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GH-3561 Harden variants against malformed metadata. - #3562

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steveloughran wants to merge 13 commits into

apache:masterfrom

steveloughran:pr/variant-hardening

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GH-3561 Harden variants against malformed metadata.#3562
steveloughran wants to merge 13 commits into
apache:masterfrom
steveloughran:pr/variant-hardening

Commits on Jul 21, 2026
- TestVariantScalar moves to junit5
  Steve Loughran
  committed
  d0c5feb
- Review feedback
  Steve Loughran
  committed
  195a698
- use Math.toIntExact when casting to int to guarantee overflows raise exceptions
  Steve Loughran
  committed
  e6f0b61
- Hardening ImmutableMetadata loading, with test
  Steve Loughran
  committed
  ff528f4
- Unknown versions are *not rejected*
  Steve Loughran
  committed
  4ac460c
- Unknown shredded type is rejected.
  Steve Loughran
  committed
  2efa3ee
- shredded types -read path.
  Steve Loughran
  committed
  d649934
- add a test for an empty data region, based on the iceberg pr
  Steve Loughran
  committed
  0359bea
Commits on Oct 24, 2026
- review feedback on comment text
  steveloughran
  committed
  01ad858
- Variant Hardening: relax checks on array ranges during construction
  steveloughran
  committed
  6632567
- Late checking requires late checks
  steveloughran
  committed
  66002fa
Commits on Oct 26, 2026
- Merge branch 'master' into pr/variant-hardening
  steveloughran
  committed
  05f601c
Commits on Oct 28, 2026
- Track down that junit4/5 issue.
  steveloughran
  committed
  ad6d599