import jalview.ws.ServiceChangeListener;
import jalview.ws.WSDiscovererI;
import jalview.ws.api.ServiceWithParameters;
-import java.beans.PropertyChangeListener;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
-import java.util.concurrent.FutureTask;
-
import uk.ac.dundee.compbio.slivkaclient.SlivkaClient;
import uk.ac.dundee.compbio.slivkaclient.SlivkaService;