Topic subscribers are not working when using mqtt+nio+ssl transport

Solution Verified - Updated -


We configure JBoss A-MQ to use the MQTT transport over SSL with NIO (mqtt+ssl+nio transport) as described in

However, when enabling NIO, topic subscribers stop working.
Published messages are not received by a subscribed client.
The broker appears to be hung.

The same test passes when using the mqtt+ssl transport (no nio).


  • JBoss A-MQ 6.1
  • JBoss Fuse 6.1

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