@Override
public void readExternal(ObjectInput in) throws IOException {
Bytes b = (Bytes) in;
this.x = b.readStopBit();
if (this.y == null) this.y = new StringBuilder();
b.readUTFΔ(this.y);
}
public C read(Bytes bytes, @Nullable C c) {
long length = bytes.readStopBit();
if (length == 0 && c != null) {
c.clear();
return c;
}
if (length < NULL_LENGTH || length > Integer.MAX_VALUE)
throw new IllegalStateException("Invalid length: " + length);
if (length == NULL_LENGTH) return null;
if (c == null) c = newCollection();
return readCollection(bytes, c, (int) length);
}