src/share/classes/javax/swing/plaf/synth/Region.java

@@ -425,10 +425,11 @@
      */
     public static final Region VIEWPORT = new Region("Viewport", false);
 
     private static Map<String, Region> getUItoRegionMap() {
         AppContext context = AppContext.getAppContext();
+        @SuppressWarnings("unchecked")
         Map<String, Region> map = (Map<String, Region>) context.get(UI_TO_REGION_MAP_KEY);
         if (map == null) {
             map = new HashMap<String, Region>();
             map.put("ArrowButtonUI", ARROW_BUTTON);
             map.put("ButtonUI", BUTTON);

@@ -480,10 +481,11 @@
         return map;
     }
 
     private static Map<Region, String> getLowerCaseNameMap() {
         AppContext context = AppContext.getAppContext();
+        @SuppressWarnings("unchecked")
         Map<Region, String> map = (Map<Region, String>) context.get(LOWER_CASE_NAME_MAP_KEY);
         if (map == null) {
             map = new HashMap<Region, String>();
             context.put(LOWER_CASE_NAME_MAP_KEY, map);
         }