final ImportXMLAction staticThis = this;
Thread importThread = new Thread() {
public void run() {
try {
BufferedReader reader = new BufferedReader( new FileReader( f ) );
XmlImporter importer = new XmlImporter( reader );
importer.addListener( staticThis );
importer.importData();
reader.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}