public void updateLists(List<? extends ChangeList> lists) {
   //noinspection unchecked
   myChooser.setModel(new DefaultComboBoxModel(lists.toArray()));
   myChooser.setEnabled(lists.size() > 1);
   if (lists.contains(mySelectedChangeList)) {
     myChooser.setSelectedItem(mySelectedChangeList);
   } else {
     if (myChooser.getItemCount() > 0) {
       myChooser.setSelectedIndex(0);
     }
   }
   mySelectedChangeList = (ChangeList) myChooser.getSelectedItem();
 }
 @NotNull
 JComponent createComponent() {
   myRemoteCombobox = new JComboBox();
   myRemoteCombobox.setRenderer(new RemoteCellRenderer(myRemoteCombobox.getRenderer()));
   for (GitRemote remote : myRemotes) {
     myRemoteCombobox.addItem(remote);
   }
   myRemoteCombobox.setToolTipText("Select remote");
   if (myRemotes.size() == 1) {
     myRemoteCombobox.setEnabled(false);
   }
   return myRemoteCombobox;
 }
 void setEnabled(boolean selected) {
   if (myRemotes.size() > 1) {
     myRemoteCombobox.setEnabled(selected);
   }
 }