Otto Fowler created METRON-1089:

             Summary: STELLAR Shell: Handle NoViableAltException with better 
                 Key: METRON-1089
             Project: Metron
          Issue Type: Improvement
            Reporter: Otto Fowler
            Assignee: Otto Fowler

Antlr's NoViableAltException is thrown when Antlr cannot figure out what to do 
when building the expression tree.  This happens when the grammar is improperly 

For example:

Where IN is a reserved phrase, but is not posed correctly.

This is basically an invalid syntax exception.  But buried in the cause of a 
ParseException, it really is not helpful.

The shell should find the ParseException cause, and if it is this exception, 
output a better message

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