GitHub user sarutak opened a pull request:
https://github.com/apache/spark/pull/10357
[SPARK-12404] [SQL] Ensure objects passed to StaticInvoke is Serializable
Now `StaticInvoke` receives Any as a object and StaticInvoke can be
serialized but sometimes the object passed is not serializable.
For example, following code raises Exception because
RowEncoder#extractorsFor is invoked indirectly makes `StaticInvoke`.
```
case class TimestampContainer(timestamp: java.sql.Timestamp)
val rdd = sc.parallelize(1 to 2).map(_ =>
TimestampContainer(System.currentTimeMillis))
val df = rdd.toDF
val ds = df.as[TimestampContainer]
val rdd2 = ds.rdd <-----------------
invokes extractorsFor indirectory
```
I'll add test cases.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sarutak/spark SPARK-12404
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10357.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 #10357
----
commit e92ae87e9a5e9258277ff8a0243a84992c12414c
Author: Kousuke Saruta <[email protected]>
Date: 2015-12-17T10:01:48Z
Fixed StaticInvoke to ensure receiving Class object which is serializable
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