Deserialisation issue - java.io.StreamCorruptedException: invalid type code: 00

Question

I\'m writing a java file-transfer app, and i have some troubles with deserialisation myself-defined class Message from Datagramms.

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Answer 1

Are you sure you have received all of the bytes for the serialized objects? A DatagramSocket uses UDP under the hood. Are you sure that all of the packets have arrived?

Also, is it really a good idea to use UDP for transferring a serialized object? This is one case where TCP would seem to be more approriate. UDP does not guarantee delivery or delivery order which could easily cause a corrupted stream.

You should also really put a private static final long serialVersionUID = 1L; on your Message class.