New in Spring 6.1: RestClient

Spring Framework 6.1 M2 introduces the RestClient, a new synchronous HTTP client. As the name suggests, RestClient offers the fluent API of WebClient with the infrastructure of RestTemplate. Fourteen years ago, when RestTemplate was introduced in Spring Framework 3.0, we quickly discovered that...

This Week in Spring - September 27th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! Its the last week of September, already! The years more done than not. The days are receding into darkness earlier. And the Pumpkin Spice Lattes are upon us. The darker and colder days are kind of a bummer, but Im stil excite...

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...

This Week in Spring – March 18th, 2025

Hi, Spring fans! I just got back from the amazing JavaOne show held in Redwood Shores. It was a fun, uproarious event and a great chance to reconnect with tons of friends, old and new. I love this community! One of the central highlights of this show? Java 24 is here, finally! And, as usual, we'v...

Spring Framework 6.2.0-M1: Overriding Beans in Tests

Spring Framework 6.2.0-M1 has been released, including changes that resolve more than one hundred issues. Among those are a range of new features in Spring's testing support. In this post, I’d like to walk you through one of these new testing features: Bean Overriding support. The previous state ...

Spring Cloud Azure 5.0 is now Generally Available

Were very pleased to announce that Spring Cloud Azure 5.0 is now generally available. This major release includes the following features, improvements, and documentation updates: Compatible with Spring Boot 3 and Spring Cloud 2022.0.0 Supports Passwordless Connections Updated Azure for Spring...

Spring Security OAuth reaches End-of-Life

The Spring Security OAuth and Spring Security OAuth Boot 2 auto-configuration projects have reached end of life. The Spring Security OAuth project has been replaced by the Client and Resource Server support provided by Spring Security and the Authorization Server support provided by Spring...

RestClient Support for OAuth2 in Spring Security 6.4

In Spring Security 6.2 and 6.3, we have worked to steadily improve configuration for applications using OAuth2 Client. Configuration for common use cases has been simplified by allowing applications to publish beans which are automatically included in the overall OAuth2 Client configuration durin...

This Week in Spring - March 5th, 2024

Hi, Spring fans! Welcome to another exciting roundup of This Week in Spring! I expect many of you are reading this for the first time, especially with Facebook and Instagram being down. People have been exploring all the other lesser-known corners of the web, looking for their daily "doom scroll....

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...

This Week in Spring - November 22nd, 2022 - Spring Boot 3 and Thanksgiving edition!

Hi, Spring fans! Its Tuesday, the 22nd of November, 2022, as I write this, which means were two days away from Spring Boot 3 and Thanksgiving. Spring Boot 3, Ive written about in abundance so I wont rehash that. If you want to learn more about some of the amazing new features in Spring Framework ...

Azure Spring Apps Enterprise is now generally available

Hi, Spring fans! This is a guest post by Julia Liuson, President, Developer Division, Microsoft Azure Spring Cloud is now Azure Spring Apps We launched Azure Spring Cloud with VMware in 2019 to solve common challenges developers, IT operators, and DevOps teams face when running Spring Boot...

This Week in Spring - March 26th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! Sam Brannen shares some good news: a null-safe Index operator for the Spring Expression Language SpEL is coming to Spring Framework 6.2! This is interesting, and a nice application of AI do I even need to spell out "artificia...

This Week in Spring - August 16th, 2022

Hi, Spring fans! Welcome to another wonder-filled installment of This Week in Spring! Its been a week! Sometimes I can scarcely believe it myself. And can you believe its August 16th already?? My daughters starting school this week! Were in the northern hemisphere, and Summer break is already ove...

Spring Tips: Learn Spring for GraphQL (parts 5 and 6 of an ongoing series)

Hi, Spring fans! In thi^^^ these installments, we continue our series introducing the Spring for GraphQL project. This series features Spring for GraphQL lead Rossen Stoyanchev @rstoya05 - whose work you may know from basically everything in the wide and wonderful world of Springdom having to do...

Announcing Spring AI MCP: A Java SDK for the Model Context Protocol

We're excited to introduce Spring AI MCP, a robust Java SDK implementation of the Model Context Protocol MCP. This new addition to the Spring AI ecosystem brings standardized AI model integration capabilities to the Java platform. What is MCP? The Model Context Protocol MCP is an open protocol th...

This Week in Spring - July 16th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's the middle of July! I can't believe it! Things have been just rushing by! did you see this awesome talk on observability by Tommy Ludwig and Jonatan Ivanov from Spring IO 2024? What is a ReadWriteLock? Spring for GraphQL...

Spring Cloud Azure 5.0 is now Generally Available

We're very pleased to announce that Spring Cloud Azure 5.0 is now generally available. This major release includes the following features, improvements, and documentation updates: Compatible with Spring Boot 3 and Spring Cloud 2022.0.0 Supports Passwordless Connections Updated Azure for Spring...

This Week in Spring - September 20th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring wherein I endeavor as best as I can to capture the latest-and-greatest in the wide, wacky, and wonderful world of Springdom! Naturally, I fail miserably basically every week. Theres no way I could hope to capture everything of...

This Week in Spring - January 23rd, 2024

Hi, Spring fans, and greetings from CERN, home of the famous Large Hadron Collider, where I'm speaking again at the VOXXED Days CERN 2017 event. It's been an amazing almost week here in lovely Switzerland, first in Lugano for VOXXED Days Ticino, and now in Geneva. I'm super excited to be here, bu...

How to integrate Hibernates Multitenant feature with Spring Data JPA in a Spring Boot application

For quite some time now, Hibernate has offered a Multitenant feature. It integrates nicely with Spring, but there is not much information about how to actually set it up, so I thought an example or two or three could help. There is already an excellent blog article, but it is a little dated and i...

This Week in Spring - June 18th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! I've just come from Paris, France, and now I'm in equally beautiful Krakow, Poland, for the amazing Devoxx PL event. We've got a ton of good stuff to dive into, so let's get going! In last week's installment of Spring Tips, I...

Spring Cloud Azure 5.0 is now Generally Available

We're very pleased to announce that Spring Cloud Azure 5.0 is now generally available. This major release includes the following features, improvements, and documentation updates: Compatible with Spring Boot 3 and Spring Cloud 2022.0.0 Supports Passwordless Connections Updated Azure for Spring...

CVE Report Published for Spring Tools

We have released STS 4.16.1 for Eclipse and Spring VSCode extensions 1.40.0 to address the following CVE report: - CVE-2022-31691: Remote Code Execution via YAML editors in STS4 extensions for Eclipse and VSCode Please review the information in the CVE report and upgrade immediately. Eclipse: STS...

This Week in Spring - July 19th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! This week Im trying to wind down some threads and take some vacation with my family. Its going to be an amazing time, indeed! But that doesnt stop the deluge of novelties and news in the wide world of Springdom, so weve got a...

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...

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...

This Week in Spring - 28 November, 2023

Hi, Spring fans! I hope everyone who celebrated Thanksgiving had a wonderful time. Did you indulge in too much turkey? Anyway, let's jump into this week's edition of This Week in Spring—a particularly special one for a couple of reasons. First, it's our first issue after the launch of Spring Boot...

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!...

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...

Using Spring for GraphQL with Spring Data Neo4j

Introduction This is a guest blog post by Gerrit Meier from Neo4j who maintains the Spring Data Neo4j module. A few weeks ago version 1.2.0 of Spring for GraphQL was released with a bunch of new features. This also includes even better integration with Spring Data modules. Motivated by those...

This Week in Spring - September 5th, 2022

Hi, Spring fans! How are you? Its a fantastic Tuesday, the 5th of September, 2022, and I couldnt be happier. Its also Labor Day weekend here in the US. It marks the unofficial end of summer, which is a bit sad. But, on the upside, its a four-day weekend for me! Im technically off today. So, youll...

Spring for GraphQL 1.0 Release

On behalf of the Spring for GraphQL team and every contributor, it is my pleasure to announce the 1.0 GA release. Its been 10 months since the project was announced and under 2 years since the first commit, unremarkably called "first commit". The project began with the modest goal to replace the...

This Week in Spring - June 25th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! As I write this I'm in beautiful Amsterdam, having visited with customers and spoken at a local Java User Group. Now I'm off to lovely London, UK. Last week I was in Krakow, Poland, for the amazing Devoxx PL event, and in Par...

Bootiful Spring Boot in 2024 (part 1)

NB: the code is here on my Github account: github.com/joshlong/bootiful-spring-boot-2024-blog. Hi, Spring fans! I'm Josh Long, and I work on the Spring team. I'm excited to be keynoting and giving a talk at Microsoft's JDConf this year. I'm a Kotlin GDE and a Java Champion, and I'm of the opinion...

Native Support in Spring Boot 3.0.0-M5

The Spring Team has been working on native image support for Spring Applications for quite some time. After 3+ years of incubation in the Spring Native experimental project with Spring Boot 2, native support is moving to General Availability with Spring Framework 6 and Spring Boot 3! Native image...

This Week in Spring - May 31st, 2022

Hi, Spring fans! And welcome to another installment of This Week in Spring! Ive just returned from three wonderful weeks overseas and now, Im pleased as punch to convey, that Im home! And hopefully, COVID-19 free! Who knows what sort of nonsense I caught on the flight home, anyway. Some things, I...

This Week in Spring - Spring Boot 3.2 edition - November 21st, 2023

Hi, Spring fans! Welcome to another epic installment of This Week in Spring! As amazing as the week's already been, it's all leading up to this Thursday - Thanksgiving day! - when we release Spring Boot 3.2! and yes, I am very grateful. This release is stuffed to the gills with a ton of new...

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...

Context Propagation with Project Reactor 1 - The Basics

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 Boot 3 and Spring Framework 6 brought us a unified and consistent way to enable Observability in applications that use Micrometer. The evolution from...

MCP Authorization in practice with Spring AI and OAuth2

Last month, we explored how to secure Spring AI MCP Servers1 with the OAuth2 authorization framework. In the conclusion of that article, we mentioned we'd explore using standalone Authorization Servers for MCP Security and deviate from the then-current specification. Since we published the articl...

This Week in Sprng - March 11th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's a busy week as always, fresh off the rush that was Devnexus and busily preparing for the fun that is JavaOne! It's going to be epic! want to learn about dependency injection, auto-configuration, Spring Framework, Spring...

This Week in Spring - November 12th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! Spring Cloud 2024.0.0-RC1 aka Moorgate has been released In this installment of A Bootiful Podcast , I talk to Gradle developer advocate Baruch Sadogursky good news everybody! GraalVM will now support jcmd, which allows you t...

Deploy and Scale Spring Batch in the Cloud – with Adaptive Cost Control

May 21, 2024, at 9 AM PST You can now use Azure Spring Apps to effectively run Spring Batch applications with adaptive cost control. You only pay when batch jobs are running, and you can simply lift and shift your Spring Batch jobs with no code change. Spring Batch is a framework for processing...

This Week in Spring - Tuesday, April 23rd, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! We've had a really busy, wonderful week, as always, so let's dive right into it! We want you! ...to submit a talk to SpringOne 2024, in sunny Las Vegas! Hurry, the CFP closes May 3rd! Spring Shell 3.1.11, 3.2.4, and 3.3.0-m1...

This Week in Spring - March 12th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! And what a week it's going to be! Do this first: we need your help! Please answer some questions in our State of Spring survey! Join me for a look at the latest-and-greatest, chronicling how I got started with Spring Boot in...

This Week in Spring - May 30th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! This installment I write on the day of my daughter's High School graduation, an auspicious day indeed! There's a lot to get through this week, though, and I have a graduation to get to, so let's dive right in! Spring...

Web applications and Project Loom

Introduction Project Loom aims to bring "easy-to-use, high-throughput, lightweight concurrency" to the JRE. One feature introduced by Project Loom is virtual threads. In this blog post, we'll be exploring what virtual threads mean for web applications using some simple web applications deployed o...

This Week in Spring - January 9th, 2023

Hi, Spring fans! As I write this Im on a plane winging my way to Helsinki, Finland. A new year and new journeys begin. Its going to be cold there. Wish me luck! Do you know what always warms me up? The thrill of learning. And this weeks no different. This week weve got some good stuff line up so...

SBOM support in Spring Boot 3.3

Spring Boot 3.3.0 has been released, and it contains support for SBOMs. SBOM stands for "Software Bill of Materials" and describes the components used to build a software artifact. In the context of this blog post, that's your Spring Boot application. These SBOMs are useful because they describe...