if (froms[i] != null && froms[i].length > 0
&& StreamUtils.startsWith(froms[i], source, spos, slen)) {
if (tos[i] != null && tos[i].length > 0) {
if (froms[i] != null && froms[i].length > 0
&& StreamUtils.startsWith(froms[i], source, spos, slen)) {
if (tos[i] != null && tos[i].length > 0) {