ApplicationManager.getApplication().invokeLater(new Runnable() {
@Override
public void run() {
IdeFrame frame = WindowManager.getInstance().getIdeFrame(project);
StatusBar statusBar = frame.getStatusBar();
StatusBarWidget widget = statusBar != null ? statusBar.getWidget("LineSeparator") : null;
if (widget instanceof LineSeparatorPanel) {
FileEditorManagerEvent event = new FileEditorManagerEvent(FileEditorManager.getInstance(project),
null, null, null, null);
((LineSeparatorPanel)widget).selectionChanged(event);