Github user jiangxb1987 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/21514#discussion_r194296152
  
    --- Diff: 
core/src/main/scala/org/apache/spark/scheduler/cluster/StandaloneSchedulerBackend.scala
 ---
    @@ -100,7 +100,7 @@ private[spark] class StandaloneSchedulerBackend(
         val sparkJavaOpts = Utils.sparkJavaOpts(conf, 
SparkConf.isExecutorStartupConf)
         val javaOpts = sparkJavaOpts ++ extraJavaOpts
         val command = 
Command("org.apache.spark.executor.CoarseGrainedExecutorBackend",
    -      args, sc.executorEnvs, classPathEntries ++ testingClassPath, 
libraryPathEntries, javaOpts)
    +      args, sc.executorEnvs, classPathEntries ++ testingClassPath, 
libraryPathEntries, 
javaOpts.filterNot(_.startsWith("-Dspark.ssl.keyStorePassword")).filterNot(_.startsWith("-Dspark.ssl.keyPassword")))
    --- End diff --
    
    If you really have to do this, I'd have:
    ```
    javaOpts.filterNot { opt =>
        opt.startsWith("-Dspark.ssl.keyStorePassword") || 
opt.startsWith("-Dspark.ssl.keyPassword")
    }
    ```


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