@Override
            public void contentsChanged(ListDataEvent e) {
                final HistoryElement item = myModel.getSelectedItem();
                if (item != null) {
                    myContextProvider.getNamespaceContext().setMap(asMap(item.namespaces));
                    if (myXPathFile != null) {
                      analyzer.restart(myXPathFile);
                    }
                }
            }
@Override
            public void contentsChanged(ListDataEvent e)