Add structured-concurrency-final module: StructuredTaskScope final in JDK 28 (JEP 543), run on 28-ea, 27, 26 and 25

Runnable demos for the ankurm.com structured-concurrency-java article: the ExecutorService thread leak and its fix, every built-in Joiner, structure violations, timeouts, a custom Joiner, JSON thread dumps (in-process and jcmd), scoped values, javap diffs of the API on 25, 26, 27 and 28-ea, compiler output for six pieces of 25/26-era code, and the preview class-file trap between 27 and 28. Transcripts in output/. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01CifR2BE7PBvRy5hT8TS9oz
2026-10-26 02:01:31 +00:00
parent 2e25042a68
commit c93a1fffbb
37 changed files with 1351 additions and 0 deletions
@@ -0,0 +1,12 @@
+$ javac src/ThreadDump.java && java ThreadDump     (28-beta+21-ea)
+"container": "orders\/jdk.internal.misc.ThreadFlock$ThreadContainerImpl@<hash>",
+"parent": "<root>",
+"owner": <n>,
+"tid": <n>,
+"virtual": true,
+"state": "TIMED_WAITING",
+"ThreadDump.lambda$main$6(ThreadDump.java:28)",
+"tid": <n>,
+"virtual": true,
+"state": "TIMED_WAITING",
+"ThreadDump.lambda$main$6(ThreadDump.java:28)",