Marcin Grzejszczak

How do you like the new stubborn.sh docs? docs.stubborn.sh your feedback is invaluable! #consumerdrivencontracts #springcloud contract

Yup! It's official. Spring Cloud Contract is becoming stubborn.sh

Tell your agent to use IntelliJ IDEA functionality using the IntelliJ MCP server. If you're also interested, you can see the supported tools here: www.jetbrains.com/help/idea/mc... "better quality, fewer tokens burnt" - Thanks @toomuchcoding.com, I couldn't have said it better myself!

🍃 From Contracts to Confidence: Spring Cloud Contract 5 in the Age of AI by @toomuchcoding.com @ Spring I/O 2026 ▶️ Video: youtu.be/WxyUF4iISDI #springio26

The #SpringCloud team is pleased to announce a pair of releases: Spring Cloud 2025.0.3 and 2025.1.2. These releases contain bug and CVE fixes and a handful of enhancements. OSS support for 2025.0.3 ends soon (June 2026). 2025.1.2 is compatible with #SpringBoot 4.0.x and the newly released 4.1.x.

@toomuchcoding.com & Jakub Pilimon discuss how typo broke production and the fix became a framework. They also look at where this is going next. Capture real traffic, generate contracts automatically, and let people review what matters. 🎧 #GOTOpodcast: gotopia.tech/podcast

In the age of AI tests are more important than ever, they are the guardrails for LLMs. Contract tests are essential for you to guard integrations. Check stubborn.sh as an implementation of contract tests with Spring Cloud Contract (works for npm too!)

There's no better place to make an announcement than SpringIO Barcelona! I'm happy to announce stubborn.sh - a broker for Spring Cloud Contract contracts! Check the demo at demo.stubborn.sh

🚀 Datasource Micrometer v1.4.1 & v2.2.1 have been released. Highlights • GraalVM hints for SPRING_PROXY • Fix ClassLoader for SpringJdbcProxyFactory Release Notes • github.com/jdbc-observa... • github.com/jdbc-observa... #springboot #micrometer #observability #jdbc

Today I've managed to officially confirm with the first company to deliver a workshop similar to this one maven.com/toomuchcodin... ! Around 40 people 😱! If your company is also interested ping me 💪

Just FYI on April 1st, the TOOMUCHCODING promo code that gives you a 200$ discount will be turned off. If there's a discount it will not be that high anymore so that's your last chance really to use it! Use this link to get your discount now: maven.com/toomuchcodin...

A junior dev fixed a typo. It broke production. That bug eventually led to #SpringCloudContract. @toomuchcoding.com sits down with Jakub Pilimon to talk 15y of Spring, why #observability is missing context & how AI might fix the contract testing adoption problem for good 👇 youtu.be/D-yp3sB8cu0?...

Another dream come true! It was such honor and pleasure to have been interviewed by Jakub Pilimon for @gotocon.com . Enjoy! www.youtube.com/watch?list=P...

Aaaand I have my first student for the June's cohort! Be like Wojciech! Let's Generate, Break and then Fix stuff with AI 😀 maven.com/toomuchcodin...

Do you know that there are already 100 people on the waitlist of maven.com/toomuchcodin... workshop? And do you know that you can get 200$ discount with the TOOMUCHCODING promo code? The offer is valid until the end of March. There will not be any such discount again!

Final call! In 4 hours we start the lightning lessons about breaking #AI code in 60 seconds! maven.com/p/4b47ed/wat... Join me - it's going to be fun!

How time flies! In about 20 hours I'm running my lightning lesson! maven.com/p/4b47ed/wat... tell your friends, tell your family, bring your dog - it's going to be fun!

Claude is down... I remember that I used something to code myself one day, but what was that? 🤔

On Thursday 18:00 CEST I'm going the Lightning Session about me breaking AI generated apps. There are about 50 people already registered to watch - come and join us! Take your kids, your grandmother, your dog, all of them can start using AI! maven.com/p/4b47ed/wat...

Hey 👋 just a friendly reminder that on Thursday at 18 cest I'll be running a free (that's a good price!) lightning session about creating, running, breaking and fixing AI apps! Check it out here maven.com/p/4b47ed/wat...

#AI can generate microservices in seconds. But it usually forgets timeouts, retries, and circuit breakers. Next week I’ll run a live demo where we generate services with AI and then break them by injecting latency. No slides. Just a terminal. maven.com/p/4b47ed/wat...

What happens if you let AI build a microservice? Next Thursday (12 Mar, 18:00 CET) I’ll show it live in a ⚡ lightning lesson. First: AI builds the service. Then: I try to break it in 60 seconds. A quick look at what AI coding tools can - and can’t - do yet. Details: maven.com/p/4b47ed/wat...

I’m running a live demo on March 12 (6 pm CET). I’ll have AI generate two services. We’ll look at the code. Then I’ll add latency and break it live. No slides. Just a terminal and real behavior. maven.com/p/4b47ed/wat... If you’re using #AI to build backend systems, this is worth your time.

Are you a fan of "plan mode" too? I wrote a blog post about why I think it's awesome toomuchcoding.com/post/2026-02... (of course LLM still ignores what we agreed upon there...) #YesYouAreRight #YouAreAbsolutelyRight

🎤 Agata Kabat is joining our speakers! In her talk “Before the To-Do List: The One Conversation Every Team Needs”, Agata will explore how intentional communication and a strong team contract build real collaboration, trust, and productivity. 2026.geecon.org/speakers/inf...

Is your production app behaving like a gremlin? Stop the chaos! Join Jonatan Ivanov at #Devnexus to learn how to make your #Java, #JVM, and #SpringBoot applications observable. Get the practical tools you need. https://brcm.tech/46CHHch

My new post about the new AI workshops! toomuchcoding.com/post/2026-02... #ai

I am proud of myself. I'm almost out of tokens but at least this time 1 HOUR HAS PASSED!!! #YouAreAbsolutelyRight

I've added links to the old issues of the TooMuchCoding newsletter. If you want to check them out just go here toomuchcoding.com/subscribe/ (but why click if you can subscribe and get the issues straight to your email?)

Issue #10 of the TooMuchCoding newsletter is out! 10 straight weeks of publishing info about what's going on in the IT world - so you don't have to! If you're interested in AI, JVM, Observability etc. go to toomuchcoding.com/subscribe/ and subscribe!

Hey 👋 I'm preparing a workshop about working with AI and distributed systems. If you're interested in the topic please help me out and fill out the survey! maven.com/toomuchcodin... #ai #microservices

If I got a dollar every time I read this... #YouAreAbsolutelyRight

Hey 👋 i need your help and your feedback about AI and distributed systems (for my workshop agenda). Please fill out the survey and repost 🙏 maven.com/forms/e8d298

If you're interested in using AI in such a way that your apps will not break in production due to obvious issues of distributed systems check out the workshop that I'm working on "Generate, Break, Fix: Distributed Systems in the AI Era" - maven.com/toomuchcodin... #ai #YouAreAbsolutelyRight

This is the feedback I got after doing the Java Microservices with Spring workshop. Now I'm upgrading that workshop into an AI native one where we will Generate, Break and Fix distributed systems using AI! Check it out here: maven.com/toomuchcodin...

Issue 9 of TooMuchCoding newsletter is out! Grab it while it's hot! We're getting close to 100 subscribers. If you want to help me reach that milestone go to toomuchcoding.com/contact and subscribe there! You don't have to believe me - look what ChatGpt said... #YouAreAbsolutelyRight

Today I finished the 2 week workshops with 9 students where we worked on how to do Java Microservices with Spring. 12 hours over 2 weeks. It was sheer pleasure and I hope that you enjoyed it! maven.com/toomuchcodin...

I don't know about you but every time I ask AI to do some complex task with technologies i don't have a lot of experience in I feel like Neo... #YesYouAreRight #YesYouAreAbsolutelyRight

Never trust anyone who says you shouldn't look at what an LLM does. I was seconds away from a catastrophe... #YesYouAreRight #YesYouAreAbsolutelyRight

Wow, I have 70 subscribers to my TooMuchCoding newsletter! If you want to subscribe too join at toomuchcoding.com/contact