[SPARK-9791] [PACKAGE] Change private class to private class to prevent unnecessary classes from showing up in the docs

In addition, some random cleanup of import ordering

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #8387 from tdas/SPARK-9791 and squashes the following commits:

67f3ee9 [Tathagata Das] Change private class to private[package] class to prevent them from showing up in the docs

2 files changed, 4 insertions, 4 deletions

diff --git a/external/mqtt/src/main/scala/org/apache/spark/streaming/mqtt/MQTTUtils.scala b/external/mqtt/src/main/scala/org/apache/spark/streaming/mqtt/MQTTUtils.scala
index 38a1114863..7b8d56d6fa 100644
--- a/external/mqtt/src/main/scala/org/apache/spark/streaming/mqtt/MQTTUtils.scala
+++ b/external/mqtt/src/main/scala/org/apache/spark/streaming/mqtt/MQTTUtils.scala
@@ -21,8 +21,8 @@ import scala.reflect.ClassTag
 
 import org.apache.spark.storage.StorageLevel
 import org.apache.spark.streaming.StreamingContext
-import org.apache.spark.streaming.api.java.{JavaReceiverInputDStream, JavaStreamingContext, JavaDStream}
-import org.apache.spark.streaming.dstream.{ReceiverInputDStream, DStream}
+import org.apache.spark.streaming.api.java.{JavaDStream, JavaReceiverInputDStream, JavaStreamingContext}
+import org.apache.spark.streaming.dstream.ReceiverInputDStream
 
 object MQTTUtils {
   /**
@@ -79,7 +79,7 @@ object MQTTUtils {
  * This is a helper class that wraps the methods in MQTTUtils into more Python-friendly class and
  * function so that it can be easily instantiated and called from Python's MQTTUtils.
  */
-private class MQTTUtilsPythonHelper {
+private[mqtt] class MQTTUtilsPythonHelper {
 
   def createStream(
       jssc: JavaStreamingContext,
diff --git a/external/mqtt/src/test/scala/org/apache/spark/streaming/mqtt/MQTTTestUtils.scala b/external/mqtt/src/test/scala/org/apache/spark/streaming/mqtt/MQTTTestUtils.scala
index 1a371b7008..1618e2c088 100644
--- a/external/mqtt/src/test/scala/org/apache/spark/streaming/mqtt/MQTTTestUtils.scala
+++ b/external/mqtt/src/test/scala/org/apache/spark/streaming/mqtt/MQTTTestUtils.scala
@@ -33,7 +33,7 @@ import org.apache.spark.{Logging, SparkConf}
 /**
  * Share codes for Scala and Python unit tests
  */
-private class MQTTTestUtils extends Logging {
+private[mqtt] class MQTTTestUtils extends Logging {
 
   private val persistenceDir = Utils.createTempDir()
   private val brokerHost = "localhost"