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Posted to issues@spark.apache.org by "Yang Jie (Jira)" <ji...@apache.org> on 2020/10/29 09:35:00 UTC

[jira] [Created] (SPARK-33285) Too many "Auto-application to `()` is deprecated." related compilation warnings

Yang Jie created SPARK-33285:
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             Summary: Too many "Auto-application to `()` is deprecated."  related compilation warnings
                 Key: SPARK-33285
                 URL: https://issues.apache.org/jira/browse/SPARK-33285
             Project: Spark
          Issue Type: Sub-task
          Components: Build
    Affects Versions: 3.1.0
            Reporter: Yang Jie


There are too many  "Auto-application to `()` is deprecated." related compilation warnings when compile with Scala 2.13 like
{code:java}
[WARNING] [Warn] /Users/yangjie01/SourceCode/git/spark-mine/core/src/test/scala/org/apache/spark/PartitioningSuite.scala:246: Auto-application to `()` is deprecated. Supply the empty argument list `()` explicitly to invoke method stdev,
or remove the empty argument list from its definition (Java-defined methods are exempt).
In Scala 3, an unapplied method like this will be eta-expanded into a function.
[WARNING] [Warn] /Users/yangjie01/SourceCode/git/spark-mine/core/src/test/scala/org/apache/spark/PartitioningSuite.scala:247: Auto-application to `()` is deprecated. Supply the empty argument list `()` explicitly to invoke method variance,
or remove the empty argument list from its definition (Java-defined methods are exempt).
In Scala 3, an unapplied method like this will be eta-expanded into a function.
[WARNING] [Warn] /Users/yangjie01/SourceCode/git/spark-mine/core/src/test/scala/org/apache/spark/PartitioningSuite.scala:247: Auto-application to `()` is deprecated. Supply the empty argument list `()` explicitly to invoke method popVariance,
or remove the empty argument list from its definition (Java-defined methods are exempt).
In Scala 3, an unapplied method like this will be eta-expanded into a function.
[WARNING] [Warn] /Users/yangjie01/SourceCode/git/spark-mine/core/src/test/scala/org/apache/spark/PartitioningSuite.scala:248: Auto-application to `()` is deprecated. Supply the empty argument list `()` explicitly to invoke method stdev,
or remove the empty argument list from its definition (Java-defined methods are exempt).
In Scala 3, an unapplied method like this will be eta-expanded into a function.
[WARNING] [Warn] /Users/yangjie01/SourceCode/git/spark-mine/core/src/test/scala/org/apache/spark/PartitioningSuite.scala:248: Auto-application to `()` is deprecated. Supply the empty argument list `()` explicitly to invoke method popStdev,
or remove the empty argument list from its definition (Java-defined methods are exempt).
In Scala 3, an unapplied method like this will be eta-expanded into a function.
{code}
Maybe these will mask some of the more important compilation warnings

 



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