spark git commit: [SPARK-11872] Prevent the call to SparkContext#stop() in the listener bus's thread

Repository: spark Updated Branches: refs/heads/master 19530da69 -> 81012546e [SPARK-11872] Prevent the call to SparkContext#stop() in the listener bus's thread This is continuation of SPARK-11761 Andrew suggested adding this protection. See tail of https://github.com/apache/spark/pull/9741

spark git commit: [SPARK-11872] Prevent the call to SparkContext#stop() in the listener bus's thread

Repository: spark Updated Branches: refs/heads/branch-1.6 927070d6d -> 0419fd361 [SPARK-11872] Prevent the call to SparkContext#stop() in the listener bus's thread This is continuation of SPARK-11761 Andrew suggested adding this protection. See tail of https://github.com/apache/spark/pull/9