Spring Data Ahead of Time Repositories - Part 2

Concluding the Road to GA blog post series, let's explore benefits of Spring Data AOT Repositories. Back in May 2025, we first introduced Ahead of Time AOT repositories as a preview feature for JPA and MongoDB with the 3rd Milestone of the next Spring Data generation. This feature, in short, uses...

This Week in Spring - Spring Boot 4 edition! - November 25th, 2025

Hi, Spring fans! Welcome to another illustrious installment of This Week in Spring! It’s Thanksgiving week here in the United States. Thanksgiving is traditionally celebrated with friends and family every fourth Thursday of November, gathered around a table full of food and, usually, a giant...

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...

This Week in Spring - May 13th, 2025

Hi, Spring fans! As I write this, I'm at the amazing Code Remix event in Miami well, technically Tampa, Florida. I'll also be speaking at the Tampa JUG while I'm there, so look out! After that, I'll be headed back to Europe—a wee bit further north this time—to Stockholm for the amazing JForum...

This Week in Spring - September 17th, 2024

Hi, Spring fans! Last week I was in scintilliating Seoul, Korea, and then tantalizing Tokyo, Japan, and now I'm in marvelous Mumbai, India, at the airport, actually, headed to New Delhi, India. It's been a busy week for me and even busier a week for the community, so let's dive into it! Java 23 i...

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 - June 10th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's been a busy week indeed since we last spoke! Last week I was in Amsterdam for the IntelliJ IDEA conference and for the JSpring event in Utrecht. Now, I'm in Tokyo, Japan, for the JJUG Spring 2025 event. Importantly: both...

This Week in Spring - January 28th, 2025

Hi, Spring fans! Welcome to another rip-roarin' and exciting installment of This Week in Spring , wherein we look at the amazing week that was in the Spring community. And what a week it's been! In addition to tons of cool tooling and AI related stuff, this week saw the release of the first steps...

This Week in Spring - October 15th, 2024

Hi, Spring fans! Welcome to another rip-roaring and ever-so-riveting installment of This Week in Spring! I'm in Amsterdam, at the moment, rounding out a week between Antwerp, Beglium, and Amsterdam, the Netherlands. Today I'm off to Dubai for the fantastic GITEX/DevSlam event. Then I return back ...

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: Spring Batch Remote Partitioning, your easy button for data scale!

Hi, Spring fans! In this installment, Spring Developer Advocate Josh Long looks at how to use Spring Batch's remote partitioning support to easy-button your data processing scale out strategies. postgresql ai datascience data springboot java java21...

Spring Tips: Spring Boot 3.2

Hi, Spring fans! In this installment of Spring Tips, I look at the new Spring Boot 3.2 release, due to drop today, the 23rd of November 2023! 23-11-23! We're diving into the cool new features of Spring Boot 3.2 and Java 21. We'll explore how virtual threads from Project Loom make your code run...

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 - June 27th, 2023

Hi Spring fans! Welcome to another installment of This Week in Spring! This week I am in Seoul talking to developers about the latest-and-greatest in Spring Boot 3! There's so much great stuff coming, and so much great stuff already. There are a few things I'm super excited about. First, yesterda...

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...

This Week in Spring - Jan 3rd, 2023

Hi, Spring fans! Happy new year! Its 2023 already! Who saw that comin? I sure didnt. This year promises to be more amazing than ever, and I cant wait to be a part of it. As usual, the first week of January is when we mark the date of the first installment of this humble roundup, This Week in...

Introducing Spring Modulith

When designing software systems, architects and developers have plenty of architectural options to choose from. Microservice-based systems have become ubiquitous in the last couple of years. However, the idea of monolithic, modular systems has also regained popularity recently. Independent of the...

This Week in Spring - April 26th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! This week I was hoping to be in glorious Chicago, Illinois for the first in-person SpringOne Tour installment since the pandemic. But, alas, I couldnt go because - out of an abundance of caution, and since I was exposed to...

Spring Office Hours Podcast: S5E18 - The Latest from OpenAI, Anthropic and Spring AI 2.0

Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this episode, Dan and DaShaun catch up on the fast moving world of AI and what it means for Java developers. The guys will cover recent releases from OpenAI and Anthropic, then dig into Spring AI 2.0, which is n...

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

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

cve-2026-40999 - HIGH - Spring WS SSRF via unvalidated WS-Addressing reply destinations

cve-2026-40999 - HIGH - Spring WS SSRF via unvalidated WS-Addressing reply destinations...

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...

Next level Kotlin support in Spring Boot 4

Following the announcement of the strategic partnership between JetBrains and Spring in May, I would like to share a global update on various Kotlin-related features and documentation enhancements we have made recently, with the goal of making Spring Boot 4 the best framework to develop backend...

Spring gRPC Next Steps for 1.0.0

This is a new blog post in the Road to GA series, this time updating everyone on the plans to integrate Spring gRPC with Spring Boot 4. The original plan was to move the autoconfiguration from Spring gRPC into Spring Boot in time for the 4.0 release. Unfortunately we haven't been able to find the...

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...

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...

Spring Tips: Spring AI Redux

Hi, Spring fans! In this installment, brought to you with permission from the amazing Spring I/O 2024 conference event in Barcelona, Spain, I join Spring AI engineer Christian Tzolov for a keynote introducing some of the amazing new features in Spring AI. artificialintelligence ai springboot java...

A Bootiful Podcast: Spring Boot cofounders Phil Webb and Dr. David Syer on the occasion of the 10th Anniversary of Spring Boot 1.0

Hi, Spring fans! In this installment I talk to cofounders Phil Webb and Dr. David Syer, on the occassion of the 10th Anniversary of Spring Boot...

Spring Tips: Vector Databases with Spring AI

Hi, Spring fans! In this installment, we look at the amazing support for vector databases in Spring AI...

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...

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;...

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 Week in Spring - May 16th 2023

My friends, Spring Boot 3.1 is nearly upon us! It drops on 18 May, in just a few short days! There are a ton of amazing features in this new release and I hope you're already trying it out you know where. Here are some of my favorite features: Built in Docker Compose support - Have a...

Context Propagation with Project Reactor 2 - The bumpy road of Spring Cloud Sleuth

This post is a part of a series: 1. The Basics 2. The bumpy road of Spring Cloud Sleuth 3. Unified Bridging between Reactive and Imperative Spring Cloud Sleuth recently became Micrometer Tracing, part of the Micrometer project. Most of the tracing instrumentation is centered within Micrometer und...

This Week in Spring - February 21, 20223

Hi, Spring fans! Welcome to another installment of This Week in Spring! How're you? I almost forgot today was Tuesday! Here in the US, we had a three day weekend for President's day, and also I've been streaming for a few hours every day or almost every day on my little YouTube channel so the day...

cve-2026-47863 - MEDIUM - Reactor Core bufferTimeout fair-backpressure pipeline permanently hangs when upstream delivers items during an active flush

cve-2026-47863 - MEDIUM - Reactor Core bufferTimeout fair-backpressure pipeline permanently hangs when upstream delivers items during an active flush...

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...

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...

This Week in Spring - November 10th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! As I write this I am preparing for a flight to North Carolina first in flight!. This week's going to be busy, but next week even busier still! I'll be at AI By The Bay in San Francisco, AI Native Dev Con in NYC, and QCon SF i...

This Week in Spring - February 18th, 2025

Hi, Spring fans! It's the week of February 18th, 2025, and you know what that means? ConFoo and Devnexus are nearly here! Next week, I'll be traveling to amazing Montreal, Canada, to speak at the ConFoo show for an amazing community, poutine, and technology! Then, a few days later, it's off to...

Supercharging Your AI Applications with Spring AI Advisors

In the rapidly evolving world of artificial intelligence, developers are constantly seeking ways to enhance their AI applications. Spring AI, a Java framework for building AI-powered applications, has introduced a powerful feature: the Spring AI Advisors. The advisors can supercharge your AI...

A Bootiful Podcast: Cloud Legend Mark Fynes

Hi, Spring fans! In this installment I talk to Mark Fynes. Mark’s a field principal with Tanzu at Broadcom, building platforms with our Pivotal/VMWare/Broadcom customers for the past 10 years. Passionate technologist, working closely with developers, architects, IT-operations, security architectu...

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,...

A Bootiful Podcast: Avalara's Kumaresan Muthaliar on GraphQL in the heavily regulated, data intensive domain of tax

Hi, Spring fans! In this installment Josh Long @starbuxman talks to Kumaresan Muthaliar, senior technical lead at Avalara, about GraphQL in the heavily regulated, data intensive domain of tax...

This Week in Spring - SpringOne Essentials 2023 edition - January 24th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Today is a very day for you see, today we kick off SpringOne Essentials, the online incarnation of SpringOne, online. We'll see you live, on stream, in just a few hours!. SpringOne Essentials is going to be amazing, but befor...

This Week in Spring - SpringOne Essentials 2023 edition - January 24th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Today is a very day for you see, today we kick off SpringOne Essentials, the online incarnation of SpringOne, online. We'll see you live, on stream, in just a few hours!. SpringOne Essentials is going to be amazing, but befor...

A Bootiful Podcast: Kubernetes legend and friend Cora Iberkleid on Tanzu, Cartographer, and more

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Kubernetes legend and fellow Tanzu Developer Advocate Cora Iberkleid @ciberkleid about Kubernetes and Cartographer supply chains...

A Bootiful Podcast: Event streaming guru Jan Svoboda on Apache Kafka Design Patterns

Hi, Spring fans! In this installment Josh Long @starbuxman talks to event streaming guru at Confluent, the company behind Apache Kafka, Jan Svoboda about Apache Kafka design patterns. Kafka summit in London Europe end of April 2022 Kafka Summit London 2022 | April 25-26 | London, UK the Confluent...

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...