Connection.close() may throw SqlException, but I have always assumed that it is safe to ignore any such exceptions (and I have never seen code that does not ignore them).

Normally I would write:

 try{
    connection.close();
 }catch(Exception e) {}

Or

 try{
    connection.close();
 }catch(Exception e) {
     logger.log(e.getMessage(), e); 
 }

The question is:

1. Is it bad practice (and has anyone had problems when ignoring such exeptions).
2. When Connection.close() does throw any exception.
3. If it is bad how should I handle the exception.

Comment:

I know that discarding exceptions is evil, but I'm reffering only to exceptions thrown when closing a connection (and as I've seen this is fairly common in this case).

Does anyone know when Connection.close() may throw anything?