Question

I’m trying to send java bean instances over a network stream. I want to marshal/unmarshal java instances with JAXB and a normal OutputStream to push it over the network.

The servers wait at the unmarshal point but the client is already alot further.

Server:

inputStream = new BufferedInputStream(this.socket.getInputStream());
outputStream = new BufferedOutputStream(this.socket.getOutputStream());
JAXBContext requestContext = JAXBContext.newInstance(this.requestClass);
Unmarshaller unmarshaller = requestContext.createUnmarshaller();
@SuppressWarnings("unchecked")
K request = (K) unmarshaller.unmarshal(inputStream); //blocks here
respond();

Client:

JAXBContext messageContext = JAXBContext.newInstance(message.getClass());
Marshaller marshaller = messageContext.createMarshaller();
out = new BufferedOutputStream(socket.getOutputStream());
marshaller.marshal(message, out);
out.flush();
waitForResponse();// blocks here

EDIT: I switched to a normal output stream but it still blocks. Do I have to send some special signal to tell JAXB to stop unmarshalling? If I close the client output stream the message arrives at the server side.

Answer 1

I switched to XMLEventWriter and XMLEventWriter and it works. I’ve got the feeling XMLStreamReader is buggy. It gets stuck on some skipSpaces() method. The code of XMLStreamReader looks as if it should return as soon as a end of document appears.