Smack GUI debugger. Inspect the exchanged XMPP stanzas.
'org.igniterealtime.smack:smack-debug:4.1.6'
<dependency>
<groupId>org.igniterealtime.smack</groupId>
<artifactId>smack-debug</artifactId>
<version>4.1.6</version>
</dependency>
<dependency org="org.igniterealtime.smack" name="smack-debug" rev="4.1.6"/>
"org.igniterealtime.smack", "smack-debug", "4.1.6"