Null value for 'ticketId'

[Frank]

Hello,

I am trying to get a count of records from mysql.
I keep getting this error.

Null value for 'ticketId'. Snapshot: [EMAIL PROTECTED](*)=5}, 
version=-9223372036854775802, replaces=-9223372036854775808]. Prefix: null

here is my code:

     String sql = "SELECT COUNT(*) AS cnt FROM tickets";
     SQLTemplate query = new SQLTemplate(tickets.class, sql);
     List list = context.performQuery(query);
     Map row = (Map)list.get(0);
     String cnt = row.get("cnt").toString();


Thanks

Frank