src/share/classes/javax/swing/DebugGraphics.java

@@ -1461,9 +1461,7 @@
             SwingUtilities.appContextPut(debugGraphicsInfoKey,
                                          debugGraphicsInfo);
         }
         return debugGraphicsInfo;
     }
-    private static final Class debugGraphicsInfoKey = DebugGraphicsInfo.class;
-
-
+    private static final Class<DebugGraphicsInfo> debugGraphicsInfoKey = DebugGraphicsInfo.class;
 }