sunm2n commented on PR #23344:
URL: https://github.com/apache/kafka/pull/23344#issuecomment-5533903760

   Thanks for the review! I've pushed a second commit that cleans up the tools 
test module
   
   `ConnectInternalTopicsTest` and `DumpLogSegmentsTest` are updated — 
`Collections.singleton()`, `singletonList()` and `emptyMap()` are replaced with 
`Set.of()`, `List.of()` and `Map.of()`, and the now-unused 
`java.util.Collections` imports are removed
   
   I deliberately left a few call sites alone:
   - `ConfigCommandTest#511` and `ShareGroupCommandTest#265` use 
`Collections.singletonMap()` with a null value, and `Map.of()` rejects nulls
   - `Collections.nCopies()`, `disjoint()` and `emptyIterator()` have no 
`List.of()`-style equivalent
   
   Let me know if you'd prefer a different scope


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