GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/12142
[SPARK-14358] Change SparkListener from a trait to an abstract class
## What changes were proposed in this pull request?
Scala traits are difficult to maintain binary compatibility on, and as a
result we had to introduce JavaSparkListener. In Spark 2.0 we can change
SparkListener from a trait to an abstract class and then remove
JavaSparkListener.
## How was this patch tested?
Updated related unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rxin/spark SPARK-14358
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12142.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 #12142
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commit 05e4c5ebd7c2d04610b7f9f7e53564d4fb6fe924
Author: Reynold Xin <r...@databricks.com>
Date: 2016-04-04T04:19:32Z
[SPARK-14358] Change SparkListener from a trait to an abstract class
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