Claude
c93a1fffbb
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
22 lines
950 B
Plaintext
22 lines
950 B
Plaintext
$ javac src/Joiners.java && java Joiners (28-beta+21-ea)
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-- allSuccessfulOrThrow(): List in FORK order, not completion order
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[slow, fast, medium]
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-- allSuccessfulOrThrow(): one failure cancels the others, join() throws ExecutionException
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ExecutionException, cause = java.lang.IllegalStateException: broken failed
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interrupted: [slow]
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-- anySuccessfulOrThrow(): the race; losers are interrupted
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winner: B-50ms
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interrupted: [A-300ms, C-300ms]
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-- anySuccessfulOrThrow(): when every subtask fails
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ExecutionException, cause = java.lang.IllegalStateException: one failed
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-- awaitAllSuccessfulOrThrow(): returns null (Void), like the zero-argument open()
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join() = null, a=a, b=b
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-- allUntil(predicate): stop when two subtasks have completed
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SUCCESS t1
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SUCCESS t2
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UNAVAILABLE
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UNAVAILABLE
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interrupted: [t3, t4]
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-- the Function overload: join() throws OUR exception type
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caught ServiceException: service call failed: orders failed
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