Johan Janssen
where else to find them
linkedin:johanjanssen2001
what they talk about
all 10 in the filters
where they keep going back
- J2 editions2015–2023
all 16 in the filters
on a stage with
- Mark van Cuijkonce
- Martin Kantersonce
who talks about the same things
- Simon Ritter72 talks
- Piotr Przybył41 talks
- Gerrit Grunwald38 talks
- Mohammed Aboullaite32 talks
- Trisha Gee41 talks
- Andrzej Grzesik24 talks
| title | conference | date |
|---|---|---|
| Java's Hidden Gems: Tools and Libraries | Voxxed Days Thessaloniki 2024 | 2024-10-18 |
Rapid tour of concrete Java tools with demos and surprising results: asynchronous tests drop from ~2s sleeps to near-instant with Awaitility, runtime coverage… | ||
| Java's Hidden Gems: Tools and Libraries | JNation 2024 | 2024-06-04 |
Quick catalog of concrete tools, what they do and whether they worked: unit-testable architecture rules with ArchUnit (catching misnamed controllers and… | ||
| How sand and Java are used to create the world’s most powerful chips | GeeCON 2024 | 2024-05-15 |
Machines use a 40 kW laser amplifier to hit tin droplets at 70 m/s 50,000 times a second to produce EUV light; a single lithography system has ~450,000 parts… | ||
| How sand and Java are used to create the world’s most powerful chips | Voxxed Days Bucharest 2024 | 2024-03-27 |
ASML’s chip fabrication uses EUV lasers with ~450,000 components and a 40 kW beam hitting 70 m/s tin droplets ~100,000 times per second to print up to 200… | ||
| Java's Hidden Gems: Tools and Libraries | DevWorld 2024 | 2024-02-29 |
A GitHub repo of about 70 tools and examples anchors concrete demos: ArchUnit architecture rules that run as unit tests, JaCoCo runtime coverage that finds… | ||
| How sand and Java are used to create the world’s most powerful chips | J-Fall 2023 | 2023-11-09 |
ASML’s EUV workflow prints features at about 2–3 nm accuracy by blasting tin droplets with a ~40 kW laser (50,000 shots) to make plasma, steering EUV with… | ||
| Java's Hidden Gems: Tools and Libraries | Voxxed Days Luxembourg 2023 | 2023-06-21 |
A rapid catalogue of concrete Java tools with real outcomes: 70 examples on GitHub shows lightweight demos; ArcUnit rules enforce package/annotation boundaries… | ||
| Java's Hidden Gems: Tools and Libraries | JCON Europe 2023 | 2023-06-20 |
70 sample projects live on GitHub and the session shows concrete wins: ArchUnit architecture tests prevent accidental layer coupling, Awaitility replaces… | ||
| Java's Hidden Gems | Devnexus 2023 | 2023-04-04 |
Examples include ArchUnit enforcing package and naming rules, Awaitility reducing async test waits (roughly awaitility halves wait versus thread sleep), JaCoCo… | ||
| How and Why to Upgrade to Java 17 | JCON-ONLINE 2021 | 2021-10-05 |
Explains upgrading from Java 8 (or 11) to 17 with concrete recipes: use multi-release jar to ship a Java 17 record while falling back to an older class on Java… | ||
| Build your own voice recognition solution with Alexa | Voxxed Days Ticino 2019 | 2019-10-09 |
Shows how to turn Alexa into a local home‑automation front end using openHAB, with concrete demos: a TP‑Link smart plug toggled via Alexa → IFTTT → openHAB… | ||
| Processing IoT sensor data with InfluxDB | Riga Dev Days 2019 | 2019-05-29 |
Spring Boot collects readings from a BME280 on GPIO and Xiaomi Mijia over Bluetooth, writes points to InfluxDB via the InfluxDB Java client or REST (also… | ||
| REST no more - Using Actors for the Internet of LEGO... | Codemotion Amsterdam 2018 | 2018-05-08 |
A Scala + Akka system runs on Raspberry Pis to control LEGO trains, switches and a ferris wheel using Scala + Akka remote actors over TCP, infrared… | ||
| Using Actors for the Internet of (Lego) Trains | Scala Days Berlin 2016 | 2016-06-15 |
Raspberry Pi–powered Lego trains use camera, RFID, infrared transmitter, speaker and Particle Photon LEDs tied into a Scala/Java backend with AngularJS front… | ||
| Using Actors for the Internet of (Lego) Trains | Scala Days Berlin 2016 | 2016-06-15 |
Built a remote actor control system for Lego trains running on Raspberry Pi A+ with Wi‑Fi and IR transmitter, camera, RFID, speaker, automated switches… | ||
| Advanced Akka features | Voxxed Days Vienna 2016 | 2016-03-16 |
Live demo of Akka features shows a seven-node Raspberry Pi cluster and a JVM setup with two seed nodes (ports 2551/2552), sending about 10,000 messages through… | ||
| Beyond the basics of SonarQube: improve your Java(Script) code even further | Jfokus 2016 | 2016-02-08 |
Most teams treat SonarQube as a Checkstyle/PMD stand-in, but SonarQube reimplements rules and adds advanced features: JaCoCo agent attached to Tomcat measures… | ||
| REST No More, Use an Actor | J-Fall 2015 | 2015-11-05 |
A project compared using REST (Java/Jersey/Tomcat) versus Akka-based remote actors for inter-service communication on a Raspberry Pi cluster. The team replaced… | ||
| nothing matches | ||