Simon Martinelli
@martinelli.ch
Java Champion, Vaadin Champion, Oracle ACE Pro, International Speaker, Programming Architect, and Lecturer for Software Architecture, Java, Persistence, and DevOps.
https://martinelli.ch
https://martinelli.ch
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Simon Martinelli
@martinelli.ch
· Nov 18
Spec-driven Development with the AI Unified Process
YouTube video by Simon Martinelli
www.youtube.com
The first live stream on spec-driven development is already over.
Thank you all so much for participating. For those who couldn't be there, you can find the recording here:
www.youtube.com/watch?v=jwPB...
Thank you all so much for participating. For those who couldn't be there, you can find the recording here:
www.youtube.com/watch?v=jwPB...
Reposted by Simon Martinelli
February 6, 2026 at 9:14 PM
Reposted by Simon Martinelli
In der Schweiz formiert sich ein hochkarätiges Netzwerk für die digitale Unabhängigkeit. Das ist den USA-Vertretern ein Dorn im Auge. Behörden haben jetzt die Chance, mit gutem Beispiel voranzugehen.
gnulinux.ch/digitale-sou...
#Medienecho
gnulinux.ch/digitale-sou...
#Medienecho
Digitale Souveränität wird zum Kampfbegriff
In der Schweiz formiert sich ein hochkarätiges Netzwerk für die digitale Unabhängigkeit. Das ist den USA-Vertretern ein Dorn im Auge. Behörden haben jetzt die Chance, mit gutem Beispiel voranzugehen.
gnulinux.ch
February 7, 2026 at 11:21 AM
In der Schweiz formiert sich ein hochkarätiges Netzwerk für die digitale Unabhängigkeit. Das ist den USA-Vertretern ein Dorn im Auge. Behörden haben jetzt die Chance, mit gutem Beispiel voranzugehen.
gnulinux.ch/digitale-sou...
#Medienecho
gnulinux.ch/digitale-sou...
#Medienecho
GreenMail is great alternative as well. But I also run my app with Testcontainers during development and Mailpit has a UI where I can see all sent mails
February 4, 2026 at 12:02 PM
GreenMail is great alternative as well. But I also run my app with Testcontainers during development and Mailpit has a UI where I can see all sent mails
If you also need to test email sending I got you covered 😎
martinelli.ch/testing-emai...
martinelli.ch/testing-emai...
Testing Emails in Spring Boot with Testcontainers and Mailpit - Martinelli
Testing email functionality is often painful. SMTP servers are external, tests become slow or flaky, and local setups differ from CI environments. As a result, many teams either mock the mail sender o...
martinelli.ch
February 4, 2026 at 6:39 AM
If you also need to test email sending I got you covered 😎
martinelli.ch/testing-emai...
martinelli.ch/testing-emai...
Specs in my process are use cases that describe the flow martinelli.ch/why-system-u...
Why System Use Cases Are Perfect in the Age of AI - Martinelli
AI is changing how we build software. Code, tests, and even UI can be generated very fast. This is powerful, but it also exposes a big weakness in many projects. AI does not understand intent by itsel...
martinelli.ch
February 3, 2026 at 11:21 AM
Specs in my process are use cases that describe the flow martinelli.ch/why-system-u...
Reposted by Simon Martinelli
Proud to introduce the first Foojay book! 'Sustainability for Java Developers' is a collaborative effort from our amazing community. The first edition is now available on @leanpub.bsky.social for FREE with more updates coming soon... foojay.io/today/announ... #Java #Sustainability #FoojayCommunity
Announcing: Sustainability for Java Developers
Java developers from around the world are writung a book about a question that's becoming impossible to ignore: how do we write software that's good for both our projects and the planet?
foojay.io
February 3, 2026 at 8:40 AM
Proud to introduce the first Foojay book! 'Sustainability for Java Developers' is a collaborative effort from our amazing community. The first edition is now available on @leanpub.bsky.social for FREE with more updates coming soon... foojay.io/today/announ... #Java #Sustainability #FoojayCommunity
New blog post ✍️
Spec-driven development is not a return to waterfall.
AI makes coding faster, but speed was never the real problem. The real bottleneck is still requirements and specifications.
👉 Read the post: martinelli.ch/why-spec-dri...
Spec-driven development is not a return to waterfall.
AI makes coding faster, but speed was never the real problem. The real bottleneck is still requirements and specifications.
👉 Read the post: martinelli.ch/why-spec-dri...
Why Spec-Driven Development Can Be Iterative, Incremental, and Agile - Martinelli
Whenever I talk about AIUP and Spec-driven Development, I often hear the same concern: “This sounds like Waterfall.” That reaction is understandable. For many developers, words like requirements, spec...
martinelli.ch
February 3, 2026 at 9:10 AM
New blog post ✍️
Spec-driven development is not a return to waterfall.
AI makes coding faster, but speed was never the real problem. The real bottleneck is still requirements and specifications.
👉 Read the post: martinelli.ch/why-spec-dri...
Spec-driven development is not a return to waterfall.
AI makes coding faster, but speed was never the real problem. The real bottleneck is still requirements and specifications.
👉 Read the post: martinelli.ch/why-spec-dri...
Just a hint for the fetch. Check out Records.mapping www.jooq.org/doc/latest/m...
RecordMapper
RecordMapper
www.jooq.org
January 31, 2026 at 11:54 AM
Just a hint for the fetch. Check out Records.mapping www.jooq.org/doc/latest/m...
Reposted by Simon Martinelli
A very nice feature of @jooq.org - implicit joins!
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
January 30, 2026 at 7:17 PM
A very nice feature of @jooq.org - implicit joins!
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
Reposted by Simon Martinelli
Want to learn about testing emails with #Testcontainers and #Mailpit? Check out this great piece by @martinelli.ch on Foojay. foojay.io/today/testin... #EmailTesting #Foojay #Java
foojay – a place for friends of OpenJDK
foojay is the place for all OpenJDK Update Release Information. Learn More.
foojay.io
January 30, 2026 at 12:52 PM
Want to learn about testing emails with #Testcontainers and #Mailpit? Check out this great piece by @martinelli.ch on Foojay. foojay.io/today/testin... #EmailTesting #Foojay #Java
Reposted by Simon Martinelli
🎉 #Oracle #AI #Database 26ai Enterprise Edition is now generally available for Linux x86-64 on-prem!
Oracle AI Database 26ai Enterprise Edition now GA for on-premises Linux x86-64
Oracle AI Database 26ai Enterprise Edition is now generally available for Linux x86-64. You can download it from the usual places, such as the Oracle Database download page, Software Delivery Cloud (eDelivery), and My Oracle Support (the RU). Check out the Oracle AI Database New Features Guide to see all the new features that came in this release. …
www.geraldonit.com
January 27, 2026 at 5:56 PM
It’s a pity. I never made it to Devoxx UK 🙁
January 26, 2026 at 2:34 PM
It’s a pity. I never made it to Devoxx UK 🙁
Unfortunately, no, I'll be at JAX Mainz that week.
January 26, 2026 at 12:36 PM
Unfortunately, no, I'll be at JAX Mainz that week.
Reposted by Simon Martinelli
"Spec-driven Development: How AI Changed Everything (And Nothing)" - @martinelli.ch
No description on the schedule… which makes me even more curious 😅
AI + specs + reality check? Sounds like a fun combo.
📽️ www.youtube.com/watch?v=yBQI...
No description on the schedule… which makes me even more curious 😅
AI + specs + reality check? Sounds like a fun combo.
📽️ www.youtube.com/watch?v=yBQI...
Spec-driven Development: How AI Changed Everything (And Nothing)
AI makes coding faster, but we're still stuck with the same old problem: code becomes the source of truth. What if we flipped this around? This talk shows a new way to build software. Write your…
www.youtube.com
January 26, 2026 at 10:45 AM
"Spec-driven Development: How AI Changed Everything (And Nothing)" - @martinelli.ch
No description on the schedule… which makes me even more curious 😅
AI + specs + reality check? Sounds like a fun combo.
📽️ www.youtube.com/watch?v=yBQI...
No description on the schedule… which makes me even more curious 😅
AI + specs + reality check? Sounds like a fun combo.
📽️ www.youtube.com/watch?v=yBQI...
The jChampions conference is a free online conference and I'm very excited to talk about Spec-driven Development at this event!
jchampionsconf.com
jchampionsconf.com
January 26, 2026 at 8:14 AM
The jChampions conference is a free online conference and I'm very excited to talk about Spec-driven Development at this event!
jchampionsconf.com
jchampionsconf.com
Reposted by Simon Martinelli
A coworker took this from her apartment. I haven't seen a crowd this size before. Maybe the first Women's March? But it was much much warmer that day. ICE OUT OF MINNESOTA!
January 23, 2026 at 11:19 PM
A coworker took this from her apartment. I haven't seen a crowd this size before. Maybe the first Women's March? But it was much much warmer that day. ICE OUT OF MINNESOTA!
📣 New on the blog: The Age of ReDevTest — Why Requirements Matter More Than Code 🧠
AI is reshaping how we build software.
👉 Read the full piece and rethink your workflow: martinelli.ch/the-age-of-r...
#ReDevTest #SoftwareDevelopment #AI #RequirementsEngineering #Productivity
AI is reshaping how we build software.
👉 Read the full piece and rethink your workflow: martinelli.ch/the-age-of-r...
#ReDevTest #SoftwareDevelopment #AI #RequirementsEngineering #Productivity
The Age of ReDevTest: Why Requirements Matter More Than Code - Martinelli
For many years, software development was code-centric.We wrote requirements, then quickly moved to implementation. Tests helped, but code was the real source of truth. AI changes this completely.…
martinelli.ch
January 22, 2026 at 4:59 PM
📣 New on the blog: The Age of ReDevTest — Why Requirements Matter More Than Code 🧠
AI is reshaping how we build software.
👉 Read the full piece and rethink your workflow: martinelli.ch/the-age-of-r...
#ReDevTest #SoftwareDevelopment #AI #RequirementsEngineering #Productivity
AI is reshaping how we build software.
👉 Read the full piece and rethink your workflow: martinelli.ch/the-age-of-r...
#ReDevTest #SoftwareDevelopment #AI #RequirementsEngineering #Productivity
Reposted by Simon Martinelli
JavaOne Speaker Preview with Jeanne Boyarsky @jeanneboyarsky.bsky.social dukescorner.libsyn.com/site/jeanne-...
Duke's Corner: Jeanne Boyarsky: Get Ready for Java 25 Certification
This is the first in a short series of speaker profiles for JavaOne 2026 in Redwood Shores, California, March 17-19. Get early bird pricing until February 9, and for a limited time, take advantage of ...
dukescorner.libsyn.com
January 21, 2026 at 12:43 PM
JavaOne Speaker Preview with Jeanne Boyarsky @jeanneboyarsky.bsky.social dukescorner.libsyn.com/site/jeanne-...
You can do the same apps with the same look and feel in both stacks. But there are only a few people master both. Plus with only one stack the integration is much simpler
January 20, 2026 at 7:49 PM
You can do the same apps with the same look and feel in both stacks. But there are only a few people master both. Plus with only one stack the integration is much simpler
The question is: Do you want to work in two ecosystems that you’ll have to master or choose one. For example Vaadin and Spring Boot or React and Next.js
January 20, 2026 at 7:42 PM
The question is: Do you want to work in two ecosystems that you’ll have to master or choose one. For example Vaadin and Spring Boot or React and Next.js
What ever ecosystem you choose to do full-stack you will have SQL and HTML. So I only counted the “programming” languages
January 20, 2026 at 7:34 PM
What ever ecosystem you choose to do full-stack you will have SQL and HTML. So I only counted the “programming” languages
😀 I include the DB in the backend
January 20, 2026 at 7:32 PM
😀 I include the DB in the backend
I just counted the languages that are not common.
January 20, 2026 at 7:31 PM
I just counted the languages that are not common.
I wouldn’t call Angular or React and Spring Boot or Quarkus “full-stack”.
This is “dual-stack” because you have to learn two languages and two ecosystems.
This is “dual-stack” because you have to learn two languages and two ecosystems.
January 20, 2026 at 7:12 PM
I wouldn’t call Angular or React and Spring Boot or Quarkus “full-stack”.
This is “dual-stack” because you have to learn two languages and two ecosystems.
This is “dual-stack” because you have to learn two languages and two ecosystems.