* @throws IOException if any I/O error occurred during remote method call
*/
public void processCall(RemoteCall call) throws IOException {
// read method and parameters
RMIObjectInputStream oin = (RMIObjectInputStream) call.getInputStream();
int op = oin.readInt(); // read operation
long h = oin.readLong(); // read method hash
if (op != -1) {
// Using 1.1. RMI protocol version
if (skel == null) {