stunexception

Hi, I keep getting the same error when i try to implement stun4j into my
sip client application. The error im getting is a stunexception.

2006-apr-19 11:13:19 net.java.stun4j.stack.NetAccessManager handleError
VARNING: The following error occurred
net.java.stun4j.StunException: The given binary array does not seem to
contain a
 whole StunMessage
        at net.java.stun4j.message.Message.decode(Message.java:477)
        at
net.java.stun4j.stack.MessageProcessor.run(MessageProcessor.java:82)
        at java.lang.Thread.run(Unknown Source)

Does anyone have any idea of what this means?

Best regards

Charbel