final Container buttonPanel = new JPanel(btbl);
_baselinePanel.add(buttonPanel, "3, 1, 3, 1");
final AbstractButton addButton = new JButton();
final Action action = new BrowseAction(_parent, "Add...", new ExtensionFileFilter(FindBugsUtil.XML_EXTENSIONS_SET), new BrowseActionCallback() {
@Override
public void addSelection(final File selectedFile) {
final String replacement = IdeaUtilImpl.collapsePathMacro(_parent.getProject(), selectedFile.getAbsolutePath());
//noinspection unchecked
((DefaultListModel) _baselineList.getModel()).addElement(replacement);