Fix suspicious get call + javadoc.

ui_swing/src/com/dmdirc/addons/ui_swing/dialogs/prefs/URLConfigPanel.java

@@ -234,7 +234,7 @@ public class URLConfigPanel extends JPanel implements
         if (e == null || !e.getValueIsAdjusting()) {
             setVisible(false);
             if (selectedRow != -1 && selectedRow < model.getRowCount()) {
-                final URLProtocolPanel panel = details.get(model.getValueAt(selectedRow, 0));
+                final URLProtocolPanel panel = details.get(model.getValue(selectedRow).getUri());
                 model.getValue(selectedRow).setHandler(panel.getSelection());
             }
             if (table.getSelectedRow() == -1) {

ui_swing/src/com/dmdirc/addons/ui_swing/dialogs/prefs/URLHandlerHolder.java

@@ -22,10 +22,13 @@
 
 package com.dmdirc.addons.ui_swing.dialogs.prefs;
 
+import com.dmdirc.ui.core.util.URLHandler;
+
 import java.net.URI;
 
 /**
- *
+ * Wrapper to hold the constituents of a {@link URLHandler} used to render an editable version in
+ * the UI.
  */
 public class URLHandlerHolder {