Github user djvulee commented on the issue:
https://github.com/apache/spark/pull/16210
@srowen Sorry for late reply and thanks for your reproduce!
As I have mentioned in last reply, this is not a environment problem, but
a misunderstand of SPARK_SUBMIT_OPTS by ourself, or a deployment problem. This
works for anyone because few people use the ```SPARK_SUBMIT_OPTS``` option and
do not put ```SPARK_SUBMIT_OPTS``` in the spark-env.sh file.
It maybe better to separate the ```Dscala.usejavacp=true``` from the
```SPARK_SUBMIT_OPTS``` in the spark-shell file to avoid the misunderstanding.
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