Github user fangshil commented on the issue:
https://github.com/apache/spark/pull/21276
made a few changes:
since getSimpleName is a method of Class, it makes sense for
Utils.getSimpleName to takes a Class param
Utils.getSimpleName will try to use the Class's getSimpleName first, and
only use the alternative if the internal error is caught. This should minimize
the potential impact of this patch
updated a few other places where similar issue may happen
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