org.jivesoftware.smack.initializer.VmArgInitializer org.jivesoftware.smack.ReconnectionManager org.jivesoftware.smack.util.dns.javax.JavaxResolver org.jivesoftware.smack.initializer.extensions.ExtensionsInitializer org.jivesoftware.smack.initializer.experimental.ExperimentalInitializer org.jivesoftware.smack.initializer.legacy.LegacyInitializer