Fix some test issues

core/src/main/scala/spark/SparkEnv.scala

@@ -40,6 +40,8 @@ class SparkEnv (
     blockManager.stop()
     blockManager.master.stop()
     actorSystem.shutdown()
+    // Akka's awaitTermination doesn't actually wait until the port is unbound, so sleep a bit
+    Thread.sleep(100)
     actorSystem.awaitTermination()
     // Akka's awaitTermination doesn't actually wait until the port is unbound, so sleep a bit
     Thread.sleep(100)

core/src/test/scala/spark/DistributedSuite.scala

@@ -18,7 +18,7 @@ class DistributedSuite extends FunSuite with ShouldMatchers with BeforeAndAfter
 
   val clusterUrl = "local-cluster[2,1,512]"
   
-  var sc: SparkContext = _
+  @transient var sc: SparkContext = _
   
   after {
     if (sc != null) {

core/src/test/scala/spark/FileServerSuite.scala

@@ -3,14 +3,14 @@ package spark
 import com.google.common.io.Files
 import org.scalatest.FunSuite
 import org.scalatest.BeforeAndAfter
-import java.io.{File, PrintWriter}
+import java.io.{File, PrintWriter, FileReader, BufferedReader}
 import SparkContext._
 
 class FileServerSuite extends FunSuite with BeforeAndAfter {
   
-  var sc: SparkContext = _
-  var tmpFile : File = _ 
-  var testJarFile : File = _ 
+  @transient var sc: SparkContext = _
+  @transient var tmpFile : File = _
+  @transient var testJarFile : File = _
   
   before {
     // Create a sample text file
@@ -38,7 +38,7 @@ class FileServerSuite extends FunSuite with BeforeAndAfter {
     sc.addFile(tmpFile.toString)
     val testData = Array((1,1), (1,1), (2,1), (3,5), (2,2), (3,0))
     val result = sc.parallelize(testData).reduceByKey {
-      val in  = new java.io.BufferedReader(new java.io.FileReader(tmpFile))
+      val in  = new BufferedReader(new FileReader("FileServerSuite.txt"))
       val fileVal = in.readLine().toInt
       in.close()
       _ * fileVal + _ * fileVal
@@ -53,7 +53,9 @@ class FileServerSuite extends FunSuite with BeforeAndAfter {
     sc.addJar(sampleJarFile)
     val testData = Array((1,1), (1,1), (2,1), (3,5), (2,3), (3,0))
     val result = sc.parallelize(testData).reduceByKey { (x,y) => 
-      val fac = Thread.currentThread.getContextClassLoader().loadClass("org.uncommons.maths.Maths").getDeclaredMethod("factorial", classOf[Int])
+      val fac = Thread.currentThread.getContextClassLoader()
+                                    .loadClass("org.uncommons.maths.Maths")
+                                    .getDeclaredMethod("factorial", classOf[Int])
       val a = fac.invoke(null, x.asInstanceOf[java.lang.Integer]).asInstanceOf[Long].toInt
       val b = fac.invoke(null, y.asInstanceOf[java.lang.Integer]).asInstanceOf[Long].toInt
       a + b
@@ -66,7 +68,7 @@ class FileServerSuite extends FunSuite with BeforeAndAfter {
     sc.addFile(tmpFile.toString)
     val testData = Array((1,1), (1,1), (2,1), (3,5), (2,2), (3,0))
     val result = sc.parallelize(testData).reduceByKey {
-      val in  = new java.io.BufferedReader(new java.io.FileReader(tmpFile))
+      val in  = new BufferedReader(new FileReader("FileServerSuite.txt"))
       val fileVal = in.readLine().toInt
       in.close()
       _ * fileVal + _ * fileVal
@@ -75,19 +77,19 @@ class FileServerSuite extends FunSuite with BeforeAndAfter {
     assert(result.toSet === Set((1,200), (2,300), (3,500)))
   }
 
-
   test ("Dynamically adding JARS on a standalone cluster") {
     sc = new SparkContext("local-cluster[1,1,512]", "test")
     val sampleJarFile = getClass().getClassLoader().getResource("uncommons-maths-1.2.2.jar").getFile()
     sc.addJar(sampleJarFile)
     val testData = Array((1,1), (1,1), (2,1), (3,5), (2,3), (3,0))
     val result = sc.parallelize(testData).reduceByKey { (x,y) => 
-      val fac = Thread.currentThread.getContextClassLoader().loadClass("org.uncommons.maths.Maths").getDeclaredMethod("factorial", classOf[Int])
+      val fac = Thread.currentThread.getContextClassLoader()
+                                    .loadClass("org.uncommons.maths.Maths")
+                                    .getDeclaredMethod("factorial", classOf[Int])
       val a = fac.invoke(null, x.asInstanceOf[java.lang.Integer]).asInstanceOf[Long].toInt
       val b = fac.invoke(null, y.asInstanceOf[java.lang.Integer]).asInstanceOf[Long].toInt
       a + b
     }.collect()
     assert(result.toSet === Set((1,2), (2,7), (3,121)))
   }
-  
-}
\ No newline at end of file
+}