Github user andrewor14 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/7459#discussion_r34953369
  
    --- Diff: 
core/src/test/scala/org/apache/spark/util/ClosureCleanerSuite2.scala ---
    @@ -171,14 +167,20 @@ class ClosureCleanerSuite2 extends SparkFunSuite with 
BeforeAndAfterAll with Pri
         val closure2 = () => localValue
         val closure3 = () => someSerializableValue
         val closure4 = () => someSerializableMethod()
    -    val outerClasses1 = getOuterClasses(closure1)
    -    val outerClasses2 = getOuterClasses(closure2)
    -    val outerClasses3 = getOuterClasses(closure3)
    -    val outerClasses4 = getOuterClasses(closure4)
    -    val outerObjects1 = getOuterObjects(closure1)
    -    val outerObjects2 = getOuterObjects(closure2)
    -    val outerObjects3 = getOuterObjects(closure3)
    -    val outerObjects4 = getOuterObjects(closure4)
    +
    +    val outerClassesAndObject1 = getOuterClassesAndObjects(closure1)
    --- End diff --
    
    you should just do
    ```
    val (outerClasses1, outerObjects1) = getOuterClassesAndObjects(closure1)
    ...
    ```
    to be more concise


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