Formal models and scripts: collation-pkginfo-danish-example-sort-setsort-after-16904

Tools: Python

These are the working models and scripts this part of the hunt used. Some encode the code as it is (a counterexample is the expected result), others a fixed or correct variant; read the header comment of each file. Paths inside them were replaced by placeholders such as $LUCENE (a Lucene checkout) and $WORK.

Findings

• The collation package overview's Danish Sorting example calls Sort.setSort, which was removed in 9.0.0, so the example does not compile; on main it is the one error left on the page after #16904 updated its examples (documentation defect) (finding LFV-1085; repro)

Files

• model/verbatim_check.py (used for LFV-1085)

How to run

• Python: python3 <file>.py; scripts that import z3 need the z3-solver package.

Snapshot of 2026-11-03. AI-assisted; not yet triaged by a human Lucene committer. Feedback: open an issue in lucene-ai-bug-hunt.