Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/42#discussion_r10641868
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -1020,6 +1042,24 @@ class SparkContext(
/** Register a new RDD, returning its RDD ID */
private[spark] def newRddId(): Int = nextRddId.getAndIncrement()
+ /** Post the environment update event if the listener bus is ready */
+ private def postEnvironmentUpdate() {
+ Option(listenerBus).foreach { bus =>
--- End diff --
If there is no normal case where it can be undefined, I'd rather just do
`listenerBus.get`. In other words, I think it's not a great pattern to use
`Option` to hide things that are actually code bugs. We should just use
`Option` when there is a legitimate case where it hasn't been initialized.
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