cloud-fan opened a new pull request, #55873:
URL: https://github.com/apache/spark/pull/55873
### What changes were proposed in this pull request?
Add a missing trailing comma to the `DataStreamReader.name` MiMa exclude
entry in `project/MimaExcludes.scala` on branch-4.2. The cherry-pick of
SPARK-56395 (commit 2c356ac6c2d) added a new `Dataset.nearestByJoin` exclude
entry to `v42excludes` but did not append the required comma to the preceding
`DataStreamReader.name` entry.
### Why are the changes needed?
Without the comma, SBT project loading fails on branch-4.2:
```
[error] /home/runner/work/spark/spark/project/MimaExcludes.scala:62:19: ')'
expected but '.' found.
[error]
ProblemFilters.exclude[ReversedMissingMethodProblem]("org.apache.spark.sql.Dataset.nearestByJoin")
[error] ^
[error] /home/runner/work/spark/spark/project/MimaExcludes.scala:63:3: ';'
expected but ')' found.
[error] )
[error] ^
[error] two errors found
[error] (Compile / compileIncremental) Compilation failed
```
This breaks all CI builds on branch-4.2. Reported by @LuciferYang in
https://github.com/apache/spark/pull/55682#discussion_r3239241097. This change
is branch-4.2 only; master is unaffected because the `nearestByJoin` entry has
not been merged to master yet.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Existing CI. The fix restores compilability of the SBT project definition.
### Was this patch authored or co-authored using generative AI tooling?
Generated-by: Claude Code (Opus 4.7)
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