Description
Use the error class when getting a non-existing SQL config. Currently the error message is not user-friendly:
spark.conf.get("some.conf")
java.util.NoSuchElementException: some.conf
at org.apache.spark.sql.errors.QueryExecutionErrors$.noSuchElementExceptionError(QueryExecutionErrors.scala:2154)
at org.apache.spark.sql.internal.SQLConf.$anonfun$getConfString$3(SQLConf.scala:4947)
...