src/share/classes/javax/swing/plaf/basic/BasicComboBoxRenderer.java

@@ -47,11 +47,11 @@
  *
  * @author Arnaud Weber
  */
 @SuppressWarnings("serial") // Same-version serialization only
 public class BasicComboBoxRenderer extends JLabel
-implements ListCellRenderer, Serializable {
+implements ListCellRenderer<Object>, Serializable {
 
    /**
     * An empty <code>Border</code>. This field might not be used. To change the
     * <code>Border</code> used by this renderer directly set it using
     * the <code>setBorder</code> method.

@@ -87,11 +87,11 @@
 
         return size;
     }
 
     public Component getListCellRendererComponent(
-                                                 JList list,
+                                                 JList<? extends Object> list,
                                                  Object value,
                                                  int index,
                                                  boolean isSelected,
                                                  boolean cellHasFocus)
     {