ZIPException Trying to send GZIP'd object via datagram

[mpo...@astro.umd.edu]

I'm trying to send a serialized object between hosts via
datagram. I get the following ZipException:
Exception: java.util.zip.ZipException: invalid stored block lengths
java.util.zip.ZipException: invalid stored block lengths
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java)
at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:88)
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java)
at java.io.ObjectInputStream.read(ObjectInputStream.java)
at java.io.DataInputStream.readShort(DataInputStream.java)
at java.io.ObjectInputStream.readShort(ObjectInputStream.java)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java)
at Receiver.recvObjFrom(Receiver.java:43)
at Sender.main(Sender.java:70)

Any help would be greatly appreciated!

Marc Pound
mpo...@astro.umd.edu
The relevent code on the sender side:
try {
byteStream = new ByteArrayOutputStream(BUFSIZE);
hostAddress =
InetAddress.getByName(hostName);
gzo=new GZIPOutputStream(byteStream);
os = new ObjectOutputStream(gzo);
os.writeObject(o);
os.flush();
dsock = new DatagramSocket(desPort,hostAddress);
DatagramPacket packet = new DatagramPacket(
sendBuf, sendBuf.length, hostAddress, desPort);
dsock.send(packet);
os.close();
} catch(Exception e) {
e.printStackTrace();
System.exit(0);
}

On the receiver side:
try {
recvBuf = new byte[BUFSIZE];
packet = new DatagramPacket(recvBuf, recvBuf.length);
byteStream = new ByteArrayInputStream(recvBuf);
gzi = new GZIPInputStream(byteStream);
is = new ObjectInputStream(gzi);
Object o = is.readObject();
is.close();
} catch (Exception e)
{
System.err.println("Exception: " + e);
e.printStackTrace();
}

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