Java 27 and 26: runnable demos and captured output for every JEP, plus version lanes

Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
2026-09-21 15:08:50 +00:00
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+Find every usage of Executors.newFixedThreadPool and Executors.newCachedThreadPool in this project. Replace with Executors.newVirtualThreadPerTaskExecutor() where the tasks are I/O-bound. List any cases where platform threads should be kept (CPU-bound work, native frames on the stack, and on Java 21 to 23 also synchronized blocks that block, which pin the carrier thread until Java 24) and justify each decision.
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				`Find every usage of Executors.newFixedThreadPool and Executors.newCachedThreadPool in this project. Replace with Executors.newVirtualThreadPerTaskExecutor() where the tasks are I/O-bound. List any cases where platform threads should be kept (CPU-bound work, native frames on the stack, and on Java 21 to 23 also synchronized blocks that block, which pin the carrier thread until Java 24) and justify each decision.`