This Week in Spring - June 9th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring! Tons of releases coming out today and this week! So make sure you're pulling in the latest posts, as often as possible! Spring LDAP 2026.06 Releases - Contains CVE Fix Spring Framework 7.0.8 and 6.2.19 Available Now Spring...

A Bootiful Podcast: JetBrains' Marit van Dijk

hi Spring and IntelliJ IDEA fans! In this installment I talk to my friend and JetBrains Developer Advocate extraordinaire Marit van Dijk! This episode was recorded at JNation, an amazing show in Coimbra, Portugal! jetbrains java jnation...

This Week in Spring - June 2nd, 2026

Hi, Spring fans, and welcome to another momentous installment of This Week in Spring! A lot to get into this week, but let's first take some time to address the meta: where are the May releases? If you read our May 11th post, you know they've been delayed. We wanted to speak a bit more about why ...

A Bootiful Podcast: Microsoft's Martijn Verburg

Hi Spring fans! In this installment, I talk to my friend from JClarity and Microsoft fame, fellow Java champion, and Java guru Martijn Verburg ai microsoft java jclarity performance...

This Week in Spring - May 26th, 2026

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm in Coimbra, Portugal, where I just did my usual shtick on the latest and greatest in Spring Framework 7.x, Spring Boot 4.x, and Spring AI 2.x. It was a ton of fun, and I want to thank everybody who came out. Last week I w...

A Bootiful Podcast: Hadi Hariri, Jetbrains legend

Hi Spring and Kotlin fans! In this installment, I have the privilege of talking to my old friend and JetBrains legend Hadi Hariri, recorded live from Kotlin Conf 2026 in Munich, Germany! kotlin jvm java springboot...

This Week in Spring - May 19th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring!, this one written from the back of a taxi racing to the local Frankfurt train station, where I'll take a train to Munich for the amazing Kotlin Conf 2026 edition, where I'll be part of the keynote and deliver a talk on the...

Spring Office Hours Podcast: S5E16 - May Release Train Shift & What's Coming in Spring Boot 4.1

Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this episode, Dan and DaShaun break down the recently announced shift of the May release train from May 11-22 to June 1-5, and what that means for your upgrade planning across the Spring portfolio. They also dig...

A Bootiful Podcast: the legendary Adib Saikali

Hi, Spring fans! I'm so thrilled to have been able to sit down and talk to my friend Adib Saikali!...

This Week in Spring - May 12th, 2026

Hi, Spring fans! As I write this I am in Miami, FL at the CodeRemix.ai show, focused on the wide and wonderful world of OpenRewrite and Moderne. I've got a talk to give so let's dive right into it! a quick note about the upcoming release train dates in last week's installment of A Bootiful Podcas...

Spring Office Hours Podcast: S5E15 - Upgrading Spring and OSS Security

Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this episode, Dan and DaShaun tackle two challenges every Spring developer faces: keeping applications up to date and staying ahead of security vulnerabilities in open source dependencies. They explore how AI...

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...

This Week in Spring - May 5th, 2026

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's May 5th, 2026, and I'm in Mainz, Germany, for the legendary JAX conference! It's been infinitely far too long since I've been at this amazing show, and I'm oh-so happy to be back here! Tonight, after my two talks here, I...

Spring Office Hours Podcast: S5E14 - Spec Driven Development with Simon Martinelli

Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this episode, Dan and DaShaun are joined by Java Champion, Vaadin Champion, and Oracle ACE Pro Simon Martinelli to talk about Spec-Driven Development. With AI reshaping how we write code, Simon makes the case th...

Ronald Dehuysser, founder of JobRunr, on their ambitious new JavaClaw-like agent runtime

Hi Spring fans! In this installment, I talk to my friend and JobRunr founder Ronald Dehuysser about the latest and greatest, and their new "JavaClaw" project!...

This Week in Spring - April 28th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring! As I write this, I'm on PTO in beautiful Santorini, Greece, catching up on some news and about to cruise the islands for some sightseeing. There's nothing quite like springtime in the Mediterranean! I couldn't dream of enjoyin...

A Bootiful Podcast: A Bootiful Podcast: Dr. Venkat Subramaniam and James Ward on Intelligent Kotlin and So Much More

I am beyond thrilled that I got to co-present with two legends, Dr. Venkat Subramaniam and James Ward, at Voxxed Days Amsterdam, and even more so that they both sat down for a quick discussion with me right before that presentation. Enjoy!...

This Week in Spring - April 21st, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring! What a week it's been since we last talked. I was in Barcelona, Spain, for the amazing Spring I/O event there. It has become my favorite show, full stop. Just such an amazing experience. So many wonderful things going on there...

Spring Office Hours Podcast: S5E13 - Community Potluck

Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this Potluck episode, Dan and DaShaun open up the floor to the community, answering your questions on Spring Boot, Spring AI, Spring Security, and whatever else is on your mind. Potluck episodes are shaped...

A Bootiful Podcast: the legendary Craig Walls

Hi Spring fans! In this installment we talk to the legendary Craig Walls, author of Spring In Action , Spring AI in Action , and more!...

Spring AI Agentic Patterns (Part 7): Session API — Event-Sourced Short-Term Memory with Context Compaction

A New Session API for Spring AI — Structured, Compactable, Multi-Agent-Ready Part 7 of theSpring AI Agentic Patterns series completes the memory picture. After covering Agent Skills, AskUserQuestionTool, TodoWriteTool, Subagent Orchestration, A2A Integration, and AutoMemoryTools for long-term...

This Week in Spring - April 14th, 2026

Hi, Spring fans! ¡Hola from Barcelona, Spain! I'm at the amazing Spring I/O event, hanging out with some of the amazing Spring ecosystem developers! Life is amazing here in the warm sun of springtime. There's a lot to look at this week, so let's dive right into it! Another nice tutorial on how to...

A Bootiful Podcast: Mark Kropf on AI orchestration

Hi Spring fans! I was delighted to get a chance to sit and talk to my pal and Pivotal alum Mark Kropf about his efforts around orchestrating AI. This doesn’t have to do with the JVM or Spring, per se, but it’s an interesting discussion nonetheless...

Spring Office Hours Podcast: S5E12 - Developer Soft Skills with Arun Gupta

Join Dan Vega and DaShaun Carter for another essential update from the Spring ecosystem. In this episode, the guys are joined by DevRel and Java legend Arun Gupta to discuss a topic often overlooked but vital for career longevity: soft skills for developers. Drawing from his decades of experience...

This Week in Spring - April 7th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring! It's April 7th, 2026, and I'm on the road! I started the journey for the amazing Voxxed Days Amsterdam show and am now winding my way through France. I visited Colmar, a beautiful city from which the animators on Disney's Beau...

Spring AI Agentic Patterns (Part 6): AutoMemoryTools — Persistent Agent Memory Across Sessions

File-Based Long-Term Memory for Spring AI Agents Agents are only as useful as what they remember. Spring AI's Chat Memory stores the full conversation and can persist it across restarts, but when the window fills, the oldest messages are evicted. The upcoming Session API will add recursive...

A Bootiful Podcast: Java developer advocate Ana-Maria Mihalceanu

I had a wonderful chat with Java Developer Advocate Ana-Maria Mihalceanu about Java Flight Recorder, Project Babylon, Project Panama, and so many other exciting things in the Java ecosystem...

This Week in Spring - March 31st, 2026

Hi, Spring fans! Welcome to another fun edition of This Week in Spring! I'm writing to you from beautiful Amsterdam ahead of the wonderful Voxxed Days Amsterdam event, and I'm really looking forward to it. If you're there, please come say hello! Also, be aware that I'll be speaking at the Paris J...

A Bootiful Podcast: Daniel Garnier-Moiroux on MCP Security

Hi Spring, AI, Spring AI, security, and Spring Security fans! In this installment I talk to the legendary Daniel-Garnier Moiroux! ai mcp security java...

This Week in Spring - March 24th, 2026

Hi, Spring fans! Welcome to yet another rip-roarin' installment of This Week in Spring. As usual, we've got a ton to look into, so let's dive right in! Happy 22nd birthday to Spring Framework, released this day 22 years ago! and of course, next week, 1 April 2026, marks 12 years since Spring Boot...

A Bootiful Podcast: Cay Horstmaan, legendary Java professor, author, lecturer

Hi, Spring fans! In this installment, we talk to the legendary Java author, professor, and Java Champion Cay Horstmann, whom you might know from classics such as "Core Java." his web site And of course even the most cursory search will land you at his books... javaone java...

Blending Chat with Rich UIs with Spring AI and MCP Apps

The way humans typically interact with AI is via a chat-style interface such as ChatGPT or Claude Desktop. In fact, the ability to converse with an AI in natural language is perhaps one of the most amazing things about this technology. It lets humans talk to computers in human terms, rather than...

This Week in Spring - March 17th, 2026

Hi, Spring fans! Welcome to another rip-roaring installment of This Week in Spring , which I'm posting ahead of my keynote at the amazing JavaOne 2026 event here in sunny San Francisco, California! I love Piotr's latest post on using local AI models with LM Studio and Spring AI Did you see the ne...

A Bootiful Podcast: Spring Messaging Legend Soby Chacko

Hi, Spring fans! In this installment, we talk with the legendary Soby Chacko about Apache Kafka, Spring AI, and much more! apachekafka kafka...

This Week in Spring - March 10th, 2026

Hi, Spring fans! Welcome to another installment of This Week in Spring. As I write this, I am preparing for a trip to Rust, Germany, for one of the best Java conferences in Europe: JavaLand, along with its new companion event, DevLand. It should be fun. Will you be around? If so, say hi. We have ...

This Week in Spring - March 9th, 2026

Hi Spring fans! Welcome to another rip-roaring installment of This Week in Spring! I'm writing this in an Uber en route to the airport to get to awsome Atlanta, GA, for Devnexus 2026! Who's goin'? You goin'? We - the Spring team - will be there in force! Come say hi at the boothes or come see our...

A Bootiful Podcast: Neo4j legend Jennifer Reif

Hi, Spring fans! In this installment, I talk to Jennifer Reif, developer advocate at Neo4J, about graph RAG, graph databases, GraphQL, Neo4J, Spring Data Neo4J, and more. neo4j graphRag AI artificialintelligence...

This Week in Spring - March 3rd, 2026

Hi Spring fans! Welcome to another rip-roaring installment of This Week in Spring! I'm writing this in an Uber en route to the airport to get to awsome Atlanta, GA, for Devnexus 2026! Who's goin'? You goin'? We - the Spring team - will be there in force! Come say hi at the boothes or come see our...

Moving beyond Strings in Spring Data

If you've worked with data access in Java and especially with Spring Data for a while, then you are familiar with various Query and Update programming models. You write data access code. You refactor a property name. You run your tests. They fail. Your query strings? Still pointing to the old...

A Bootiful Podcast - John Willis, author of 'Rebels of Reason'

Hi Spring fans! In this installment I sit down with DevOps legend and industry analyst extraordinaire John Willis and talk about his new book Rebels of Reason: The Long Road from Aristotle to ChatGPT and AI's Heroes Who Kept the Faith , and talk about the nature of the ecosystem, AI, the role of...

Optimizations in Spring MVC

Spring Fruits Benchmark Abstract Benchmarks are tricky to do well, and the results are often hard to interpret. This analysis attempts to go beyond a simple headline number to explore how performance varies with data set size. The results show that while results might be disappointing for a given...

This Week in Spring - February 24th, 2026

Hi, Spring fans! Welcome to another awesome and oh-so-agentic week in Spring! We've got a ton to look into, and I've got even more to prepare for next week's DevNexus event in Atlanta, GA, so let's dive right into it! Be sure to say "hi" if you're going to be there, though! You've heard of Agent...

A Bootiful Podcast: Glenn Renfro on Java and Spring community legend and my friend - on Devnexus and more

Hi, Spring fans! In this installment I talk to the amazing Glenn Renfro about Spring Batch, Spring Integration, Spring AI, and much more — plus why you should definitely register to attend the amazing Devnexus event in Atlanta, GA!...

This Week in Spring - February 17th, 2026

Hi, Spring fans! Welcome to another rip-roaring installment of This Week in Spring! It's Lunar New Year or Chinese New Year for billions of people around the world and to those who celebrate, Happy Chinese/Lunar New Year 新年快乐! Or Happy Spring Festival 春节快乐! My favorite kind of festival! In honor ...

A Bootiful Podcast: Java Champion and hilarious friend, Richard Fichtner

Hi, Spring fans! I've been waiting for this episode for so long! Today, we're finally joined by my friend Richard Fichtner, who so took pity on my plight waiting for music to be added to the GraalVM that his company, XDev Software, created the music-maven-plugin, the best Maven plugin, ever! This...

This Week in Spring - February 10th, 2026

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's February 10th, 2026, as I write this from lovely London, UK. I spoke at the local Java User Group here last night, had a wonderful time. Tomorrow, I'm going home. It's been fun, but it's time to conclude this roller...

A Bootiful Podcast: JetBrains and Spring community legend Marco Behler

hi, Spring fans! In this installment I have the privilege of talking to JetBrains legend Marco Behler...

This Week in Spring - February 3rd, 2026

Hi, Spring fans! This week I'm in northern Europe. I went on the Vaadin cruise from Finland to Sweden, gave a talk on a boat, then arrived in Stockholm in time for the amazing JFokus 2026 event where I had the privilege yesterday of doing a deep dive with my pal James Ward on Spring AI and agenti...

A Bootiful Podcast: Start Your Year with Java Right with Java Developer Advocate Billy Korando

Hi, Spring and Java fans! In this episode I am beyond delighted to talk Java developer advocate and longtime friend of the show Billy Korando about the latest-and-greatest in the Java ecosystem...

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...