Github user andrewor14 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/7091#discussion_r34315069
  
    --- Diff: 
core/src/main/scala/org/apache/spark/scheduler/local/LocalBackend.scala ---
    @@ -97,10 +100,22 @@ private[spark] class LocalBackend(
     
       private val appId = "local-" + System.currentTimeMillis
       var localEndpoint: RpcEndpointRef = null
    +  private val userClassPath = getUserClasspath(conf)
    +
    +  /**
    +   * Returns a list of URLs representing the user classpath.
    +   *
    +   * @param conf Spark configuration.
    +   */
    +  def getUserClasspath(conf: SparkConf): Seq[URL] = {
    +    val userClassPathStr = conf.getOption("spark.executor.extraClassPath")
    +    
userClassPathStr.map(_.split(File.pathSeparator)).toSeq.flatten.map(new URL(_))
    --- End diff --
    
    if you're running in local mode it's unlikely your classpath will be from 
hdfs


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