Minor updates.

external/kafka/src/test/java/org/apache/spark/streaming/kafka/JavaKafkaStreamSuite.java

@@ -80,8 +80,8 @@ public void testKafkaStream() throws InterruptedException {
     suiteBase.createTopic(topic);
     HashMap<String, Object> tmp = new HashMap<String, Object>(sent);
     suiteBase.produceAndSendMessage(topic,
-            JavaConverters.mapAsScalaMapConverter(tmp).asScala().toMap(
-                    Predef.<Tuple2<String, Object>>conforms()));
+        JavaConverters.mapAsScalaMapConverter(tmp).asScala().toMap(
+            Predef.<Tuple2<String, Object>>conforms()));
 
     HashMap<String, String> kafkaParams = new HashMap<String, String>();
     kafkaParams.put("zookeeper.connect", suiteBase.zkAddress());

external/kafka/src/test/scala/org/apache/spark/streaming/kafka/ReliableKafkaStreamSuite.scala

@@ -44,15 +44,14 @@ class ReliableKafkaStreamSuite extends KafkaStreamSuiteBase with BeforeAndAfter
     .set("spark.streaming.receiver.writeAheadLog.enable", "true")
   val data = Map("a" -> 10, "b" -> 10, "c" -> 10)
 
-  var topic: String = _
+
   var groupId: String = _
   var kafkaParams: Map[String, String] = _
   var ssc: StreamingContext = _
   var tempDirectory: File = null
 
   before {
     setupKafka()
-    topic = s"test-topic-${Random.nextInt(10000)}"
     groupId = s"test-consumer-${Random.nextInt(10000)}"
     kafkaParams = Map(
       "zookeeper.connect" -> zkAddress,
@@ -78,6 +77,7 @@ class ReliableKafkaStreamSuite extends KafkaStreamSuiteBase with BeforeAndAfter
 
 
   test("Reliable Kafka input stream with single topic") {
+    var topic = "test-topic"
     createTopic(topic)
     produceAndSendMessage(topic, data)
 
@@ -95,7 +95,6 @@ class ReliableKafkaStreamSuite extends KafkaStreamSuiteBase with BeforeAndAfter
         }
       }
     ssc.start()
-
     eventually(timeout(20000 milliseconds), interval(200 milliseconds)) {
       // A basic process verification for ReliableKafkaReceiver.
       // Verify whether received message number is equal to the sent message number.
@@ -104,26 +103,10 @@ class ReliableKafkaStreamSuite extends KafkaStreamSuiteBase with BeforeAndAfter
       data.keys.foreach { k => assert(data(k) === result(k).toInt) }
       // Verify the offset number whether it is equal to the total message number.
       assert(getCommitOffset(groupId, topic, 0) === Some(29L))
-
     }
     ssc.stop()
   }
-/*
-  test("Verify the offset commit") {
-    // Verify the correctness of offset commit mechanism.
-    createTopic(topic)
-    produceAndSendMessage(topic, data)
 
-    // Do this to consume all the message of this group/topic.
-    val stream = KafkaUtils.createStream[String, String, StringDecoder, StringDecoder](
-      ssc, kafkaParams, Map(topic -> 1), StorageLevel.MEMORY_ONLY)
-    stream.foreachRDD(_ => Unit)
-    ssc.start()
-    eventually(timeout(20000 milliseconds), interval(200 milliseconds)) {
-    }
-    ssc.stop()
-  }
-*/
   test("Reliable Kafka input stream with multiple topics") {
     val topics = Map("topic1" -> 1, "topic2" -> 1, "topic3" -> 1)
     topics.foreach { case (t, _) =>
@@ -152,7 +135,6 @@ class ReliableKafkaStreamSuite extends KafkaStreamSuiteBase with BeforeAndAfter
     assert(zkClient != null, "Zookeeper client is not initialized")
     val topicDirs = new ZKGroupTopicDirs(groupId, topic)
     val zkPath = s"${topicDirs.consumerOffsetDir}/$partition"
-    val offset = ZkUtils.readDataMaybeNull(zkClient, zkPath)._1.map(_.toLong)
-    offset
+    ZkUtils.readDataMaybeNull(zkClient, zkPath)._1.map(_.toLong)
   }
 }