Roberto Cortez
where else to find them
what they talk about
all 7 in the filters
where they keep going back
- Voxxed Days Zurich3 editions2019–2026
- JNation2 editions2022–2024
- Devnexus2 editions2020–2022
all 10 in the filters
on a stage with
- Antonio Goncalvesonce
- Justin Leeonce
who talks about the same things
- Emmanuel Bernard30 talks
- Sebastian Daschner33 talks
- Francesco Nigro8 talks
- Dimitris Andreadis11 talks
- Adam Bien53 talks
- Ionut Balosin13 talks
| title | conference | date |
|---|---|---|
| How difficult can it be to write efficient code? | Voxxed Days Bucharest 2026 | 2026-04-28 |
Uses AsyncProfiler, JMH and JFR to measure a string-prefix example: streams show ~9,900 allocation samples and a throughput score ~6k, a loop and… | ||
| Quarkus Unleashed | Voxxed Days Zurich 2026 | 2026-03-24 |
Quarkus shifts expensive runtime work into compilation so apps start fast and use less memory, achieved by build steps and build items in extension deployment… | ||
| How difficult can it be to write efficient code? | Voxxed Days Zürich 2025 | 2025-03-25 |
Shows how to find and fix real Java hotspots using AsyncProfiler and flame graphs to locate cost, then JMH microbenchmarks to measure fixes. Demonstrates a… | ||
| How difficult can it be to write efficient code? | Voxxed Days Ticino 2025 | 2025-01-16 |
Shows concrete techniques: use AsyncProfiler flame graphs to find hot allocation sites, then isolate code with JMH microbenchmarks to compare variants. Live… | ||
| Welcome to JNation 2024 | JNation 2024 | 2024-06-04 |
Conference sells out for the seventh edition and uses every room of the venue, reports a large increase in speakers, sponsors and attendees, and presents a… | ||
| Quarkus Unleashed | JCON Europe 2023 | 2023-06-20 |
Quarkus moves expensive startup work into build-time processing, analyzing the closed world (gendex classpath index, build steps and build items) and using… | ||
| Welcome to ! | JNation 2022 | 2022-06-07 |
Welcome note sets logistics and surprises: venue theme is steampunk and the event records 800 attendees, 38 international speakers, 40 volunteers, five tracks… | ||
| I'm Tracing you! | JNation 2022 | 2022-06-07 |
Shows OpenTelemetry tracing end-to-end: a Java agent instrumentation captures requests without code changes, traces propagate across Quarkus services, Postgres… | ||
| I'm Tracing You! | Devnexus 2022 | 2022-04-12 |
OpenTelemetry instruments applications end to end using a Java agent or library hooks, exports via OTLP to a collector and was shown pushing traces into Jaeger… | ||
| Do you know these Libraries? | JCON 2020 | 2020-10-27 |
Shows concrete libraries, how they’re wired and what they actually produce: Lombok annotation processor removes getters/setters/builders at compile time (IDE… | ||
| Quarkus Supersonic Subatomic Java | Devnexus 2020 | 2020-02-19 |
Quarkus claims sub-second startup and dramatic memory reductions by shifting annotation scanning and wiring to build time and generating a runner JAR; a simple… | ||
| Lightweight Enterprise Java with MicroProfile | Devoxx Belgium 2019 | 2019-11-04 |
Live coding builds a Book REST service plus a separate ISBN generator service, using MicroProfile specs (Config, Fault Tolerance, Health, Metrics, OpenAPI, JWT… | ||
| GraalVM and MicroProfile: A Polyglot Microservices Solution | Voxxed Days Microservices 2019 | 2019-10-21 |
GraalVM runs Java, JavaScript, Python, Ruby and R in one VM and demos show a Java Spark number API and a calculator backed by R that all run and interoperate… | ||
| Lightweight Enterprise Java with MicroProfile | Voxxed Days Zurich 2019 | 2019-03-19 |
Claims that Enterprise Java is lightweight and portable, then shows it: a small MicroProfile app (JAX-RS, CDI, JSON-P) and a bookstore plus a separate number… | ||
| Baking a Microservice PI(e) | Devoxx Belgium 2017 | 2017-11-06 |
Hands-on build of a microservice stack on a 12-node Raspberry Pi cluster: a Number API (math.random) and a Book API that calls it, an Angular UI, and three… | ||
| Maven - Taming the Beast | Jfokus 2016 | 2016-02-08 |
Covers concrete fixes for Maven pain: identify unused and transitive jars with mvn dependency:analyze, inspect the full dependency graph with mvn… | ||
| nothing matches | ||