public void actionPerformed(ActionEvent e) {
ZooInspectorNodeViewersDialog.this.dispose();
DefaultListModel listModel = (DefaultListModel) viewersList
.getModel();
newViewers.clear();
Object[] modelContents = listModel.toArray();
for (Object o : modelContents) {
newViewers.add((ZooInspectorNodeViewer) o);
}
currentViewers.clear();
currentViewers.addAll(newViewers);