Very similar issue to IllegalArgumentException for wrong custom host
I use latest Smack-4.2-RC1-SNAPSHOT on Android.
I build connection using setXmppDomain and then call “connect”. If I set nonexistent domain (e.g. wrong user input) I get IllegalArgumentException:
java.lang.IllegalArgumentException: Must provide at least one InetAddress
at org.jivesoftware.smack.util.dns.HostAddress.(HostAddress.java:55)
at org.jivesoftware.smack.util.dns.DNSResolver.lookupHostAddress(DNSResolver.java: 56)
at org.jivesoftware.smack.util.DNSUtil.resolveDomain(DNSUtil.java:209)
at org.jivesoftware.smack.util.DNSUtil.resolveXMPPServiceDomain(DNSUtil.java:136)
at org.jivesoftware.smack.AbstractXMPPConnection.populateHostAddresses(AbstractXMP PConnection.java:626)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectUsingConfiguration(XMPPTCPC onnection.java:556)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection. java:888)
at org.jivesoftware.smack.AbstractXMPPConnection.connect(AbstractXMPPConnection.ja va:377)