This Year in Spring - December 31st, 2024

Hi Spring fans! Happy New Year! And welcome to another installment of This Year in Spring! The year that was... I write this edition from a desk overlooking the beautiful jungle of Martinique, a beautiful island nation in the French Caribbean. I’m sipping some rhum martinique , enjoying the...

This Week in Spring - August 27th, 2024 - SpringOne 2024 edition

Hi, Spring fans, from the expo hall of SpringOne at VMware Explore 2024! There's a livestream of some of the key talks - register and watch for free now at SpringOne.io. Right now I'm hanging out at the expo hall manning a booth and doing demos to the hoardes of people streaming by, but I'll be...

Spring Tips: Go Further, Faster with Spring Boot 3.3 (UPDATED)

NB: I had an error in the AppCDS demo in the older video. This video supercedes that video, with a re-recorded segment on AppCDS. Make sure you're watching the latest of these two similarly titled videos! Hi, Spring fans! In this installment we look at ways to make your applications go further,...

Spring Cloud Function for Azure Function

What is the Spring Cloud Function? Spring Cloud Function is a SpringBoot-based framework allowing users to concentrate on their business logic by implementing them as Java Functions i.e., Supplier, Function, Consumer. In turn the framework provides necessary abstraction to enable execution of the...

This Week in Spring - January 31st, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm not going to spend too much time here in the preamble because a today's both my birthday and my late father's birthday and b I got the worst gift ever: COVID-19. Sigh. So, I'm going back to bed. Without further ado, let's...

Spring Tips: Kubernetes Native Java (Redux, 2022)

Hi, Spring fans! In this installment, Josh Long @starbuxman looks at some of the amazing opportunities for building Spring Boot applications intended for production in Kubernetes in mid 2022. The code, as usual, is available on the spring-tips Github organization...

This Week in Spring - July 5th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! This weeks all sorts of weird for me. Its Tuesday! But here in the US we just celebrated the 4th of July, and I, like many Americans, took a long weekend. Took some time with the family to do a little road trip up north to...

This Week in Spring - June 30th, 2026

Hi, Spring fans! Welcome to another installment of This Week in Spring , a weekly recap in which we review the latest and greatest in the wide and wonderful world of Spring. You probably already knew this. I don't know if I needed to mention it. But I like to. I've been doing this every week,...

A Bootiful Podcast: Spring community legend and friend Simon Martinelli

Hi, Spring fans! Happy Thanksgiving from me, and I am sure the entire Spring team, to you! We are, it should be clear, oh so very grateful.. thankful.. for you, the community. This week it is my great pleasure to chat with Spring community legend Simon Martinelli...

This Week in Spring - June 3rd, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! I just finished recording my session with IntelliJ IDEA project lead Aleksey Stukalov about all the amazing features coming to IntelliJ IDEA to better support Java, Kotlin, and Spring developers. It went off without a hitch...

This Week in Spring - January 21st, 2025

Hi, Spring fans! Welcome to another rip-roaring installment of This Week in Spring! It's time to dive into this week's wondrous roundup! Good news, everybody! Spring Cloud AWS 3.3.0 is available! A neat video on stored procedures in Spring A very interesting article on the flow diagrams for Sprin...

AI Meets Spring Petclinic: Implementing an AI Assistant with Spring AI (Part II)

Recap of Part I In the first part of this blog series, we explored the basics of integrating Spring AI with large language models. We walked through building a custom ChatClient, leveraging Function Calling for dynamic interactions, and refining our prompts to suit the Spring Petclinic use case. ...

A Bootiful Podcast: Spring Security community legend Laur Spilca

Hi, Spring fans! In this installment I talk to Spring Security community legend Laur Spilca, live from the Spring I/O show in beautiful Barcelona!...

A Bootiful Podcast: Abdel Sghiouar, Cloud Native Developer Advocate at Google

Hi, Spring fans! Abdel Sghiouar is a senior Cloud Native Developer Advocate at Google, a co-host of the Kubernetes Podcast by Google and a CNCF Ambassador, and it was my pleasure to sit down with him at the amazing Spring IO event in Barcelona and catch up on all things Kubernetes and Google...

This Week in Spring - January 2nd, 2024

Hi, Spring fans! Happy New Year! As we step into 2024, full of hope and enthusiasm, welcome to the first installment of This Week in Spring. It's a time for new beginnings and resolutions, and what better way to start than by exploring the ever-evolving world of Spring? I hope your new year...

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 - 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...

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 - December 13th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! I truly, absolutely, can not believe that were nearly done with the year already! Have you made your new years resolutions? Submitted your expense reports? Its that time of the year when Im going to start focusing on staying...

A Bootiful Podcast: Java Champion, legendary engineer, and teacher Trisha Gee

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Java Champion, legendary engineer, and teacher Trisha Gee @trishagee bout her extraordinary career working at organizations like LMAX, MongoDB, Jetbrains, and her new books, Heads First Java, and Getting to Know IntelliJ IDEA...

This Week in Spring - July 7th, 2026

This Week in Spring - July 7th, 2026 Hi, Spring fans! Welcome to another installment of This Week in Spring! We've got a lot to cover and I've got a plane to catch so let's go! What's that over on Spring Initializr? It's JobRunr, that's what! My favorite distributed job execution engine has...

Spring AI Agentic Patterns (Part 5): Building Interoperable Agents with the Agent2Agent (A2A) Protocol

The Agent2Agent A2A Protocol is an open standard for seamless AI agent communication. It enables agents to discover capabilities, exchange messages, and coordinate workflows across platforms—regardless of their implementation. Spring AI A2A integrates the A2A Java SDK with Spring AI through Sprin...

A Bootiful Podcast: Spring cofounder Juergen Hoeller on the amazing Spring Framework 7 release

Hi, Spring fans! In this installment, we talk to the legendary cofounder of Spring itself, Juergen Hoeller, about the awesome new Spring Framework 7 release. Happy holidays, one and all!...

Towards Spring Tools 5 - Stereotypes and a new Structural View

When working on Spring projects, developers do not only think in terms of low-level concepts like classes and interfaces. When using Spring, you think about higher-level abstractions and concepts like services, repositories, configuration classes, entities, aggregate roots, and so on. To bring...

A Bootiful Podcast: Java community legend Victor Rentea

Hi, Spring fans! In this installment we talk to the legendary Victor Rentea. This episode was recorded live at Devoxx UK 2025...

A Bootiful Podcast: 'Just Use Postgres!' author Denis Magda

Hi, Spring fans! In this installment we talk to Java and distributed database ninja Denis Magda about his new book, "Just Use Postgres!", which looks at how to wield Postgres for a variety of use cases that an application developer should know...

This Week in Spring - July 29th, 2024

Hi Spring fans! Welcome to another installment of This Week in Spring! It's July 29th, 2024! I can hardly believe it! We're less than a month away from SpringOne 2024! Have you registered for either in-person attendance or the free livestreams yet? As always, we've got a ton of stuff to cover so...

Spring Tips: Further, Faster with Spring Boot 3.3

Hi, Spring fans! In this installment we look at ways to make your applications go further, faster, with AppCDS, GraalVM, AOT on the JRE, and Project CRaC coordinate restore at checkpoint springboot java graalvm programming coding...

This Week in Spring - May 7th, 2024

Hi, Spring fans! Welcome to another amazing installment of This Week in Spring! I'm in bellisima Rome, Italy, where I've just spent time in some fun meetings, and now I'm off to lovely London, UK, for Devoxx UK 2024. It's going to be amazing. If you're there, don't hesitate to say hi! I've got to...

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...

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...

This Week in Spring - July 11th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm in yummy, sunny Jakarta, Indonesia at the moment, preparing for a week of meetings and the SpringOne Tour Indonesia event later this week. I'll also be speaking in Kuala Lumpur, Malaysia on July 20th, 2023 . If you're in...

This Week in Spring - April 4th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you doin? Me, I'm exhausted! It's been quite the odyssey trying to get to Devnexus, but I made it, eventually! If you're at Devnexus, check out this roundup of interesting and awesome talks from the Spring team and...

This Week in Spring - August 30th, 2022

Hi, Spring fans! How are you? Howre you doin this fine tuesday morning? Im doing well, of course, because this week VMwares tentpole show - VMware Explore - is happening not even a mile from my home, here in San Francisco! And this is just the first one - therell be another show, my favorite show...

An update on Java 17+ adoption

As a follow-up to my blog post from last years SpringOne, it is time for an update on our Java 17+ baseline efforts! We established the new baseline on our main branches, with a few milestones out already. The feedback has been very positive, not only in terms of framework improvements but also i...

This Week in Spring - July 14th, 2026

This Week in Spring - July 14th, 2026 In two short months, on this date in September, Java 27 will be here! Who's excited? I'm excited! I'm in delightful Denver, CO, for the amazing UberConf. I just delivered a workshop that was scheduled from 09:00 to 17:00, but it went into overtime, and we jus...

cve-2026-47835 - HIGH - Spring AI vector store metadata filtering to handle special characters in Elasticsearch, OpenSearch, and GemFire Vector Stores

cve-2026-47835 - HIGH - Spring AI vector store metadata filtering to handle special characters in Elasticsearch, OpenSearch, and GemFire Vector Stores...

cve-2026-41856 - HIGH - Spring GraphQL Annotation Detection Vulnerability

cve-2026-41856 - HIGH - Spring GraphQL Annotation Detection Vulnerability...

A Bootiful Podcast: Daniel Garnier-Moiroux on his new book 'Testing Spring Boot Applications'

Hi Spring fans! In this installment I'm thrilled to have had the opportunity to sit down and talk to Daniel Garnier-Moiroux and talk about "Testing Spring Boot Applications," from Manning! testing springboot java kotlin springframework...

Spring AI Agentic Patterns (Part 1): Agent Skills - Modular, Reusable Capabilities

Agent Skills are modular folders of instructions, scripts, and resources that AI agents can discover and load on demand. Instead of hardcoding knowledge into prompts or creating specialized tools for every task, skills provide a flexible way to extend agent capabilities. Spring AI's implementatio...

A Bootiful Podcast: Apache Tomcat legend Mark Thomas (Happy new year!)

In this episode, I talk with Mark Thomas, the legendary and highly prolific committer to Apache Tomcat. Happy New Year!...

This Week in Spring - November 4th, 2025

Hi, Spring fans! Welcome to another all-out installment of This Week in Spring wherein we attempt to recap all that's new and novel in the wild, wacky, and wonderful world of Springdom. And this week, I'm doing so from an airport in Switzerland, en route to Malmo, Sweden, for the amazing Oredev...

AWS Bedrock Prompt Caching Support in Spring AI

In our previous blog post about Anthropic prompt caching, we explored how prompt caching dramatically reduces API costs and latency by reusing previously processed prompt content. We introduced Spring AI's five strategic caching patterns for Anthropic Claude models and showed how they automatical...

Spring Data JDBC and R2DBC 4.0 will support Composite IDs

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...

This Week in Spring - January 14th, 2025

Hi, Spring fans, and greetings from the island of St. Barths! Salut depuis l'île de Saint-Barthélemy! I'm on a bit of PTO and have been bouncing around from one beach to another with my family. I just landed on a winning combination for a beach: warm water, a restaurant/bar, and some for-pay seat...

What's new in Spring Modulith 1.3?

After half a year of development, Spring Modulith 1.3 GA has been released. It is packed with new features, improvements, and – best of all – community contributions. Let me walk you through some of the most interesting ones. Baseline Upgrades As usual, a new minor version of Spring Modulith...

A Bootiful Podcast: Thomas Vitale, author of Cloud Native Spring in Action

Hi, Spring fans! In today's episode I'm thrilled to sit down with my friend and Cloud Native Spring in Action author Thomas Vitale. This episode was recorded live at the amazing Spring IO 2024 event...

A Bootiful Podcast: Microsoft's Sandra Ahlgrimm on cloud, Java, AI, and more

Hi, Spring fans, from the amazing Spring IO conference in Barcelona, Spain! In this interview I talked to Microsoft's Sandra Ahlgrimm on all things cloud, Java, AI, and more. Also, a special and quick discussion with Spring IO founder Sergi Almar, who was last on the show in, I think, 2020!...

A Bootiful Podcast: Carl Azoury, Zenika founder and CEO

Hi, Spring fans! In this installment I talk to Zenika founder and CEO Carl Azoury, and friend to the community and a part of the Spring story for decades...

Spring Framework 6.2.0-M1: all the little things

The Spring Framework team has been busy reviewing the issue tracker in anger and reducing the number of opened issues. This was long overdue, with a number of issues being invalid or superseded in the meantime. This helped the team focusing on a more manageable amount of issues and we used the...