[CELEBORN-1796] Using java StringBuilder instead of scala wrapped#3021
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turboFei wants to merge 1 commit intoapache:mainfrom
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[CELEBORN-1796] Using java StringBuilder instead of scala wrapped#3021turboFei wants to merge 1 commit intoapache:mainfrom
turboFei wants to merge 1 commit intoapache:mainfrom
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What changes were proposed in this pull request?
As title.
Why are the changes needed?
The Scala
StringBuilderis a very thin API that wraps Java's. Using java StringBuilder directly for better performance for below cases:Refer: https://issues.apache.org/jira/browse/SPARK-48568
Does this PR introduce any user-facing change?
No.
How was this patch tested?
GA.