error

16/04/03 19:35:35 WARN : Your hostname, ADUTTA-OSX resolves to a loopback/non-reachable address: fe80:0:0:0:e1a7:f47b:461f:59e6%utun2, but we couldn't find any external IP address!
16/04/03 19:35:41 INFO ClientImpl: JOSS / Creating real account instance
16/04/03 19:35:41 INFO ClientImpl: JOSS / * Allow caching: true
16/04/03 19:35:41 INFO ClientImpl: JOSS / Attempting authentication with tenant name: null, tenant ID: null, username: null, Auth URL: https://identity.open.softlayer.com/v3/auth/tokens
16/04/03 19:35:41 INFO ClientImpl: JOSS / Successfully authenticated
Exception in thread "main" java.lang.NullPointerException
	at org.javaswift.joss.client.impl.ClientImpl.createAccount(ClientImpl.java:100)
	at org.javaswift.joss.client.impl.ClientImpl.createAccount(ClientImpl.java:27)
	at org.javaswift.joss.client.core.AbstractClient.authenticate(AbstractClient.java:35)
	at org.javaswift.joss.client.factory.AccountFactory.createAccount(AccountFactory.java:30)
	at com.ibm.stocator.fs.swift.SwiftAPIClient.<init>(SwiftAPIClient.java:180)
	at com.ibm.stocator.fs.ObjectStoreVisitor.getStoreClient(ObjectStoreVisitor.java:37)
	at com.ibm.stocator.fs.ObjectStoreFileSystem.initialize(ObjectStoreFileSystem.java:84)
	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2596)
	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:91)
	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2630)
	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2612)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:370)
	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
	at org.apache.spark.SparkHadoopWriter$.createPathFromString(SparkHadoopWriter.scala:170)
	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$4.apply$mcV$sp(PairRDDFunctions.scala:1059)
	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$4.apply(PairRDDFunctions.scala:1026)
	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$4.apply(PairRDDFunctions.scala:1026)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)
	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)
	at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopFile(PairRDDFunctions.scala:1026)
	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$1.apply$mcV$sp(PairRDDFunctions.scala:952)
	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$1.apply(PairRDDFunctions.scala:952)
	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$1.apply(PairRDDFunctions.scala:952)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)
	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)
	at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopFile(PairRDDFunctions.scala:951)
	at org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1.apply$mcV$sp(RDD.scala:1457)
	at org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1.apply(RDD.scala:1436)
	at org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1.apply(RDD.scala:1436)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)
	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)
	at org.apache.spark.rdd.RDD.saveAsTextFile(RDD.scala:1436)
	at spark_billing$.main(spark_billing.scala:115)
	at spark_billing.main(spark_billing.scala)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:731)
	at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)
	at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)