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### What changes were proposed in this pull request? There are two similar compilation warnings about procedure-like declaration in Scala 2.13: ``` [WARNING] [Warn] /spark/core/src/main/scala/org/apache/spark/HeartbeatReceiver.scala:70: procedure syntax is deprecated for constructors: add `=`, as in method definition ``` and ``` [WARNING] [Warn] /spark/core/src/main/scala/org/apache/spark/storage/BlockManagerDecommissioner.scala:211: procedure syntax is deprecated: instead, add `: Unit =` to explicitly declare `run`'s return type ``` this pr is the first part to resolve SPARK-33352： - For constructors method definition add `=` to convert to function syntax - For without `return type` methods definition add `: Unit =` to convert to function syntax ### Why are the changes needed? Eliminate compilation warnings in Scala 2.13 and this change should be compatible with Scala 2.12 ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Pass the Jenkins or GitHub Action Closes #30255 from LuciferYang/SPARK-29392-FOLLOWUP.1. Authored-by: yangjie01 <yangjie01@baidu.com> Signed-off-by: Sean Owen <srowen@gmail.com> |
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