title: Error when starting spark-shell local on Mac
body: <p>I get the following error when I try to start spark-shell locally on Mac. Because the error occurs while sc is being created, sc is not available afterwards.</p>
  
  <pre><code>[ender@koders:data] $ spark-shell
  Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
  Setting default log level to "WARN".
  To adjust logging level use sc.setLogLevel(newLevel).
  16/12/29 13:57:06 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
  16/12/29 13:57:12 ERROR SparkContext: Error initializing SparkContext.
  java.lang.reflect.InvocationTargetException
      at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
      at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
      at org.apache.spark.executor.Executor.addReplClassLoaderIfNeeded(Executor.scala:453)
      at org.apache.spark.executor.Executor.&lt;init&gt;(Executor.scala:99)
      at org.apache.spark.scheduler.local.LocalEndpoint.&lt;init&gt;(LocalSchedulerBackend.scala:59)
      at org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:126)
      at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:149)
      at org.apache.spark.SparkContext.&lt;init&gt;(SparkContext.scala:497)
      at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2275)
      at org.apache.spark.sql.SparkSession$Builder$$anonfun$8.apply(SparkSession.scala:831)
      at org.apache.spark.sql.SparkSession$Builder$$anonfun$8.apply(SparkSession.scala:823)
      at scala.Option.getOrElse(Option.scala:121)
      at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:823)
      at org.apache.spark.repl.Main$.createSparkSession(Main.scala:95)
      at $line3.$read$$iw$$iw.&lt;init&gt;(&lt;console&gt;:15)
      at $line3.$read$$iw.&lt;init&gt;(&lt;console&gt;:31)
      at $line3.$read.&lt;init&gt;(&lt;console&gt;:33)
      at $line3.$read$.&lt;init&gt;(&lt;console&gt;:37)
      at $line3.$read$.&lt;clinit&gt;(&lt;console&gt;)
      at $line3.$eval$.$print$lzycompute(&lt;console&gt;:7)
      at $line3.$eval$.$print(&lt;console&gt;:6)
      at $line3.$eval.$print(&lt;console&gt;)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:786)
      at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1047)
      at scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:638)
      at scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:637)
      at scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)
      at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:19)
      at scala.tools.nsc.interpreter.IMain$WrappedRequest.loadAndRunReq(IMain.scala:637)
      at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:569)
      at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:565)
      at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:807)
      at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:681)
      at scala.tools.nsc.interpreter.ILoop.processLine(ILoop.scala:395)
      at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply$mcV$sp(SparkILoop.scala:38)
      at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply(SparkILoop.scala:37)
      at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply(SparkILoop.scala:37)
      at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:214)
      at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:37)
      at org.apache.spark.repl.SparkILoop.loadFiles(SparkILoop.scala:94)
      at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:920)
      at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:909)
      at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:909)
      at scala.reflect.internal.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:97)
      at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:909)
      at org.apache.spark.repl.Main$.doMain(Main.scala:68)
      at org.apache.spark.repl.Main$.main(Main.scala:51)
      at org.apache.spark.repl.Main.main(Main.scala)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:736)
      at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:185)
      at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:210)
      at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:124)
      at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
  Caused by: java.net.URISyntaxException: Malformed escape pair at index 38: spark://fe80:0:0:0:44cd:86ff:fe5b:cd90%7:61707/classes
      at java.net.URI$Parser.fail(URI.java:2848)
      at java.net.URI$Parser.scanEscape(URI.java:2978)
      at java.net.URI$Parser.scan(URI.java:3001)
      at java.net.URI$Parser.parseAuthority(URI.java:3142)
      at java.net.URI$Parser.parseHierarchical(URI.java:3097)
      at java.net.URI$Parser.parse(URI.java:3053)
      at java.net.URI.&lt;init&gt;(URI.java:588)
      at org.apache.spark.repl.ExecutorClassLoader.&lt;init&gt;(ExecutorClassLoader.scala:48)
      ... 63 more
  16/12/29 13:57:12 ERROR Utils: Uncaught exception in thread main
  java.lang.NullPointerException
      at org.apache.spark.scheduler.local.LocalSchedulerBackend.org$apache$spark$scheduler$local$LocalSchedulerBackend$$stop(LocalSchedulerBackend.scala:158)
      at org.apache.spark.scheduler.local.LocalSchedulerBackend.stop(LocalSchedulerBackend.scala:137)
      at org.apache.spark.scheduler.TaskSchedulerImpl.stop(TaskSchedulerImpl.scala:455)
      at org.apache.spark.scheduler.DAGScheduler.stop(DAGScheduler.scala:1605)
      at org.apache.spark.SparkContext$$anonfun$stop$8.apply$mcV$sp(SparkContext.scala:1798)
      at org.apache.spark.util.Utils$.tryLogNonFatalError(Utils.scala:1287)
      at org.apache.spark.SparkContext.stop(SparkContext.scala:1797)
      at org.apache.spark.SparkContext.&lt;init&gt;(SparkContext.scala:565)
      at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2275)
      at org.apache.spark.sql.SparkSession$Builder$$anonfun$8.apply(SparkSession.scala:831)
      at org.apache.spark.sql.SparkSession$Builder$$anonfun$8.apply(SparkSession.scala:823)
      at scala.Option.getOrElse(Option.scala:121)
      at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:823)
      at org.apache.spark.repl.Main$.createSparkSession(Main.scala:95)
      at $line3.$read$$iw$$iw.&lt;init&gt;(&lt;console&gt;:15)
      at $line3.$read$$iw.&lt;init&gt;(&lt;console&gt;:31)
      at $line3.$read.&lt;init&gt;(&lt;console&gt;:33)
      at $line3.$read$.&lt;init&gt;(&lt;console&gt;:37)
      at $line3.$read$.&lt;clinit&gt;(&lt;console&gt;)
      at $line3.$eval$.$print$lzycompute(&lt;console&gt;:7)
      at $line3.$eval$.$print(&lt;console&gt;:6)
      at $line3.$eval.$print(&lt;console&gt;)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:786)
      at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1047)
      at scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:638)
      at scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:637)
      at scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)
      at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:19)
      at scala.tools.nsc.interpreter.IMain$WrappedRequest.loadAndRunReq(IMain.scala:637)
      at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:569)
      at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:565)
      at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:807)
      at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:681)
      at scala.tools.nsc.interpreter.ILoop.processLine(ILoop.scala:395)
      at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply$mcV$sp(SparkILoop.scala:38)
      at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply(SparkILoop.scala:37)
      at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply(SparkILoop.scala:37)
      at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:214)
      at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:37)
      at org.apache.spark.repl.SparkILoop.loadFiles(SparkILoop.scala:94)
      at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:920)
      at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:909)
      at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:909)
      at scala.reflect.internal.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:97)
      at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:909)
      at org.apache.spark.repl.Main$.doMain(Main.scala:68)
      at org.apache.spark.repl.Main$.main(Main.scala:51)
      at org.apache.spark.repl.Main.main(Main.scala)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:736)
      at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:185)
      at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:210)
      at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:124)
      at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
  16/12/29 13:57:12 WARN MetricsSystem: Stopping a MetricsSystem that is not running
  java.net.URISyntaxException: Malformed escape pair at index 38: spark://fe80:0:0:0:44cd:86ff:fe5b:cd90%7:61707/classes
    at java.net.URI$Parser.fail(URI.java:2848)
    at java.net.URI$Parser.scanEscape(URI.java:2978)
    at java.net.URI$Parser.scan(URI.java:3001)
    at java.net.URI$Parser.parseAuthority(URI.java:3142)
    at java.net.URI$Parser.parseHierarchical(URI.java:3097)
    at java.net.URI$Parser.parse(URI.java:3053)
    at java.net.URI.&lt;init&gt;(URI.java:588)
    at org.apache.spark.repl.ExecutorClassLoader.&lt;init&gt;(ExecutorClassLoader.scala:48)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.spark.executor.Executor.addReplClassLoaderIfNeeded(Executor.scala:453)
    at org.apache.spark.executor.Executor.&lt;init&gt;(Executor.scala:99)
    at org.apache.spark.scheduler.local.LocalEndpoint.&lt;init&gt;(LocalSchedulerBackend.scala:59)
    at org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:126)
    at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:149)
    at org.apache.spark.SparkContext.&lt;init&gt;(SparkContext.scala:497)
    at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2275)
    at org.apache.spark.sql.SparkSession$Builder$$anonfun$8.apply(SparkSession.scala:831)
  
  
    at org.apache.spark.sql.SparkSession$Builder$$anonfun$8.apply(SparkSession.scala:823)
    at scala.Option.getOrElse(Option.scala:121)
    at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:823)
    at org.apache.spark.repl.Main$.createSparkSession(Main.scala:95)
    ... 47 elided
  &lt;console&gt;:14: error: not found: value spark
         import spark.implicits._
                ^
  &lt;console&gt;:14: error: not found: value spark
         import spark.sql
                ^
  Welcome to
        ____              __
       / __/__  ___ _____/ /__
      _\ \/ _ \/ _ `/ __/  '_/
     /___/ .__/\_,_/_/ /_/\_\   version 2.0.1
        /_/
  
  Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_101)
  Type in expressions to have them evaluated.
  Type :help for more information.
  
  scala&gt; sc
  &lt;console&gt;:18: error: not found: value sc
         sc
         ^
  </code></pre>