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https://issues.apache.org/jira/browse/SPARK-4998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liu Jiongzhou updated SPARK-4998:
---------------------------------
    Description: 
When using the Java reflection, the several "train" methods defined in "object 
DecisionTree" cannot be identified due to the function with the same name in 
"class DecisionTree".

Since the namesake "train" method in class DecisionTree" has already been a 
deprecated one, it should be commit out to make the "train" methods in "object 
DecisionTree" effective.

  was:
When using the Java reflection, the several "train" methods defined in "object 
DecisionTree" cannot be identified due to there namesake in "class 
DecisionTree".

Since the namesake "train" method in class DecisionTree" has already been a 
deprecated one, it should be commit out to make the "train" methods in "object 
DecisionTree" effective.


> "train" methods in object DecisionTree cannot work when using java reflection
> -----------------------------------------------------------------------------
>
>                 Key: SPARK-4998
>                 URL: https://issues.apache.org/jira/browse/SPARK-4998
>             Project: Spark
>          Issue Type: Bug
>          Components: MLlib
>    Affects Versions: 1.2.0
>            Reporter: Liu Jiongzhou
>
> When using the Java reflection, the several "train" methods defined in 
> "object DecisionTree" cannot be identified due to the function with the same 
> name in "class DecisionTree".
> Since the namesake "train" method in class DecisionTree" has already been a 
> deprecated one, it should be commit out to make the "train" methods in 
> "object DecisionTree" effective.



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