This Week in Spring - May 9th, 2023

Hi, Spring fans! Welcome to another wonderful, fancyful installment of This Week in Spring! I was just at the first Devoxx GR, in the sunny mediterranean city of Athens, Greece. Uh, yah, this was a good'un. If you can get to it, you should. Don't miss next year's installment if you missed this on...

A Bootiful Podcast: Java Champion Ken Kousen on Gradle, Java, Kotlin, Mockito, and more

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Java Champion Ken Kousen @kenkousen, live from the Great International Developer Summit 2023 in beautiful Bangalore, India, about Gradle, the Kotlin DSL, Java, and so much more Check out Ken's awesome Youtube channel...

This Week in Spring - May 2, 20223

Hi, Spring fans! Welcome to another installment of This Week in Spring! You realize it's already May, 2023? Time's flying, way too quickly! I just got back from Bangalore, India, where I spoke at the amazing Great International Developer Summit, one of the all time best shows ever, and now I'm...

A Bootiful Podcast: Sebastien Deleuze and James Ward on a Bootiful Podcast

Hi, Spring fans! In this installment, recorded live from Kotlin Conf 2023 in Amsterdam, I talk to Kotlin luminaries Sébastien Deleuze and James Ward about Kotlin's future, web assembly, and more...

This Week in Spring - April 25th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you? I'm en route to Bangalore, India, via Frankfurt, for the Developer Summit 2023 edition. It's going to be a ton of fun, and I hope you won't miss it! para Spring Boot 3.1.0-RC1 available now One of the most exciti...

A Bootiful Podcast: Gradle Developer Advocate, Java Champion, and legend Trisha Gee

Hi, Spring fans! In this installment, Java Champion and legend Trisha Gee @trishagee rejoins the show to talk about Gradle, developer productivity, and so much more...

Security Bypass With Wildcard Pattern Matching on Cloud Foundry

In Spring Boot versions 3.0.0 - 3.0.5, 2.7.0 - 2.7.10, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, an application that is deployed to Cloud Foundry could be susceptible to a security bypass. Specifically, an application is vulnerable when all of the following are true: NOTE:...

This Week in Spring - April 18th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! This week, I just returned from Western Europe for Devoxx FR Paris and Kotlin Conf Amsterdam. I went home, saw my family, did some laundry, and then turned right back around to head to Chicago, Illinois, for a special joint...

Empty SecurityContext Is Not Properly Saved Upon Logout

In Spring Security, versions 5.7.x prior to 5.7.8, versions 5.8.x prior to 5.8.3, and versions 6.0.x prior to 6.0.3, the logout support does not properly clean the security context if using serialized versions. Additionally, it is not possible to explicitly save an empty security context to the...

A Bootiful Podcast: Sonatype's Steve Poole and Gradle's Justin Reock on Improving Developer Productivity without compromising on things like security

Hi, Spring fans! Welcome to another installment of a Bootiful Podcast! In this installment, recorded at Devnexus in Atlanta, GA, I talk to newcomer to the show Steve Poole, from Sonatype, and Justin Reock, from Gradle, about improving developer productivity without comprising on things like...

This Week in Spring - April 11th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! As I write this I am in Amsterdam, Netherlands, preparing to speak at the Utrecht JUG tonight along with fellow Java Champion Trisha Gee. We're not speaking together, but instead it's a double header: she'll speak first, then...

A Bootiful Podcast: José Paumard, Java Champion alumnus and Java legend, on Project Loom, Valhalla, and more, from Devnexus 2023!

Hi, Spring fans! Welcome to another installment of A Bootiful Podcast. In this installment I'll talk to legendary Oracle Java Champion alumnus, Java advocate, professor emeritus, and all around amiable fellow José Paumard, recorded at the amazing Devnexus 2023 event! José's English-language Youtu...

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...

A Bootiful Podcast: Spring Integration lead Artem Bilan on the latest in Spring Integration 6

Hi, Spring fans! In this installment Josh Long @starbuxman talks to Spring Integration lead Artem Bilan @artembilan about the latest and greatest in Spring Integration. Spring Integration makes it easier to connect an increasingly larger ecosystem of disparate services and systems. SHOW NOTES: I...

Context Propagation with Project Reactor 3 - Unified Bridging between Reactive and Imperative

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 We concluded the last article with the thought that Spring Cloud Sleuth’s MANUAL context propagation strategy is both performant and provides correct...

Context Propagation with Project Reactor 3 - Unified Bridging between Reactive and Imperative

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 We concluded the last article with the thought that Spring Cloud Sleuth’s MANUAL context propagation strategy is both performant and provides correct...

This Week in Spring - March 28th, 202

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm reporting to you from Los Angeles, where my family and I have gone for my daughter's spring break. We're going to survey some prospective colleges and we're going to Disneyland. Needless to say, I'm doubly glad to have al...

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...

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...

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...

A Bootiful Podcast: Mark Thomas, Apache Tomcat contributor extraordinaire

Hi, Spring fans! Welcome to another installment of A Bootiful Podcast! In this installment, Josh Long talks to longtime Apache Tomcat contributor extraordinaire Mark Thomas I wrote a free white paper on using Spring Boot 3 AOT and GraalVM. Learn the secrets to working with Spring Boot 3 and Graal...

Start from zero and scale to zero – Azure Spring Apps consumption plan

We are launching a new way to pay for Azure Spring Apps -- the consumption pricing plan. This plan is now in public preview so you can start creating and deploying apps today. This new plan is super-efficient because you can start from zero and scale to zero vCPU. You get more straightforward...

Spring Data JPA introduces query parser!

The Problem One of Spring Data JPA’s handy features is letting you plugin in custom JPA queries through its @Query annotation. This allows some flexiblity because you are still able to offer sort parameters to the consumers of your app. Check out the example below: interface SampleRepository...

This Week in Spring - March 21st, 2023

Hi, Spring fans! Welcome to another rip roaring installment of This Week in Spring! It's March 21st and today they announced Java 20! It's an exciting time to be a Java developer. Java 20, of course, is just another amazing installment before Java 21, which comes out in six short months, includin...

Spring Tips: Vaadin Flow and Spring Boot 3

Hi, Spring fans! In this installment, we'll look at the fantastic Vaadin Flow library, which has recently been updated for Spring Boot 3, and how it can help you be happier. the code is available, as usual, here this episode features special guest Marcus Hellberg, VP developer relations from...

Insertion of Sensitive Information into Log Sourced from Failed Revocation of Tokens

In Spring Vault, versions 3.0.x prior to 3.0.2 and versions 2.3.x prior to 2.3.3 and older versions, an application is vulnerable to insertion of sensitive information into a log file when it attempts to revoke a Vault batch token. Specifically, an application is vulnerable when all of the...

Security Bypass With Un-Prefixed Double Wildcard Pattern

Using "" as a pattern in Spring Security configuration with the mvcRequestMatcher creates a mismatch in pattern matching between Spring Security and Spring MVC, and the potential for a security bypass...

Spring Expression DoS Vulnerability

In Spring Framework versions 6.0.0 - 6.0.6, 5.3.0 - 5.3.25, 5.2.0.RELEASE - 5.2.22.RELEASE, and older unsupported versions, it is possible for a user to provide a specially crafted SpEL expression that may cause a denial-of-service DoS condition...

Kotlin DSLs in the world of Springdom

Kotlin is a beautiful language that makes it trivial to take old Java libraries and make them much more concise, just by virtue of the Kotlin syntax itself. It shines, however, when you write DSLs. Here's some inside baseball for you: the Spring teams do their level-headed best to be cohesive, to...

A Bootiful Podcast: Spring Batch lead Mahmoud Ben Hassine on the latest and greatest in 2023

Hi, Spring fans! Welcome to another installment of A Bootiful Podcast! In this installment, Josh Long @starbuxman talks to Spring Batch lead Mahmoud Ben Hassine @FMBENHASSINE about the latest and greatest in Spring Batch. notes Submit your talk to SpringOne@Explore, being held August 21-24, 2023,...

This Week in Spring - March 14th, 2023

Hi, Spring fans! Happy Pi π day! And, welcome to another installment of This Week in Spring! It's pouring cats and dogs here in San Francisco! The news is talking about atmospheric rivers; I don't know what that means but I don't know that I want to find out. Anyway, all that to say: I'm glad as...

A Bootiful Podcast: Google Cloud Java Advocate Aaron Wanjala

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Google Cloud Java advocate Aaron Wanjala @ AaronMDubya about Spring Framework for Google Cloud...

This Week in Spring - March 7th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's an amazing week, and this week we've got a lot to look at. Let's dive right into it. Spring Cloud Function for Azure Function Spring Data 2022.0.3 and 2021.2.9 released Spring R2DBC for Reactive Relational Databases in...

A Bootiful Podcast: Spring Cloud Stream and Spring Cloud Function lead Oleg Zhurakousky

Hi Spring fans! Welcome to another installment of a bootiful podcast! in this installment, our pal Oleg Zhurakousky @zoleg, lead of Spring Cloud Stream and Spring Cloud Function, rejoins the show to talk about the latest and greatest in stream processing...

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 - February 28th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm writing this installment from a hotel room in Dallas, Texas, in the USA. Last night I had the privilege of hanging out with some of my friends from the local Java scene. Today I meet with customers. It's going to be a nic...

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...

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...

From Spring Native to Spring Boot 3

Today, we are finishing to transition the Spring support for building native executables from the experimental Spring Native project to the official Spring Boot GraalVM native image support. In practice, that means we are archiving the Spring Native GitHub repository and moving it to the...

A Bootiful Podcast: It's Glenn Renfro! Listen to this episode if you want to feel better

Hi, Spring fans! Today Josh Long @starbuxman talks to Atlanta JUG, Devnexus, Spring Cloud Task, Spring Integration, Spring Cloud Dataflow luminary, and the living embodiment of the word "joy:" Glenn Renfro @cppwfs Watch the podcast in living color on Youtube!...

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...

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...

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 - February 14th, 2023

Hi, Spring fans! It's early Tuesday morning for me. I'm preparing to head to Chicago, Illinois to meet some customers and have myself a grand ol' time in the windy city. I hope you're doing well, I certainly am. A Bootiful Podcast: opensource, Spring Cloud, and Kubernetes maestro Abel Salgado...

A Bootiful Podcast: opensource, Spring Cloud, and Kubernetes maestro Abel Salgado Romero

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Abel Salgado Romero @abelsromero about open source, Kubernetes, and building Kubernetes controllers with Spring Boot and GraalVM native images...

This Week in Spring - February 7th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's Tuesday, February 7th, 2023, as I write this and I'm so very glad to be talking to you. How're you doin'? Some housekeeping: I'll be doing more live streams over on my YT channel - join me and we'll talk shop. I'm going...

The 2022 State of Spring Survey Report

Hi, Spring fans! You're awesome! I know you're awesome. You know you're awesome. And the Spring team works for you. We like working for you because you dream awesome dreams and build awesome things. And we can't work effectively with and for you if we don't know where everyone stands. Every year ...

An ever green, ever great way to learn Spring

I could do this post every week. Wait, I do do this post every week! It's called This Week in Spring, and in it I recap a lot of interesting new bits of content on the internet that elaborate or introduce or innovate. I love those points of data. They help. But they're almost never a full-guided...

A Bootiful Podcast: Moderne founder Jon Schneider on OpenRewrite, modernizing code bases en masse, freedom and responsibility, and more

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Moderne @moderneinc founder Jon Schneider @jonkschneider on OpenRewrite, modernizing code bases en masse, freedom and responsibility, and more...

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...