zhengruifeng commented on code in PR #43739:
URL: https://github.com/apache/spark/pull/43739#discussion_r1388656184
##########
mllib/src/test/scala/org/apache/spark/ml/FunctionsSuite.scala:
##########
@@ -101,4 +102,41 @@ class FunctionsSuite extends MLTest {
val resultVec3 =
df3.select(array_to_vector(col("c1"))).collect()(0)(0).asInstanceOf[Vector]
assert(resultVec3 === Vectors.dense(Array(1.0, 2.0)))
}
+
+ test("SPARK-45859: 'functions$' should not be affected by a broken class
loader") {
+ quietly {
+ // Only one SparkContext should be running in this JVM (see SPARK-2243)
+ sc.stop()
Review Comment:
good point, we'd better close `sc` in this UT, in case contributors add new
UTs after this one and tested with non-expected `sc`
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