[antlr-interest] (no subject)

[Ron Burk]

Possibly the problem is easier to spot if you formatted like this:

 common_param
         :      ( 'gender=' VAL )
         |      ( 'race=' VAL )
         |      ( 'name=' VAL )
         |      ( 'age=' VAL )    New_Line+
         ;

so it's obvious then that common_param has 4 productions,
only one of which can end in a newline.