notes/technology

Openfire with Smack disconnects with error : You acknowledged stanzas that we didn’t send

Posted on by Sreekumar Kj

Problem: After connecting, openfire servers disconnects from Smack client giving an exception as below –

Connection XMPPTCPConnection[dhee@dheeyantra.com/bot] (0) closed w
ith error

org.jivesoftware.smack.XMPPException$StreamErrorException: undefined-condition You can read more about the meaning of this stream error at http://xmpp.org/rfcs/rfc6120
.html#streams-error-conditions
<stream:error><undefined-condition xmlns='urn:ietf:params:xml:ns:xmpp-streams'/><text>You acknowledged stanzas that we didn&apos;t send. Your Ack h: 11, our last stanz
a: 10</text></stream:error>
 at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.parsePackets(XMPPTCPConnection.java:1057) [smack-tcp-4.3.0.jar:4.3.0]

Fix:

  1. In Openfire admin too, go to Server Manager => Server Properties
  2. Set stream.management.active = false
,
Sreekumar Kj
Sreekumar (KJ) has been a hobby programmer from school days. Codemarvels is his personal blog from the year 2010, where he writes about technology, philosophy, society and a bit about physics. He now runs a conversational AI company - DheeYantra - focusing his efforts to help businesses improve operational efficiency using digital employees powered by AI.