Simon Martinelli (@simas

Simon Martinelli

28K posts

Simon Martinelli

@simas_ch

Creator of the AI Unified Process. Java Champion, Vaadin Champion, Oracle ACE Pro, Speaker, Programming Architect, and Lecturer.

Erlach, Schweiz

Joined April 2009

Pinned
Simon Martinelli
@simas_ch
May 9
The recording of my Spring I/O 2026 talk is now online 🎥 Spec-driven Development: How AI Changed Everything (And Nothing) AI is changing how we build software. But one thing has not changed: unclear requirements still lead to unclear software. In this talk, I show why specs
Simon Martinelli
@simas_ch
May 13, 2022
"Our application has 20 microservices". "Wow, how many developers are you?" "2" 🤯
Simon Martinelli
@simas_ch
Nov 6, 2024
If your DTO is a copy of your Entity then you don't encapsulate anything and you can simply remove the DTO.
Simon Martinelli
@simas_ch
Apr 1, 2023
Most projects are not large enough for Microservices.
Simon Martinelli
@simas_ch
Nov 27, 2023
OMG 😱 I feel more than honored to be part of this group of amazing people. Thanks to everyone who made this happen. It motivates me even more to share my knowledge and help many developers to be successful with Java.
Java Champions
@Java_Champions
Nov 27, 2023
Congratulations to new #Java Champion @simas_ch
Simon Martinelli
@simas_ch
May 30, 2022
Just a reminder: Java enums are singletons
Simon Martinelli
@simas_ch
Dec 28, 2023
I like gRPC. We are using it in a new project where the size of the message and performance are essential. Now I start to question why we use REST and not an RPC-style protocol with JSON over HTTP. RPC adds semantics to the interface.
Simon Martinelli
@simas_ch
Aug 31, 2022
Just spotted it on SO: return questionsRepository .findAll() .stream() .filter(q->filter(q, embroyo)) .collect(Collectors.toList()); PLEASE learn what the where clause can do for you!
Simon Martinelli
@simas_ch
Jul 21, 2020
Use @vaadin to avoid this
Simon Martinelli
@simas_ch
Apr 21, 2023
One of the most important things as a software developer is to understand the business. If you don't understand what the users want to do with your software you shouldn't write a single line of code.
Simon Martinelli
@simas_ch
Nov 28, 2023
Unpopular opinion: Very often Kafka could be replaced by traditional messaging.
Simon Martinelli
@simas_ch
Nov 21, 2023
IntelliJ should display a warning when using Lombok Data on an Entity.
Simon Martinelli
@simas_ch
Jan 15, 2023
Finally I have a working example with Angular 15, Spring 3 and JWT. I will blog about my journey next week.
GitHub - simasch/angular-springboot-demo
From github.com
Simon Martinelli
@simas_ch
May 2, 2023
As a developer, going to the office is most often unnecessary. Usually, there is less communication/collaboration in the office than over Slack/Teams, but much more noise and distraction. Why do people still think that developers should work in the same room?