Github user jkbradley commented on the pull request:
https://github.com/apache/spark/pull/10724#issuecomment-172137570
@yinxusen I spoke with @davies and I think it would be best to use
```_call_java``` wherever possible for simplicity. Otherwise, developers have
to remember to put ```list()``` around the JVM methods they call.
Since you have created [https://github.com/apache/spark/pull/10772], let's
use it to create the fix. @davies said your original fix (in Scala in
[https://github.com/yinxusen/spark/commit/c5a170da04f9941f4515f3263939bab9886c2c85])
seemed reasonable, so perhaps use that if your new one is not working. After
that gets merged, we can return to this and the other PRs.
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