response.setReturnCode(message.getReturnCode());

            if (message.isSuccess()) {
                // Generate registration ID from context handle
                byte[] contextHandle = message.getContextHandle();
                String registrationId = generateRegistrationId(contextHandle, request.getShareName());
                response.setRegistrationId(registrationId);
                response.setContextHandle(contextHandle);

                if (response != null && response.isSuccess()) {
                    registration.setState(WitnessRegistrationState.REGISTERED);
                    registration.setContextHandle(response.getContextHandle());
                    registrations.put(registration.getRegistrationId(), registration);
                    listeners.put(registration.getRegistrationId(), listener);

        this.contextHandle = contextHandle != null ? contextHandle.clone() : null;
    }

    /**
     * Gets the context handle.
     *
     * @return the context handle
     */
    public byte[] getContextHandle() {
        return contextHandle != null ? contextHandle.clone() : null;
    }

    /**
     * Gets the list of notifications received.
     *
     * @return the list of notifications
     */