Structured Concurrency: Managing the Hierarchical Cancelation and Error Handling

on YouTube ↗41m

" summary

Introduces Structured Concurrency with concrete code in Java Kotlin and Scala and a public repo that provides 11 obstacle courses and 20+ implementations; demonstrates Project Loom JDK25 scope API with virtual threads, Kotlin coroutines direct style, and effect libraries; shows explicit claims about cancellation semantics, resource cleanup, timeouts and error-join behaviors, assembles the expected "rig ght" from 10 concurrent requests with five failures, scales to 10,000 connections to validate cancellation, and documents Scoped Values and working examples in EasyRacer.

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" chapters (13)

1. 0:00Structured concurrency intro
2. 7:11EasyRacer project
3. 10:01Kotlin example scenario 9
4. 17:22Java Loom structured concurrency
5. 22:09Scala Kio effect approach
6. 25:03Understanding races in concurrency
7. 26:28Kotlin coroutines race scenario 1
8. 31:04Java Loom race impl
9. 33:12Scala Ox race
10. 34:16Error handling in races scenario 2
11. 37:48Resource management scenario 3
12. 39:13Timeouts and nested scopes scenario 4
13. 40:18Further reading

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