Lost Object[] data after serialization

Question

Hi all,
I posted this problem already in the servlet forum, but now I found out that it's more a serialization problem. I hope you guys can help me!!!!
I have a problem sending a serialized object from a java application to a servlet (inside Tomcat).
I'm using Commons HttpClient's PostMethod to get a connection to the servlet over https. The encryption should be done automatically within HttpClient and Tomcat.
The object container I'm sending contains a few Strings and an Object[] that is filled with Strings.
The container i'm sending implements Serializable.
The connection is working fine, and the object has no serialization problems but the incoming request at server-side is kind of broken.... The single Strings are the same I've set on client-side, but the Object[] is null. I tried it with directly sending the ArrayList but with the same result.
The size of the incoming data stream is the same as it was on client side.
The funny thing is that sending data back from server to client works perfectly fine. My Object[] goes through without any problems!
Here is the client code I'm using:
PostMethod method = new PostMethod(mServerUrl);
MyContainer container = new MyContainer("Message2Server",new Object[]{"ArrayElement1"});
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
ObjectOutputStream serializer = new ObjectOutputStream(byteStream);
serializer.writeObject(container);
serializer.flush( );
serializer.close();
method.setRequestHeader("Content-Type","binary/x-java-serialized");
ByteArrayRequestEntity output = new ByteArrayRequestEntity(byteStream.toByteArray());
method.setRequestEntity(output);
mClient.executeMethod(method);...and here is the servlet code:
InputStream is = request.getInputStream();
ObjectInputStream ois = new ObjectInputStream(is);
MyContainer out = (MyContainer) ois.readObject();
out.getString1(); //<-- is OK!
out.getString2(); //<-- is OK!
out.getObjectArray(); //<-- is null!!!!!!
out.setObjectArray(new Object[]{"Message for the Client!!!"});
response.setContentType("binary/x-java-serialized");
// get output stream and send it back
OutputStream os = response.getOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(os);
oos.writeObject(out);
oos.flush();
oos.close();Does anybody see a solution????
I think it just could be two things:
- Serialization fails for any reason?!
- The Servlet InputStream fails?
Thanx for any help!
CU Jan

Answer 1

This looks very useful to me. Can you tell us what
the typo was?Considering he/she hasn't posted for 4 months, I'd doubt it.