Formal models and scripts: analysis-factory-javadoc-examples-and-resource-files-build-as-documented

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

• Eight analysis-factory class javadoc schema examples cannot be used as written: six are not well-formed XML (StopFilterFactory, JapaneseIterationMarkCharFilterFactory, BeiderMorseFilterFactory, OpenNLPTokenizerFactory, OpenNLPLemmatizerFilterFactory, DropIfFlaggedFilterFactory) and two name a class that is not a factory (LimitTokenOffsetFilterFactory's solr.LimitTokenOffsetFilter, PatternTypingFilterFactory's com.example.PatternTypingFilter) (documentation defect) (finding LFV-931; repro · finding page)

Files

• harness/extract_examples.py (used for LFV-931)

How to run

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

Snapshot of 2026-11-04. AI-assisted; not yet triaged by a human Lucene committer. Feedback: open an issue in lucene-ai-bug-hunt.