Using REST API in Java to Submit Spark Job with Livy in Kerberos and SSL
mvn exec:java -Dexec.mainClass="o9.sparklivy.poc.SparkYarnRestClient"
mvn clean compile assembly:single
java -cp target/spark_livy_api-1.0-SNAPSHOT-jar-with-dependencies.jar o9.sparklivy.poc.SparkYarnRestClient