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Stefan Johansson

Oracle

Stefan is a software engineer working in the HotSpot GC-team at Oracle. He joined the GC-team in 2013 and has been active in OpenJDK since then with a focus on the G1 and ZGC garbage collectors. Prior to working with GC in the JVM he was working on other JVM related projects at Oracle.

Badges 4

Talks 3

  1. Devoxx Belgium 2025

    Garbage Collection in Java: Choosing the Correct Collector

    October 2025Java

  2. Devoxx Belgium 2024

    Garbage Collection in Java: The progress since JDK 8

    October 2024java▶ Watch

  3. Devoxx UK 2024

    Garbage Collection in Java: The progress since JDK 8

    May 2024Java▶ Watch