Remove warnings in performtab

Change-Id: Ie851293569729cbeea29c733d5f7b6d352377f87
Reviewed-on: http://gerrit.dmdirc.com/3139
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

src/com/dmdirc/addons/ui_swing/components/renderers/PerformRenderer.java

 
 import com.dmdirc.actions.wrappers.PerformWrapper.PerformDescription;
 
-
 import javax.swing.JLabel;
 import javax.swing.ListCellRenderer;
 
  *
  * @since 0.6.4
  */
-public class PerformRenderer extends DMDircListCellRenderer {
+public class PerformRenderer extends DMDircListCellRenderer<PerformDescription> {
 
-    /**
-     * A version number for this class.
-     */
+    /** A version number for this class. */
     private static final long serialVersionUID = 1;
 
     /**
      *
      * @param renderer RendereParent renderer
      */
-    public PerformRenderer(final ListCellRenderer renderer) {
+    public PerformRenderer(final ListCellRenderer<? super PerformDescription> renderer) {
         super(renderer);
     }
 
-    /** {@inheritDoc} */
     @Override
     protected void renderValue(final JLabel label, final Object value,
             final int index, final boolean isSelected,

src/com/dmdirc/addons/ui_swing/dialogs/serversetting/PerformTab.java

     /** Perform wrapper to read/write performs to. */
     private final PerformWrapper wrapper;
     /** Network/server combo box. */
-    private JComboBox target;
+    private JComboBox<PerformDescription> target;
     /** Perform panel. */
     private PerformPanel performPanel;
 
             final AggregateConfigProvider config) {
         setLayout(new MigLayout("fill"));
 
-        final DefaultComboBoxModel model = new DefaultComboBoxModel();
-        target = new JComboBox(model);
+        final DefaultComboBoxModel<PerformDescription> model = new DefaultComboBoxModel<>();
+        target = new JComboBox<>(model);
 
         add(target, "growx, pushx, wrap");