Should I Upgrade to Java 17?

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" summary

Benchmarks use JMH on a 4‑core i5 laptop and report throughput in ops/sec, claiming JDK 17 consistently beats 8 and 11 for map.put/get (integers) and at large sizes for strings; measurement setup is JMH: 3 forks, 5 warmups, 5 iterations. Memory tests use Runtime (memory = total - free) and show smaller heap use on 17. Feature changes: var, switch expressions, text blocks, helpful NPEs, pattern matching, records, sealed classes. Note removed: Nashorn, CMS; strong encapsulation can break older libraries.

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" chapters (3)

1. 0:00Introduction
2. 3:25Presentation
3. 53:05Q&A

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