import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
-import java.util.Collection;
import java.util.Enumeration;
import java.util.HashMap;
-import java.util.HashSet;
import java.util.Hashtable;
import java.util.List;
-import java.util.Map;
-import java.util.Set;
import java.util.StringTokenizer;
-import java.util.Vector;
-import javax.swing.JOptionPane;
-
-import org.apache.http.auth.InvalidCredentialsException;
import org.biodas.jdas.client.ConnectionPropertyProviderI;
import org.biodas.jdas.client.SourcesClient;
import org.biodas.jdas.client.threads.MultipleConnectionPropertyProviderI;