Add System.exit(0) at the end of all the example programs.

examples/src/main/scala/spark/examples/BroadcastTest.scala

@@ -21,5 +21,7 @@ object BroadcastTest {
     spark.parallelize(1 to 10, slices).foreach {
       i => println(barr1.value.size)
     }
+
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/ExceptionHandlingTest.scala

@@ -14,5 +14,7 @@ object ExceptionHandlingTest {
       if (Math.random > 0.75)
         throw new Exception("Testing exception handling")
     }
+
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/GroupByTest.scala

@@ -32,6 +32,8 @@ object GroupByTest {
     pairs1.count
     
     println(pairs1.groupByKey(numReducers).count)
+
+    System.exit(0)
   }
 }
 

examples/src/main/scala/spark/examples/HdfsTest.scala

@@ -14,5 +14,6 @@ object HdfsTest {
       val end = System.currentTimeMillis()
       println("Iteration " + iter + " took " + (end-start) + " ms")
     }
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/MultiBroadcastTest.scala

@@ -26,5 +26,7 @@ object MultiBroadcastTest {
     spark.parallelize(1 to 10, slices).foreach {
       i => println(barr1.value.size + barr2.value.size)
     }
+    
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/SimpleSkewedGroupByTest.scala

@@ -46,6 +46,8 @@ object SimpleSkewedGroupByTest {
     //println("RESULT: " + pairs1.groupByKey(numReducers)
     //                           .map{case (k,v) => (k, v.size)}
     //                           .collectAsMap)
+
+    System.exit(0)
   }
 }
 

examples/src/main/scala/spark/examples/SkewedGroupByTest.scala

@@ -36,6 +36,8 @@ object SkewedGroupByTest {
     pairs1.count
     
     println(pairs1.groupByKey(numReducers).count)
+
+    System.exit(0)
   }
 }
 

examples/src/main/scala/spark/examples/SparkALS.scala

@@ -137,5 +137,7 @@ object SparkALS {
       println("RMSE = " + rmse(R, ms, us))
       println()
     }
+
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/SparkHdfsLR.scala

@@ -47,5 +47,6 @@ object SparkHdfsLR {
     }
 
     println("Final w: " + w)
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/SparkKMeans.scala

@@ -69,5 +69,6 @@ object SparkKMeans {
     }
 
     println("Final centers: " + kPoints)
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/SparkLR.scala

@@ -45,5 +45,6 @@ object SparkLR {
     }
 
     println("Final w: " + w)
+    System.exit(0)
   }
 }

examples/src/main/scala/spark/examples/SparkPi.scala

@@ -19,5 +19,6 @@ object SparkPi {
       if (x*x + y*y < 1) 1 else 0
     }.reduce(_ + _)
     println("Pi is roughly " + 4.0 * count / n)
+    System.exit(0)
   }
 }