1f0de3c1c8
## What changes were proposed in this pull request? Avoid `NoSuchElementException` every time `ConfigProvider.get(val, default)` falls back to default. This apparently causes non-trivial overhead in at least one path, and can easily be avoided. See https://github.com/apache/spark/pull/17329 ## How was this patch tested? Existing tests Author: Sean Owen <sowen@cloudera.com> Closes #17567 from srowen/SPARK-19991. |
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