Right now, if you query a non-jabber client for last activity, we get a class cast exception. This should be handled more gracefully.
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: org.jivesoftware.smack.PacketReader$4
at org.jivesoftware.smackx.packet.LastActivity.getLastActivity(LastActivity.java:145)
at org.jivesoftware.spark.ui.ContactList$15.actionPerformed(ContactList.java:1377)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
some how i dont see "Last activity" entry in context menu anymore since 2.5.0 and maybe 2.5.0 Beta 4