Add addSparkListener to JavaSparkContext

Author: JoshRosen

core/src/main/scala/org/apache/spark/api/java/JavaSparkContext.scala

@@ -34,7 +34,7 @@ import org.apache.hadoop.mapreduce.{InputFormat => NewInputFormat}
 
 import org.apache.spark._
 import org.apache.spark.AccumulatorParam._
-import org.apache.spark.annotation.Experimental
+import org.apache.spark.annotation.{DeveloperApi, Experimental}
 import org.apache.spark.api.java.JavaSparkContext.fakeClassTag
 import org.apache.spark.broadcast.Broadcast
 import org.apache.spark.rdd.{EmptyRDD, HadoopRDD, NewHadoopRDD, RDD}
@@ -688,6 +688,15 @@ class JavaSparkContext(val sc: SparkContext)
     sc.clearFiles()
   }
 
+  /**
+   * :: DeveloperApi ::
+   * Register a listener to receive up-calls from events that happen during execution.
+   */
+  @DeveloperApi
+  def addSparkListener(listener: SparkListener): Unit = {
+    sc.addSparkListener(listener)
+  }
+
   /**
    * Returns the Hadoop configuration used for the Hadoop code (e.g. file systems) we reuse.
    */