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Erik Österlund

Consulting Member of Technical Staff

Erik is a member of the HotSpot Garbage Collection team at Oracles. He is an OpenJDK Reviewer, and a contributor to the ZGC project.

Posts

JEP targeted to JDK 26: 516: Ahead-of-Time Object Caching with Any GC on November 13, 2025JDK 26 GC Leyden
Mark–Scavenge: Waiting for Trash to Take Itself Out on November 22, 2024GC
ZGC Automatic Heap Sizing #JVMLS on November 9, 2024GC
JEP targeted to JDK 24: 475: Late Barrier Expansion for G1 on October 18, 2024JDK 24 GC
Generational ZGC Early-Access builds on October 18, 2022GC

Videos

Evolving ZGC's Pointer Color Palette #JVMLS on October 6, 2025GC HotSpot
ZGC - Paving the GC On-Ramp on July 10, 2025GC Performance
JVMLS - Generational ZGC and Beyond on August 31, 2023GC
ZGC - The Future of Low-Latency Garbage Collection Is Here on January 25, 2023GC
Concurrent Thread-stack Processing in the Z Garbage Collector on May 31, 2022GC
ZGC Concurrent Class Unloading on February 4, 2019GC
The Z Garbage Collector on November 17, 2018GC

Podcast

Episode 24 “Towards Generational ZGC!” on June 29, 2022GC