Commits on Jan 27, 2016

1. [SPARK-12834] Change ser/de of JavaArray and JavaList …

   https://issues.apache.org/jira/browse/SPARK-12834
   
   We use `SerDe.dumps()` to serialize `JavaArray` and `JavaList` in `PythonMLLibAPI`, then deserialize them with `PickleSerializer` in Python side. However, there is no need to transform them in such an inefficient way. Instead of it, we can use type conversion to convert them, e.g. `list(JavaArray)` or `list(JavaList)`. What's more, there is an issue to Ser/De Scala Array as I said in https://issues.apache.org/jira/browse/SPARK-12780
   
   Author: Xusen Yin <yinxusen@gmail.com>
   
   Closes apache#10772 from yinxusen/SPARK-12834.

   

   yinxusen authored and jkbradley committed Jan 27, 2016
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