Some failures from Spark and SparkSql note execution are not reported

Some spark and spark sql note execution can silently fail - the result progress line is drawn but no results are returned. For example, run the tutorial sql script with a typo in it, such as changing the table name to non_existent.

The root cause seems to be the following pattern:

return new InterpreterResult(Code.ERROR, e.getMessage());

Unfortunately, when the Spark framework throws an InvocationTargetException, the message is empty.

I will provide a patch for this shortly.