Scalastyle standard configuration ^[a-z]+(([0-9])|([A-Z0-9][a-z0-9]+))*([A-Z])?$ ^$ COMMA ARROW, EQUALS, COMMA, COLON, IF, ELSE, DO, WHILE, FOR, MATCH, TRY, CATCH, FINALLY, LARROW, RARROW ARROW, EQUALS, ELSE, TRY, CATCH, FINALLY, LARROW, RARROW ^[a-z]+(([0-9])|([A-Z0-9][a-z0-9]+))*([A-Z])?$ ^[A-Za-z]?[a-z]+(([0-9])|([A-Z0-9][a-z0-9]+))*([A-Z])?$ \)\{ \w\{ case[^\n>]*=>\s*\{ Omit braces in case clauses. usage of org.apache.spark.sql.Dataset.printSchema usage of org.apache.spark.sql.Dataset.show