I'm happy to announce, that Spring Data JDBC and R2DBC finally support Composite IDs starting with version 4.0.0-M4.

Most of you probably know, but just to make sure everyone has the same understanding: From the database point of view a composite id (or composite key) is a primary key that consists of more than one column. On the Java side these columns get mapped to an entity with an attribute for each column Usage should be straight forward and I'll demonstrate it in the following article for JDBC. Usage in R2DBC is anlogous.

To get started just put an @Id annotation on a field in your…

Hi, Spring fans! It's almost SpringOne time!! AAAAH it's all moving so quickly! I can hardly stand it. SpringOne's next month, in lovely Las Vegas, and I'll be there. Will you? Have you registered?

We'll be looking at the impending Spring Boot 4.0 and Spring Framework 7.0 releases! It's going to be a ton of fun. Indeed, you'll notice that's a theme these days: tons of new projects in the milestones or early days stages of development, making their way down the winding road to GA, in time for Spring Boot 4.0 and Spring Framework 7.0. This is my favorite time: we should all be trying the bits…

Hi, Spring fans! In this edition, I had the pleasure of chatting with the brilliant Arjen Poutsma, our go-to API oracle.

If you’re curious about his fantastic insights, thoughts, and consultancy services, be sure to check out poutsma-principles.com

Hi, Spring fans! It's already the 15th of July! We're closer to 2026 than we are to 2024. And time's sure flying. Like I will, tomorrow. I'll be flying to Denver for the amazing UBERCONF software show! I'll be doing a workshop and two talks, and if you're there, I hope you'll come say "hi"!

Let's get into this week's roundup, because it's a doozy!

• this is technically from more than a week ago, but Spring gRPC 0.9.0 is available now!
• In last week's A Bootiful Podcast, I talked to Spring team alumnus and API oracle Arjen Poutsma
• Spring Cloud 2024.0.2 (aka Moorgate) has been released
• An interesting article with a bold claim: Cron Jobs Are Dead: How I Used Temporal to Future-Proof My Spring Boot App. I haven't played too much with Temporal, but it looks like its solving an interesting problem - workflow orchestration - in an interesting way, and offers a good Spring Boot integration.
• I did a talk for Jetbrains with IntelliJ IDEA lead Aleksey Stukalov looking at a …

Hi, Spring fans! In this edition, I had the pleasure of chatting with the brilliant Arjen Poutsma, our go-to API oracle.

If you’re curious about his fantastic insights, thoughts, and consultancy services, be sure to check out poutsma-principles.com

Hi, Spring fans! Welcome to another installment of This Week in Spring! I write this having spent a wonderful week in paradise (Bora Bora, French Polynesia, to be precise) with my partner Tam Mie. We were so very sad to have to say goodbye.

But that means I'm officially back at my desk, with nary a manta ray to be found anywhere. Sigh. That's okay, though, as there are a ton of amazing things to read and catch up on - so let's dive into this week's roundup (if not the pearly blue, crystal-clear oceans of the South Pacific)!

• Good news, everybody! Spring gRPC 0.9.0 is available now!
• In last week's installment of A Bootiful Podcast, I talked to the legendary Dr. Heinz Kabutz.
• Andres Almiray did a follow-up blog to our post introducing Spring AI and Oracle DB as a vector store back in May—this one on connecting Spring AI to Oracle Autonomous DB.
• A nice blog post looking at what's new in Spring Boot 4.0.
• Come watch AWS developer advocate and industry legend James Ward, and yours truly, as we explore AI with Spring AI and Amazon Bedrock.
• JUnit 6.0.0.M1 is available for, erm, testing!
• Spring Modulith lead Oliver Drotbohm looks at the overhauled event publication registry support in Spring Modulith 2.0…

Hi, Spring fans! In this installment, I talk to Dr. Heinz Kabutz, a legendary Java Champion, trainer, teacher, and author of the Java Specialists newsletter! This episode was recorded live at Devoxx UK 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's July!!

This week, I'm on PTO, and as always, I'm looking for good reading material on the plane ride over for my holiday. Thank goodness for the ever-vibrant and awesome Spring community; there's tons of stuff to dive into!

I may be going on a little holiday, but the next few months are going to be a ton of fun, and I'm looking forward to it. Did you know that SpringOne, in lovely Las Vegas, is just a few months away? Get your tickets now!

• JetBrains IntelliJ PM Andrey Belyaev has written a nice post demystifying the Spring debugger in IntelliJ IDEA
• "How I write production-ready Spring Boot applications"
• Spring Cloud 2023.0.6 (aka Leyton) has been released
• In last week's installment of A Bootiful Podcast, I talked to DevOps and AI luminary Patrick Debois
• Spring GraphQL 1.3.6, and 1.4.1 released
• Containerizing Spring Boot projects using Docker for beginners
• AI for Java developers: full course/workshop on getting started with Spring AI - nice!
• creating an MCP server with Spring Boot
• and, just as a friendly reminder, there's always this end-to-end course …

Hi, Spring, cloud native, and AI fans! In this installment, I had the opportunity to briefly sit down and talk with DevOps and AI luminary Patrick Debois, from the amazing Devoxx UK 2025 show.