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Jackson 3 series companion code

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37 runnable examples covering the eight feature posts on ankurm.com, verified
against Jackson 3.2.1 on Temurin 21.0.5. Every output committed under docs/ was
produced by run-all.sh.

Also documents 11 places where the published snippets do not compile or do not
behave as printed against a real Jackson 3 build - most notably that
writeValueAsString(List<Base>) silently drops the polymorphic type discriminator,
so the post's serialised output cannot be read back.
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Ankur
2026-08-04 23:12:11 +05:30
commit c438afc33b
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8
docs/output/Y03DateTimeDefaults.txt Normal file
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SerializationFeature has WRITE_DATES_AS_TIMESTAMPS : false
DateTimeFeature.WRITE_DATES_AS_TIMESTAMPS default : false
defaults (ISO-8601):
{"day":"2026-09-15","startsAt":"2026-09-15T10:30:00","recordedAt":"2026-09-15T10:30:00Z","zoned":"2026-09-15T10:30:00Z","length":"PT45M"}
with WRITE_DATES_AS_TIMESTAMPS enabled:
{"day":[2026,9,15],"startsAt":[2026,9,15,10,30],"recordedAt":1789468200.000000000,"zoned":1789468200.000000000,"length":"PT45M"}
numeric form reads back: 2026-09-15