org.jivesoftware.smackx.ServiceDiscoveryManager org.jivesoftware.smack.PrivacyListManager org.jivesoftware.smackx.XHTMLManager org.jivesoftware.smackx.muc.MultiUserChat org.jivesoftware.smackx.filetransfer.FileTransferManager org.jivesoftware.smackx.LastActivityManager org.jivesoftware.smack.ReconnectionManager 5000 30000