[SPARK-5234][ml]examples for ml don't have sparkContext.stop

JIRA issue: https://issues.apache.org/jira/browse/SPARK-5234

simply add the call.

Author: Yuhao Yang <yuhao@yuhaodevbox.sh.intel.com>

Closes #4044 from hhbyyh/addscStop and squashes the following commits:

c1f75ac [Yuhao Yang] add SparkContext.stop to 3 ml examples

(cherry picked from commit 76389c5b99183e456ff85fd92ea68d95c4c13e82)
Signed-off-by: Xiangrui Meng <meng@databricks.com>

3 files changed, 6 insertions, 0 deletions

diff --git a/examples/src/main/scala/org/apache/spark/examples/ml/CrossValidatorExample.scala b/examples/src/main/scala/org/apache/spark/examples/ml/CrossValidatorExample.scala
index ce6bc066bd..d8c7ef38ee 100644
--- a/examples/src/main/scala/org/apache/spark/examples/ml/CrossValidatorExample.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/ml/CrossValidatorExample.scala
@@ -106,5 +106,7 @@ object CrossValidatorExample {
       .foreach { case Row(id: Long, text: String, score: Double, prediction: Double) =>
       println("(" + id + ", " + text + ") --> score=" + score + ", prediction=" + prediction)
     }
+
+    sc.stop()
   }
 }
diff --git a/examples/src/main/scala/org/apache/spark/examples/ml/SimpleParamsExample.scala b/examples/src/main/scala/org/apache/spark/examples/ml/SimpleParamsExample.scala
index 44d5b084c2..e8a2adff92 100644
--- a/examples/src/main/scala/org/apache/spark/examples/ml/SimpleParamsExample.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/ml/SimpleParamsExample.scala
@@ -97,5 +97,7 @@ object SimpleParamsExample {
       .foreach { case Row(features: Vector, label: Double, prob: Double, prediction: Double) =>
         println("(" + features + ", " + label + ") -> prob=" + prob + ", prediction=" + prediction)
       }
+
+    sc.stop()
   }
 }
diff --git a/examples/src/main/scala/org/apache/spark/examples/ml/SimpleTextClassificationPipeline.scala b/examples/src/main/scala/org/apache/spark/examples/ml/SimpleTextClassificationPipeline.scala
index 92895a05e4..b9a6ef0229 100644
--- a/examples/src/main/scala/org/apache/spark/examples/ml/SimpleTextClassificationPipeline.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/ml/SimpleTextClassificationPipeline.scala
@@ -85,5 +85,7 @@ object SimpleTextClassificationPipeline {
       .foreach { case Row(id: Long, text: String, score: Double, prediction: Double) =>
         println("(" + id + ", " + text + ") --> score=" + score + ", prediction=" + prediction)
       }
+
+    sc.stop()
   }
 }