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Split into per-article modules and add the method-security module

Moves the existing virtual-thread/context-propagation project into
context-propagation/ and adds method-security/ for the Spring Security 7
method-security article: nine runnable demos, fourteen assertions, and every
transcript the article quotes, regenerated by scripts/run-all.sh.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RSrsDSRKVsY588yFiMJMo9
This commit is contained in:
2026-08-25 02:01:29 +00:00
parent 9f950bffa9
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65 changed files with 4088 additions and 119 deletions

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=== Demo 4: Executor/ExecutorService/AsyncTaskExecutor wrapping on a pooled platform thread ===
A) raw ThreadPoolExecutor, no wrapper: NO AUTHENTICATION (lost)
B) DelegatingSecurityContextExecutorService.execute(...): authenticated as bob
B2) DelegatingSecurityContextExecutorService.submit(Callable): authenticated as bob
EDGE) task 1 on possibly-reused worker: authenticated as carol-task1
EDGE) task 2, same pool, different caller context: authenticated as dave-task2 <-- correct, NOT stale, unlike plain InheritableThreadLocal on a reused worker
C) DelegatingSecurityContextExecutor + CompletableFuture.supplyAsync: authenticated as erin
C2) default CompletableFuture executor (common ForkJoinPool), no wrapper: NO AUTHENTICATION (lost)
D) DelegatingSecurityContextAsyncTaskExecutor wrapping ThreadPoolTaskExecutor: authenticated as grace