[SPARK-46957][CORE][FOLLOW-UP] Use Collections.emptyMap for Java compatibility #47121
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What changes were proposed in this pull request?
This PR replaces
Map.of()
withCollections.emptyMap()
.Why are the changes needed?
To fix the Java compilation error for branch-3.5/3.4.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Covered by existing tests.
Was this patch authored or co-authored using generative AI tooling?
No.