Move JavaRDDLike.coalesce into the right places.

core/src/main/scala/spark/api/java/JavaDoubleRDD.scala

@@ -52,6 +52,11 @@ class JavaDoubleRDD(val srdd: RDD[scala.Double]) extends JavaRDDLike[Double, Jav
   def filter(f: JFunction[Double, java.lang.Boolean]): JavaDoubleRDD =
     fromRDD(srdd.filter(x => f(x).booleanValue()))
 
+  /**
+   * Return a new RDD that is reduced into `numSplits` partitions.
+   */
+  def coalesce(numSplits: Int): JavaDoubleRDD = fromRDD(srdd.coalesce(numSplits))
+
   /**
    * Return a sampled subset of this RDD.
    */

core/src/main/scala/spark/api/java/JavaPairRDD.scala

@@ -62,6 +62,11 @@ class JavaPairRDD[K, V](val rdd: RDD[(K, V)])(implicit val kManifest: ClassManif
   def filter(f: Function[(K, V), java.lang.Boolean]): JavaPairRDD[K, V] =
     new JavaPairRDD[K, V](rdd.filter(x => f(x).booleanValue()))
 
+  /**
+   * Return a new RDD that is reduced into `numSplits` partitions.
+   */
+  def coalesce(numSplits: Int): JavaPairRDD[K, V] = new JavaPairRDD[K, V](rdd.coalesce(numSplits))
+
   /**
    * Return a sampled subset of this RDD.
    */

core/src/main/scala/spark/api/java/JavaRDD.scala

@@ -38,6 +38,11 @@ JavaRDDLike[T, JavaRDD[T]] {
   def filter(f: JFunction[T, java.lang.Boolean]): JavaRDD[T] =
     wrapRDD(rdd.filter((x => f(x).booleanValue())))
 
+  /**
+   * Return a new RDD that is reduced into `numSplits` partitions.
+   */
+  def coalesce(numSplits: Int): JavaRDD[T] = rdd.coalesce(numSplits)
+
   /**
    * Return a sampled subset of this RDD.
    */

core/src/main/scala/spark/api/java/JavaRDDLike.scala

@@ -130,11 +130,6 @@ trait JavaRDDLike[T, This <: JavaRDDLike[T, This]] extends PairFlatMapWorkaround
     JavaPairRDD.fromRDD(rdd.cartesian(other.rdd)(other.classManifest))(classManifest,
       other.classManifest)
 
-  /**
-   * Return a new RDD that is reduced into `numSplits` partitions.
-   */
-  def coalesce(numSplits: Int): JavaRDD[T] = rdd.coalesce(numSplits)
-
   /**
    * Return an RDD of grouped elements. Each group consists of a key and a sequence of elements
    * mapping to that key.