The current code would work just fine for a connection having
multiple endpoints. However, when there is only one endpoint
ConnectionAttemptState.nextAddress() would return null, since
connectionEndpointIterator has already iterated over the only
possible value in the contructor leading to a NullPointerException.
This means that during establishment of a connection having multiple
endpoints, the first value inside connectionEndpointIterator would
always be overlooked.
This continues the design started with e98d42790 ("SmackReactor/NIO,
Java8/Android19, Pretty print XML, FSM connections"), where the
exceptions that caused an operation to fail, are not recorded within
SynchronizationPoint but within the connection instance itself.
This is a complete redesign of what was previously
XmppNioTcpConnection. The new architecture allows to extend an XMPP
client to server (c2s) connection with new transport bindings and
other extensions.
Aditya Borikar
Florian Schmaus