if (nphosts == null) {
nprop.hostsSource = null;
nprop.hostsPool = null;
} else {
if (!nphosts.equals(nprop.hostsSource)) {
RegexpPool pool = new RegexpPool();
StringTokenizer st = new StringTokenizer(nphosts, "|", false);
try {
while (st.hasMoreTokens()) {
pool.add(st.nextToken().toLowerCase(), Boolean.TRUE);
}
} catch (sun.misc.REException ex) {
}
nprop.hostsPool = pool;
nprop.hostsSource = nphosts;