java.lang.ClassCastException: org.jivesoftware.smack.util.PacketParserUtils$2 cannot be cast to org.jivesoftware.smackx.vcardtemp.packet.VCard
at org.jivesoftware.smackx.vcardtemp.packet.VCard.doLoad(VCard.java:560)
at org.jivesoftware.smackx.vcardtemp.packet.VCard.load(VCard.java:542)
at hudson.plugins.jabber.im.transport.JabberIMConnection.vCardExists(JabberIMConnection.java:551)
at hudson.plugins.jabber.im.transport.JabberIMConnection.createVCardIfNeeded(JabberIMConnection.java:534)
at hudson.plugins.jabber.im.transport.JabberIMConnection.createConnection(JabberIMConnection.java:431)
at hudson.plugins.jabber.im.transport.JabberIMConnection.connect(JabberIMConnection.java:189)
at hudson.plugins.jabber.im.transport.JabberIMConnectionProvider.createConnection(JabberIMConnectionProvider.java:42)
at hudson.plugins.im.IMConnectionProvider.create(IMConnectionProvider.java:65)
at hudson.plugins.im.IMConnectionProvider.access$600(IMConnectionProvider.java:22)
at hudson.plugins.im.IMConnectionProvider$ConnectorRunnable.run(IMConnectionProvider.java:183)
at java.lang.Thread.run(Thread.java:745)