add jsc stop

examples/src/main/java/org/apache/spark/examples/ml/JavaBinarizerExample.java

@@ -63,5 +63,6 @@ public static void main(String[] args) {
       System.out.println(binarized_value);
     }
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaBucketizerExample.java

@@ -63,6 +63,7 @@ public static void main(String[] args) {
     // Transform original data into its bucket index.
     DataFrame bucketedData = bucketizer.transform(dataFrame);
     // $example off$
+    jsc.stop();
   }
 }
 

examples/src/main/java/org/apache/spark/examples/ml/JavaDCTExample.java

@@ -59,6 +59,7 @@ public static void main(String[] args) {
     DataFrame dctDf = dct.transform(df);
     dctDf.select("featuresDCT").show(3);
     // $example off$
+    jsc.stop();
   }
 }
 

examples/src/main/java/org/apache/spark/examples/ml/JavaElementwiseProductExample.java

@@ -69,5 +69,6 @@ public static void main(String[] args) {
     // Batch transform the vectors to create new column:
     transformer.transform(dataFrame).show();
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaNGramExample.java

@@ -66,5 +66,6 @@ public static void main(String[] args) {
       System.out.println();
     }
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaNormalizerExample.java

@@ -47,5 +47,6 @@ public static void main(String[] args) {
     DataFrame lInfNormData =
       normalizer.transform(dataFrame, normalizer.p().w(Double.POSITIVE_INFINITY));
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaOneHotEncoderExample.java

@@ -71,6 +71,7 @@ public static void main(String[] args) {
       .setOutputCol("categoryVec");
     DataFrame encoded = encoder.transform(indexed);
     // $example off$
+    jsc.stop();
   }
 }
 

examples/src/main/java/org/apache/spark/examples/ml/JavaPCAExample.java

@@ -65,6 +65,7 @@ public static void main(String[] args) {
     DataFrame result = pca.transform(df).select("pcaFeatures");
     result.show();
     // $example off$
+    jsc.stop();
   }
 }
 

examples/src/main/java/org/apache/spark/examples/ml/JavaPolynomialExpansionExample.java

@@ -66,5 +66,6 @@ public static void main(String[] args) {
       System.out.println(r.get(0));
     }
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaRFormulaExample.java

@@ -63,6 +63,7 @@ public static void main(String[] args) {
     DataFrame output = formula.fit(dataset).transform(dataset);
     output.select("features", "label").show();
     // $example off$
+    jsc.stop();
   }
 }
 

examples/src/main/java/org/apache/spark/examples/ml/JavaStandardScalerExample.java

@@ -48,5 +48,6 @@ public static void main(String[] args) {
     // Normalize each feature to have unit standard deviation.
     DataFrame scaledData = scalerModel.transform(dataFrame);
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaStopWordsRemover.java

@@ -60,5 +60,6 @@ public static void main(String[] args) {
     DataFrame dataset = jsql.createDataFrame(rdd, schema);
     remover.transform(dataset).show();
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaStringIndexerExample.java

@@ -61,5 +61,6 @@ public static void main(String[] args) {
     DataFrame indexed = indexer.fit(df).transform(df);
     indexed.show();
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaTokenizerExample.java

@@ -70,5 +70,6 @@ public static void main(String[] args) {
       .setOutputCol("words")
       .setPattern("\\W");  // alternatively .setPattern("\\w+").setGaps(false);
     // example off
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaVectorAssemblerExample.java

@@ -61,6 +61,7 @@ public static void main(String[] args) {
     DataFrame output = assembler.transform(dataset);
     System.out.println(output.select("features", "clicked").first());
     // $example off$
+    jsc.stop();
   }
 }
 

examples/src/main/java/org/apache/spark/examples/ml/JavaVectorIndexerExample.java

@@ -54,5 +54,6 @@ public static void main(String[] args) {
     // Create new column "indexed" with categorical values transformed to indices
     DataFrame indexedData = indexerModel.transform(data);
     // $example off$
+    jsc.stop();
   }
 }

examples/src/main/java/org/apache/spark/examples/ml/JavaVectorSlicerExample.java

@@ -67,6 +67,7 @@ public static void main(String[] args) {
 
     System.out.println(output.select("userFeatures", "features").first());
     // $example off$
+    jsc.stop();
   }
 }