Program: 94809
Project: 94809
Buggy source:
/** 
 * @param presenceContainerAdapter
 */
private void openContainer(IContainer container){
  IPresenceContainerAdapter presenceContainerAdapter=(IPresenceContainerAdapter)container.getAdapter(IPresenceContainerAdapter.class);
  IChatManager chatManager=presenceContainerAdapter.getChatManager();
  IRosterManager rosterManager=presenceContainerAdapter.getRosterManager();
  if (chatManager != null && rosterManager != null) {
    try {
      XMPPID localID=(XMPPID)rosterManager.getRoster().getUser().getID();
      Namespace ns=container.getConnectNamespace();
      XMPPID targetID=(isXMPPS) ? new XMPPSID(ns,getURI().getAuthority()) : new XMPPID(ns,getURI().getAuthority());
      if (localID.equals(targetID)) {
        MessageDialog.openError(null,Messages.XMPPHyperlink_MESSAGING_ERROR_TITLE,Messages.XMPPHyperlink_MESSAGING_ERROR_MESSAGE);
        return;
      }
 else {
        String localHost=localID.getHostname();
        String targetHost=targetID.getHostname();
        if (localHost.equals(targetHost)) {
          openMessagesView(chatManager,localID,targetID);
        }
 else {
          MessageDialog messageDialog=new MessageDialog(null,Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_TITLE,null,NLS.bind(Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_MESSAGE,new Object[]{targetHost,localHost,targetID.getName(),localID.getName()}),MessageDialog.QUESTION,new String[]{Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_BUTTON_SEND_MESSAGE,Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_BUTTON_CONNECT,Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_BUTTON_CANCEL},2);
          int selected=messageDialog.open();
switch (selected) {
case 0:
            openMessagesView(chatManager,localID,targetID);
          return;
case 1:
        super.open();
      return;
default :
    return;
}
}
}
}
 catch (Exception e) {
MessageDialog.openError(null,Messages.XMPPHyperlink_ERROR_OPEN_MESSAGE_VIEW_DIALOG_TITLE,NLS.bind(Messages.XMPPHyperlink_ERROR_OPEN_MESSAGE_VIEW_DIALOG_MESSAGE,e.getLocalizedMessage()));
Activator.getDefault().getLog().log(new Status(IStatus.ERROR,Activator.PLUGIN_ID,IStatus.ERROR,Messages.XMPPHyperlink_ERROR_OPEN_MESSAGE_VIEW_LOG_STATUS_MESSAGE,e));
}
}
}

Fixed version (ground truth):
/** 
 * @param presenceContainerAdapter
 */
private void openContainer(IContainer container){
  final IPresenceContainerAdapter presenceContainerAdapter=(IPresenceContainerAdapter)container.getAdapter(IPresenceContainerAdapter.class);
  final IChatManager chatManager=presenceContainerAdapter.getChatManager();
  final IRosterManager rosterManager=presenceContainerAdapter.getRosterManager();
  if (chatManager != null && rosterManager != null) {
    try {
      final XMPPID localID=(XMPPID)rosterManager.getRoster().getUser().getID();
      final Namespace ns=container.getConnectNamespace();
      final XMPPID targetID=(isXMPPS) ? new XMPPSID(ns,getURI().getAuthority()) : new XMPPID(ns,getURI().getAuthority());
      if (localID.equals(targetID)) {
        MessageDialog.openError(null,Messages.XMPPHyperlink_MESSAGING_ERROR_TITLE,Messages.XMPPHyperlink_MESSAGING_ERROR_MESSAGE);
        return;
      }
 else {
        final String localHost=localID.getHostname();
        final String targetHost=targetID.getHostname();
        if (localHost.equals(targetHost)) {
          openMessagesView(chatManager,localID,targetID);
        }
 else {
          final MessageDialog messageDialog=new MessageDialog(null,Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_TITLE,null,NLS.bind(Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_MESSAGE,new Object[]{targetHost,localHost,targetID.getName(),localID.getName()}),MessageDialog.QUESTION,new String[]{Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_BUTTON_SEND_MESSAGE,Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_BUTTON_CONNECT,Messages.XMPPHyperlink_SELECT_ACTION_DIALOG_BUTTON_CANCEL},2);
          final int selected=messageDialog.open();
switch (selected) {
case 0:
            openMessagesView(chatManager,localID,targetID);
          return;
case 1:
        super.open();
      return;
default :
    return;
}
}
}
}
 catch (final Exception e) {
MessageDialog.openError(null,Messages.XMPPHyperlink_ERROR_OPEN_MESSAGE_VIEW_DIALOG_TITLE,NLS.bind(Messages.XMPPHyperlink_ERROR_OPEN_MESSAGE_VIEW_DIALOG_MESSAGE,e.getLocalizedMessage()));
Activator.getDefault().getLog().log(new Status(IStatus.ERROR,Activator.PLUGIN_ID,IStatus.ERROR,Messages.XMPPHyperlink_ERROR_OPEN_MESSAGE_VIEW_LOG_STATUS_MESSAGE,e));
}
}
}