GitHub user mgaido91 opened a pull request:
https://github.com/apache/spark/pull/22076
[SPARK-25090][ML] Enforce implicit type coercion in ParamGridBuilder
## What changes were proposed in this pull request?
When the grid of the parameters is created in `ParamGridBuilder`, the
implicit type coercion is not enforced. So using an integer in the list of
parameters to set for a parameter accepting a double can cause a class cast
exception.
The PR proposes to enforce the type coercion when building the parameters.
## How was this patch tested?
added UT
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mgaido91/spark SPARK-25090
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22076.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #22076
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commit b5a59fdc71226323008561053cf918e079934f0a
Author: Marco Gaido <marcogaido91@...>
Date: 2018-08-11T10:07:31Z
[SPARK-25090][ML] Enforce implicit type coercion in ParamGridBuilder
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