Fixed Scala style check errors

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/KubernetesFileUtils.scala

@@ -28,8 +28,9 @@ private[spark] object KubernetesFileUtils {
    * - File URIs with scheme local:// resolve to just the path of the URI.
    * - Otherwise, the URIs are returned as-is.
    */
-  def resolveSubmittedUris(fileUris: Iterable[String], fileDownloadPath: String)
-  : Iterable[String] = {
+  def resolveSubmittedUris(
+      fileUris: Iterable[String],
+      fileDownloadPath: String): Iterable[String] = {
     fileUris.map { uri =>
       val fileUri = Utils.resolveURI(uri)
       val fileScheme = Option(fileUri.getScheme).getOrElse("file")
@@ -64,4 +65,4 @@ private[spark] object KubernetesFileUtils {
       s"$fileDownloadPath/$fileName"
     }
   }
-}
+}

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/steps/BaseDriverConfigurationStep.scala

@@ -123,7 +123,7 @@ private[spark] class BaseDriverConfigurationStep(
         .endEnv()
       .addNewEnv()
         .withName(ENV_DRIVER_ARGS)
-        .withValue(appArgs.mkString(" "))
+        .withValue(appArgs.map(arg => "\"" + arg + "\"").mkString(" "))
         .endEnv()
       .addNewEnv()
         .withName(ENV_DRIVER_BIND_ADDRESS)

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/steps/DependencyResolutionStep.scala

@@ -59,4 +59,4 @@ private[spark] class DependencyResolutionStep(
       driverContainer = driverContainerWithResolvedClasspath,
       driverSparkConf = sparkConfResolvedSparkDependencies)
   }
-}
+}

resource-managers/kubernetes/core/src/test/scala/org/apache/spark/deploy/k8s/submit/steps/BaseDriverConfigurationStepSuite.scala

@@ -33,7 +33,7 @@ class BaseDriverConfigurationStepSuite extends SparkFunSuite {
   private val DOCKER_IMAGE_PULL_POLICY = "IfNotPresent"
   private val APP_NAME = "spark-test"
   private val MAIN_CLASS = "org.apache.spark.examples.SparkPi"
-  private val APP_ARGS = Array("arg1", "arg2")
+  private val APP_ARGS = Array("arg1", "arg2", "arg 3")
   private val CUSTOM_ANNOTATION_KEY = "customAnnotation"
   private val CUSTOM_ANNOTATION_VALUE = "customAnnotationValue"
   private val DRIVER_CUSTOM_ENV_KEY1 = "customDriverEnv1"
@@ -82,7 +82,7 @@ class BaseDriverConfigurationStepSuite extends SparkFunSuite {
     assert(envs(ENV_SUBMIT_EXTRA_CLASSPATH) === "/opt/spark/spark-examples.jar")
     assert(envs(ENV_DRIVER_MEMORY) === "256M")
     assert(envs(ENV_DRIVER_MAIN_CLASS) === MAIN_CLASS)
-    assert(envs(ENV_DRIVER_ARGS) === "arg1 arg2")
+    assert(envs(ENV_DRIVER_ARGS) === "\"arg1\" \"arg2\" \"arg 3\"")
     assert(envs(DRIVER_CUSTOM_ENV_KEY1) === "customDriverEnv1")
     assert(envs(DRIVER_CUSTOM_ENV_KEY2) === "customDriverEnv2")
 

resource-managers/kubernetes/core/src/test/scala/org/apache/spark/deploy/k8s/submit/steps/DependencyResolutionStepSuite.scala

@@ -78,4 +78,4 @@ private[spark] class DependencyResolutionStepSuite extends SparkFunSuite {
       "/var/apps/jars/jar3.jar")
     assert(resolvedDriverClasspath === expectedResolvedDriverClasspath)
   }
-}
+}