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More Action, More Overview – From 4k to 1M Threads
Java 21+ Virtual Threads replace heavyweight platform threads (1MB each, max ~10K) with lightweight alternatives (1KB each, millions possible). But the real challenge isn't the API — it's the migration path. In this talk, I live-code a rule engine executing 100,000 business rules in parallel, demonstrating the three pillars of modern Java concurrency.
Presentations
4 appearances Entwickler.de: Java 25 Unboxed Online
2025-09 Java 25 edition with Scoped Values focus
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