log.warn("db handle not found in Usage map: " + db);
if (log!=null) log.warn("db handle not found in Usage map: " + db);
    private int useDbHandle(isc_db_handle db, int inc) {        synchronized(dbHandleUsage) {            Integer i = (Integer)dbHandleUsage.get(db);            if (i == null) {                log.warn("db handle not found in Usage map: " + db);                return 1;            }            int count = ((Integer)dbHandleUsage.get(db)).intValue();            dbHandleUsage.put(db, new Integer(count + inc));            return count + inc;        }    }