if (from.length > 0 && startsWith(from, source, spos)) {
System.arraycopy(to, 0, buffer, spos, to.length);
count += to.length;
if (from.length > 0 && startsWith(from, source, spos)) {
System.arraycopy(to, 0, buffer, spos, to.length);
count += to.length;