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
24 lines
818 B
Plaintext
24 lines
818 B
Plaintext
$ jcmd <pid> Thread.dump_to_file -format=json threads.json (28-beta+21-ea)
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<pid>:
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Created <tmp>/threads.json
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# the scope "orders" and its child scope in threads.json (stack frames, timestamps and ids trimmed or masked)
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"container": "orders\/jdk.internal.misc.ThreadFlock$ThreadContainerImpl@<hash>",
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"parent": "<root>",
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"owner": <n>,
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"tid": <n>,
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"virtual": true,
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"state": "TIMED_WAITING",
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"ThreadDump.lambda$main$1(ThreadDump.java:12)",
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"tid": <n>,
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"virtual": true,
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"state": "WAITING",
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"ThreadDump.lambda$main$2(ThreadDump.java:16)",
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"container": "inventory\/jdk.internal.misc.ThreadFlock$ThreadContainerImpl@<hash>",
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"parent": "orders\/jdk.internal.misc.ThreadFlock$ThreadContainerImpl@<hash>",
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"owner": <n>,
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"tid": <n>,
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"virtual": true,
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"state": "TIMED_WAITING",
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"ThreadDump.lambda$main$4(ThreadDump.java:15)",
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