Github user jongwook commented on the pull request:
https://github.com/apache/spark/pull/3497#issuecomment-73205703
well, after some disappointment that I have to write `def main(args:
Array[String])` and add an additional level of indentation to the whole file, I
realized that the following works:
```scala
object HowToBroadcast extends App {{
val sc = ...
val broadcast = sc.broadcast(List("Hello", "World"))
sc.parallelize(1 to 10).map(x =>
broadcast.value).collect().foreach(println)
}}
```
Not a very good coding convention but it is a trick to avoid the
discrepancy of the compile-time and runtime behavior of `DelayedInit`, and
captured references get serialized correctly between hosts.
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