Fix scala style (mostly import)

Author: HeartSaVioR

sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/state/StateStoreSuite.scala

@@ -19,21 +19,21 @@ package org.apache.spark.sql.execution.streaming.state
 
 import java.io.{File, IOException}
 import java.net.URI
+import java.util
 import java.util.UUID
 
 import scala.collection.JavaConverters._
 import scala.collection.mutable
 import scala.util.Random
 
-import java.util
 import org.apache.commons.io.FileUtils
 import org.apache.hadoop.conf.Configuration
 import org.apache.hadoop.fs._
 import org.scalatest.{BeforeAndAfter, PrivateMethodTester}
 import org.scalatest.concurrent.Eventually._
 import org.scalatest.time.SpanSugar._
-import org.apache.spark._
 
+import org.apache.spark._
 import org.apache.spark.LocalSparkContext._
 import org.apache.spark.sql.SparkSession
 import org.apache.spark.sql.catalyst.expressions.{GenericInternalRow, UnsafeProjection, UnsafeRow}