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https://issues.apache.org/jira/browse/SPARK-39703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17563525#comment-17563525
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Apache Spark commented on SPARK-39703:
--------------------------------------

User 'HyukjinKwon' has created a pull request for this issue:
https://github.com/apache/spark/pull/37109

> Mima complains with Scala 2.13 in the master branch
> ---------------------------------------------------
>
>                 Key: SPARK-39703
>                 URL: https://issues.apache.org/jira/browse/SPARK-39703
>             Project: Spark
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 3.4.0
>            Reporter: Hyukjin Kwon
>            Priority: Minor
>
> {code}
> [error] spark-core: Failed binary compatibility check against 
> org.apache.spark:spark-core_2.13:3.2.0! Found 6 potential problems (filtered 
> 933)
> [error]  * the type hierarchy of object 
> org.apache.spark.deploy.DeployMessages#LaunchExecutor is different in current 
> version. Missing types {scala.runtime.AbstractFunction7}
> [error]    filter with: 
> ProblemFilters.exclude[MissingTypesProblem]("org.apache.spark.deploy.DeployMessages$LaunchExecutor$")
> [error]  * method requestedTotal()Int in class 
> org.apache.spark.deploy.DeployMessages#RequestExecutors does not have a 
> correspondent in current version
> [error]    filter with: 
> ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.spark.deploy.DeployMessages#RequestExecutors.requestedTotal")
> [error]  * method 
> copy(java.lang.String,Int)org.apache.spark.deploy.DeployMessages#RequestExecutors
>  in class org.apache.spark.deploy.DeployMessages#RequestExecutors's type is 
> different in current version, where it is 
> (java.lang.String,scala.collection.immutable.Map)org.apache.spark.deploy.DeployMessages#RequestExecutors
>  instead of 
> (java.lang.String,Int)org.apache.spark.deploy.DeployMessages#RequestExecutors
> [error]    filter with: 
> ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.spark.deploy.DeployMessages#RequestExecutors.copy")
> [error]  * synthetic method copy$default$2()Int in class 
> org.apache.spark.deploy.DeployMessages#RequestExecutors has a different 
> result type in current version, where it is scala.collection.immutable.Map 
> rather than Int
> [error]    filter with: 
> ProblemFilters.exclude[IncompatibleResultTypeProblem]("org.apache.spark.deploy.DeployMessages#RequestExecutors.copy$default$2")
> [error]  * method this(java.lang.String,Int)Unit in class 
> org.apache.spark.deploy.DeployMessages#RequestExecutors's type is different 
> in current version, where it is 
> (java.lang.String,scala.collection.immutable.Map)Unit instead of 
> (java.lang.String,Int)Unit
> [error]    filter with: 
> ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.spark.deploy.DeployMessages#RequestExecutors.this")
> [error]  * method 
> apply(java.lang.String,Int)org.apache.spark.deploy.DeployMessages#RequestExecutors
>  in object org.apache.spark.deploy.DeployMessages#RequestExecutors in current 
> version does not have a correspondent with same parameter signature among 
> (java.lang.String,scala.collection.immutable.Map)org.apache.spark.deploy.DeployMessages#RequestExecutors,
>  (java.lang.Object,java.lang.Object)java.lang.Object
> [error]    filter with: 
> ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.spark.deploy.DeployMessages#RequestExecutors.apply")
> {code}
> https://github.com/apache/spark/runs/7221231391?check_suite_focus=true



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