Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/5820#discussion_r29567544
--- Diff:
examples/src/main/scala/org/apache/spark/examples/ml/DeveloperApiExample.scala
---
@@ -176,9 +172,7 @@ private class MyLogisticRegressionModel(
*
* This is used for the default implementation of [[transform()]].
*/
- override protected def copy(): MyLogisticRegressionModel = {
- val m = new MyLogisticRegressionModel(parent, fittingParamMap, weights)
- Params.inheritValues(extractParamMap(), this, m)
- m
+ override def copy(extra: ParamMap): MyLogisticRegressionModel = {
+ copyValues(new MyLogisticRegressionModel(parent, weights), extra)
}
--- End diff --
There have been many issues with `clone`. So I would avoid touching it. See:
https://developers.google.com/java-dev-tools/codepro/doc/features/audit/audit_rules_com.instantiations.assist.eclipse.auditGroup.cloneUsage
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