Fail to create SparkSession when connecting to remote Spark

When connecting to remote Spark cluster, fails to execute job with NPE when trying to create Spark Session because outputDir has not been assigned yet.

DEBUG [2016-08-28 11:42:12,733] (

{pool-2-thread-2} Logging.scala[logDebug]:58) - Adding shutdown hook
DEBUG [2016-08-28 11:42:14,735] ({pool-2-thread-2}

Interpreter.java[getProperty]:179) - key: master, value: spark://192.168.1.102:7077
INFO [2016-08-28 11:42:14,735] (

{pool-2-thread-2} SparkInterpreter.java[createSparkSession]:299) - ------ Create new SparkContext spark://192.168.1.102:7077 -------
DEBUG [2016-08-28 11:42:14,735] ({pool-2-thread-2}

Interpreter.java[getProperty]:179) - key: spark.app.name, value: Zeppelin
DEBUG [2016-08-28 11:42:14,735] (

{pool-1-thread-5}

Interpreter.java[getProperty]:179) - key: master, value: spark://192.168.1.102:7077
ERROR [2016-08-28 11:42:14,736] (

{pool-2-thread-2}

Job.java[run]:182) - Job failed
java.lang.NullPointerException
at org.apache.zeppelin.spark.SparkInterpreter.createSparkSession(SparkInterpreter.java:307)
at org.apache.zeppelin.spark.SparkInterpreter.getSparkSession(SparkInterpreter.java:218)
at org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:748)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:93)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:385)
at org.apache.zeppelin.scheduler.Job.run(Job.java:176)
at org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:139)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)