private void writeObject(ObjectOutputStream out) throws IOException {
        VendorExtensionUtils.writeObject(out, vendorDataSerializationEnabled ? vendorData : null);
    }
private void writeObject(ObjectOutputStream out) throws IOException {
        VendorExtensionUtils.writeObject(out, vendorDataSerializationEnabled ? vendorData : null);
    }
private void writeObject ( ObjectOutputStream out ) throws IOException { VendorExtensionUtils . writeObject ( out , vendorDataSerializationEnabled ? vendorData : null ) ; }
special handling of serialization
special handling of serialization