Reproducable

1. Configure Plugin on /admin/plugins/impresence2/gtalk/config.action

Current ID: <GTALKID>
Current Password: <GTALKPASSWORD>

gtalk ID is working fine with other IM client - checked

2. use on any confluence page the plugin

and view page

3. result in UI: show only the mail address, but status isn't update (because authentification failure, see 4.)

4. result in logfile

SASL authentication failed:
at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentication.java:205)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:426)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:389)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:370)
at com.atlassian.confluence.extra.impresence2.GtalkPresenceReporter.createConnection(GtalkPresenceReporter.java:173)
at com.atlassian.confluence.extra.impresence2.GtalkPresenceReporter.getPresenceXHTML(GtalkPresenceReporter.java:90)
at com.atlassian.confluence.extra.impresence2.AbstractPresenceMacro.execute(AbstractPresenceMacro.java:73)
at com.atlassian.renderer.v2.macro.ResourceAwareMacroDecorator.execute(ResourceAwareMacroDecorator.java:45)
at com.atlassian.renderer.v2.components.MacroRendererComponent.processMacro(MacroRendererComponent.java:340)
at com.atlassian.renderer.v2.components.MacroRendererComponent.makeMacro(MacroRendererComponent.java:241)
at com.atlassian.renderer.v2.components.MacroRendererComponent.makeMacro(MacroRendererComponent.java:130)
at com.atlassian.renderer.v2.components.MacroRendererComponent.handlePotentialMacro(MacroRendererComponent.java:115)
at com.atlassian.renderer.v2.components.MacroRendererComponent.render(MacroRendererComponent.java:77)
at com.atlassian.renderer.v2.V2Renderer.render(V2Renderer.java:54)
at com.atlassian.renderer.v2.V2RendererFacade.convertWikiToXHtml(V2RendererFacade.java:57)