[LUCENE-5896] A few potential reproducibility issues

• Type: Test
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.9
• Fix Version/s: 4.10, 6.0
• Component/s: general/test
• Lucene Fields: New, Patch Available
• Assignee: Unassigned
• Reporter: Simon Willnauer
• Created: 20/Aug/14 15:30
• Updated: 28/Aug/22 14:14

Description

I realized that passing the same seeded random instance to LuceneTestCase# newIndewWriterConfig doesn't necessarily produce the same IWC and I found a bunch of issues in that class using global random rather than local random. Yet, I went over the file to spot others but we might need to think about a more automated way to spot those...