import java.awt.event.MouseEvent;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.util.Arrays;
import java.util.Collections;
<BUG>import java.util.List;
import java.util.logging.Logger;</BUG>
import java.util.prefs.Preferences;
import javax.swing.DefaultListSelectionModel;
import javax.swing.Icon;

import java.awt.event.MouseEvent;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.prefs.Preferences;
import javax.swing.DefaultListSelectionModel;
import javax.swing.Icon;
