sb.append("\t\ttry {\n");
ArrayList<RsField> oFlds = tp.getOLFlds(flds);
int l = flds.length;
Set<Class> exsl = new HashSet<Class>();
for (int i = 0; i < l; i++) {
RsField fld = oFlds.get(i);
Method m = tp.getMethodLoadFromRs(fld);
Class[] exs = m.getExceptionTypes();
for (int j = exs.length - 1; j >= 0; j--)
exsl.add(exs[j]);