[SPARK-17686][CORE] Support printing out scala and java version with …

…spark-submit --version command

## What changes were proposed in this pull request?

In our universal gateway service we need to specify different jars to Spark according to scala version. For now only after launching Spark application can we know which version of Scala it depends on. It makes hard for us to support different Scala + Spark versions to pick the right jars.

So here propose to print out Scala version according to Spark version in "spark-submit --version", so that user could leverage this output to make the choice without needing to launching application.

## How was this patch tested?

Manually verified in local environment.

Author: jerryshao <[email protected]>

Closes apache#15456 from jerryshao/SPARK-17686.

core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala

@@ -24,6 +24,7 @@ import java.security.PrivilegedExceptionAction
 
 import scala.annotation.tailrec
 import scala.collection.mutable.{ArrayBuffer, HashMap, Map}
+import scala.util.Properties
 
 import org.apache.commons.lang3.StringUtils
 import org.apache.hadoop.fs.Path
@@ -47,7 +48,6 @@ import org.apache.spark.deploy.rest._
 import org.apache.spark.launcher.SparkLauncher
 import org.apache.spark.util.{ChildFirstURLClassLoader, MutableURLClassLoader, Utils}
 
-
 /**
  * Whether to submit, kill, or request the status of an application.
  * The latter two operations are currently supported only for standalone and Mesos cluster modes.
@@ -104,6 +104,8 @@ object SparkSubmit {
    /___/ .__/\_,_/_/ /_/\_\   version %s
       /_/
                         """.format(SPARK_VERSION))
+    printStream.println("Using Scala %s, %s, %s".format(
+      Properties.versionString, Properties.javaVmName, Properties.javaVersion))
     printStream.println("Branch %s".format(SPARK_BRANCH))
     printStream.println("Compiled by user %s on %s".format(SPARK_BUILD_USER, SPARK_BUILD_DATE))
     printStream.println("Revision %s".format(SPARK_REVISION))