Hisoka-X commented on code in PR #43126:
URL: https://github.com/apache/spark/pull/43126#discussion_r1339915362


##########
mllib/src/main/scala/org/apache/spark/mllib/api/python/GaussianMixtureModelWrapper.scala:
##########
@@ -37,7 +37,7 @@ private[python] class GaussianMixtureModelWrapper(model: 
GaussianMixtureModel) {
     val modelGaussians = model.gaussians.map { gaussian =>
       Array[Any](gaussian.mu, gaussian.sigma)
     }
-    SerDe.dumps(JavaConverters.seqAsJavaListConverter(modelGaussians).asJava)
+    SerDe.dumps(modelGaussians.toSeq.asJava)

Review Comment:
   I'm not sure about we should do this, if we do that, should we change other 
`toSeq`? Which `toSeq` need to be modified and which ones do not? Are there any 
rules?



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