka

Other parts in this blog series Part 1: Introduction to Transactions in Spring Cloud Stream Kafka Applications Part 2: Producer Initiated Transactions in Spring Cloud Stream Kafka Applications Part 3: Synchronizing with External Transaction Managers in Spring Cloud Stream Kafka Applications In th...

This Week in Spring - October 10th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Last week I was in Antwerp, Belgium, for the amazing Devoxx Belgium event, and this week I've been in Amsterdam for the SpringOne Tour Amsterdam stop and - in the middle of the SpringOne Tour Amsterdam event - I dipped out to...

A Bootiful Podcast: Spring Data legend Greg Turnquist on optimizations and queries and more

Hi, Spring fans! In this installment, we'll talk to Spring Data legend Greg Turnquist @gregturn about the incredible next-level optimizations and query enhancements, the work in general, and so much more. Recorded live at SpringOne 2023 in Las Vegas!...

Synchronizing with External Transaction Managers in Spring Cloud Stream Kafka Applications

Other parts in this blog series Part 1: Introduction to Transactions in Spring Cloud Stream Kafka Applications Part 2: Producer Initiated Transactions in Spring Cloud Stream Kafka Applications In the previous part of this blog series, we saw the basics of transaction management, primarily when...

This Week in Spring - October 3rd, 2023

Hi Spring fans! Welcome to another installment of This Week in Spring! How're you doin'? I've just flown in from Singapore - where I was keynoting and presenting at SpringOne Singapore - and am now in Antwerp, Belgium for the deliriously fun Devoxx Belgium show. I've missed this show, and it's a...

Producer Initiated Transactions in Spring Cloud Stream Kafka Applications

Other parts in this blog series Part 1: Introduction to Transactions in Spring Cloud Stream Kafka Applications This article is part 2 of the blog series in which we look at transactions in detail with Spring Cloud Stream and Apache Kafka. We saw a general introduction to transactions in the...

A Bootiful Podcast: Spring AI lead Dr. Mark Pollack

Hi, Spring fans! In this episode I talk to Dr. Mark Pollack, lead of the new Spring AI project. This episode was recorded live at SpringOne at VMware Explore 2023, in Las Vegas...

Introduction to Transactions in Spring Cloud Stream Kafka Applications

We are starting a new blog series that focuses on working with transactions in Spring Cloud Stream Kafka applications. This blog series covers many low-level details of writing transactional applications with Spring Cloud Stream and Apache Kafka. By the end of this blog series, we hope to give yo...

This Week in Spring - September 26th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you? It's September 26th, 2023, and I am in sunny Singapore for SpringOne at VMWare Explore Singapore. If you're around, don't forget to say hi! It's gonna be a fun and busy week in Singapore, and then next week I'm o...

Paketo Buildpacks Bionic End Of Support

The Spring Boot plugins for Maven and Gradle provide the ability to build Docker images using Cloud Native Buildpacks. By default, Spring Boot uses the CNB builders provided by the Paketo Buildpacks project. What's Changed The Paketo Buildpacks project has announced that Ubuntu 18.04 Bionic-based...

Simplified Event Externalization with Spring Modulith

Transactional service methods are a common pattern in Spring applications. These methods trigger a state transition important to the business. This usually involves a core domain abstraction, such as an aggregate and its corresponding repository. A stereotypical example of such an arrangement mig...

A Bootiful Podcast: Java community legend Sharat Chander

Hi, Spring fans! Java 21 is out and in order to celebrate, I talk to Java community legend Sharat Chander...

Hello, Java 21

Hi, Spring fans! Get the bits Before we get started, do something for me quickly. If you haven’t already, go install SKDMAN. Then run: sdk install java 21-graalce && sdk default java 21-graalce There you have it. You now have Java 21 and graalvm supporting Java 21 on your machine, ready to go. Ja...

Spring Tips: Making the joyful jump to Java 21

Hi, Spring fans! Java 21 and GraalVM supporting Java 21 are at long last here! It's been a long time in coming, but Java 21 - which comes out later today on the 19th of September, 2023 - brings with it some of the most exciting new features of any Java release. In this video, I will look at some ...

This Week in Spring - September 19th, 2023 (Java 21 Edition)

Hi, Spring fans! Welcome to another installment of This Week in Spring - Java 21 edition! The big news, indeed, the biggest news, is that Java 21 is now available here! You should use SDKMAN to install it, like this: sdk install java 21-graalce && sdk default java 21-graalce. This install givews...

This Week in Spring - September 12th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you this fine 12th of September? I'm doing alright, elated, even. I've just returned from beautiful Oslo, Norway, and I've got a busy 30 days or so ahead, starting today. I'm visiting Seattle, WA; Mexico City, Mexico;...

All together now: Spring Boot 3.2, GraalVM native images, Java 21, and virtual threads with Project Loom,

This has been a very long time in coming, but finally we can create GraalVM native images that use Spring Boot via Spring Boot 3.2 and Java 21's virtual threads Project Loom! Why does all this matter? Each of these individual things, Project Loom, and GraalVM native images, offer compelling runti...

A Bootiful Podcast: Spring Security lead Rob Winch

Hi, Spring fans! Welcome to another installment of a Bootiful Podcast. In this interview, Josh Long @starbuxman talks to Spring Security legend and lead Rob Winch @robwinch, recorded live from SpringOne 2023!...

This Week in Spring - September 5th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you? I just got back from another fabulous labor day weekend, and am headed to Oslo, Norway, for the fabulous JavaZone 2023 event. This will be my first time returning to lovely Oslo, Norway, since the pandemic! I can...

This is the Beginning of the End of the N+1 Problem: Introducing Single Query Loading.

TL;DR: Starting with Spring Data JDBC 3.2.0-M2, Spring Data JDBC supports Single Query Loading. Single Query Loading loads arbitrary aggregates with a single select statement. To enable Single Query Loading you need to call setSingleQueryLoadingEnabledtrue on your RelationalMappingContext. In...

A Bootiful Podcast: Spring Security and Kubernetes legend Daniel Garnier-Moiroux

Hi, Spring fans! In this installment Josh Long talks to Spring contributor and adjunct professor at Mines Paris, Daniel Garnier-Moiroux @kehrlann, about the wild and wonderful intersection of all things Spring Security and Kubernetes, productized Spring Cloud Services, and more, recorded live at...

Spring Data JDBC - How To Maintain Your Database Schema

This is the fifth article of a series about how to tackle various challenges you might encounter when using Spring Data JDBC. The series consists of: 1. Spring Data JDBC - How to use custom ID generation? 2. Spring Data JDBC - How do I make bidirectional relationships?. 3. Spring Data JDBC - How ...

My SpringOne 2023 Recap

Hi, Spring fans! Look, it's Monday after the first in-person SpringOne of the 2020s and the first since the pandemic, and, being honest, I'm bushed! Vegas is a dizzying, sensational, overwhelming, exciting experience, and SpringOne is too. But it was worth it. The SpringOne show surpassed all...

This Week in Spring - August 29th, 2023 - the post SpringOne recovery blog

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm exhausted. Seriously. Last week was mental. If you need me, I'll be over sipping on a tea... But, before that, there's a ton of things to cover from this last week, as always, and there's no rest for the curious, so let's...

A Bootiful Podcast: cloud native Chris Richardson

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to original cloud native Chris Richardson on microservices, architecture, and more...

This Week in Spring - August 22, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! And, would you believe it, I'm writing this at SpringOne 2023, in sunny Las Vegas, Nevada. This is the first in-person SpringOne since 2019, and I'm so, so, so glad to be here! We've got a ton of things to get into this week,...

Tackling the OAuth2 Client component model in Spring Security

In Spring Security 5, we saw many developments in the OAuth2 story with the introduction of OAuth2 Resource Server and OAuth2 Client into the framework. Today, it is quite convenient to develop applications that are secured by OAuth2 using the features available in OAuth2 Resource Server...

A Bootiful Podcast: Tadaya Tsuyukubo, creator of R2DBC Proxy, DataSource Proxy, and more

HI, Spring fans! In this installment Josh Long talks to R2DBC Proxy creator Tadaya Tsuyukubo, @ttddyy, creator of R2DBC Proxy and others...

This Week in Spring - August 15th, 2023

SpringOne, the first in-person SpringOne since the pandemic! - is next week!! I'm so excited I could spit. And I did spit. And then, I asked ChatGPT for some help writing a poem, and it did not disappoint! T'was a week before SpringOne, in Las Vegas so grand, Where devs from all corners would soo...

A Bootiful Podcast: Spring Cloud cofounder and lead Spencer Gibb on Spring Cloud Gateway for the Servlet API in the era of Project Loom

Hi, Spring fans! In this installment, my first since I returned from two blistering hot but super fun months in Asia, I talk to Spring Cloud cofounder and lead Spencer Gibb @SpencerBGibb about the new Servlet-friendly Spring Cloud Gateway project...

This Week in Spring - August 8th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm baaaaack in the USA for the first time in more than two months, and it feels great to be home! I just concluded a tour of Asia, visiting Taipei, Taiwan Sydney, and the Blue Mountains, in Australia Seoul, S. Korea Singapor...

A Bootiful Podcast: UL Systems founder and chairman Shigeru Urushibara interviews.. me?

Hi, Spring fans! I just crossed 13 years on the Spring team! I just got to spend a lovely day in the presence of one of my heroes and friends, UL Systems founder and chairman, Shigeru Urushibara-san @ulsystems, here in Tokyo, Japan, and in this episode, we sort of flip the script. We had a brief...

This Week in Spring - August 1st, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Can you believe it's already August 1, 2023??? Me either. As I write this, I'm preparing some of my contributions for SpringOne at VMWare Explore 2023, happening next month in lovely Las Vegas, NV. Have you registered yet? I'...

A Bootiful Podcast: Spring team legend Dr. David Syer on view rendering technologies, the latest-and-greatest, SpringOne 2023, and more

Hi, Spring fans! In this installment Josh Long talks to the legendary Dr. David Syer about view rendering technologies, SpringOne, and more. Have you registered for SpringOne yet? Are you interested in learning Spring? Check out Spring Academy...

This Week in Spring - July 25th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Look, I'm going to level with you. This is the view from where I'm staying on holiday right now in tropical Lankawi, Malaysia: I'm super interested in this week's roundup, as always, but I'm also very interested in that...

A Bootiful Podcast: Java legend Simon Martinelli on Vaadin, JavaOOQ, and so more

Hi Spring fans! In this installment Josh Long talks to Java legend Simon Martinelli about Vaadin, Spring, JavaOOQ, and more. This episode was recorded live from beautiful Barcelona, Spain at the amazing Spring I/O show!...

This Week in Spring - July 18th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm in crazy cool Kuala Lumpur, Malaysia. If you're around, I'll be doing a presentation this Thursday the 20th of July, and I'd love to see you there! Then, after a quick vacation, it's off to Tokyo, Japan, where I'll also b...