src/share/classes/java/awt/image/FilteredImageSource.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1995, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -66,11 +66,11 @@
     public FilteredImageSource(ImageProducer orig, ImageFilter imgf) {
         src = orig;
         filter = imgf;
     }
 
-    private Hashtable proxies;
+    private Hashtable<ImageConsumer, ImageFilter> proxies;
 
     /**
      * Adds the specified <code>ImageConsumer</code>
      * to the list of consumers interested in data for the filtered image.
      * An instance of the original <code>ImageFilter</code>

@@ -92,11 +92,11 @@
      * @param ic  the consumer for the filtered image
      * @see ImageConsumer
      */
     public synchronized void addConsumer(ImageConsumer ic) {
         if (proxies == null) {
-            proxies = new Hashtable();
+            proxies = new Hashtable<>();
         }
         if (!proxies.containsKey(ic)) {
             ImageFilter imgf = filter.getFilterInstance(ic);
             proxies.put(ic, imgf);
             src.addConsumer(imgf);

@@ -135,11 +135,11 @@
      *
      * @see ImageConsumer
      */
     public synchronized void removeConsumer(ImageConsumer ic) {
         if (proxies != null) {
-            ImageFilter imgf = (ImageFilter) proxies.get(ic);
+            ImageFilter imgf =  proxies.get(ic);
             if (imgf != null) {
                 src.removeConsumer(imgf);
                 proxies.remove(ic);
                 if (proxies.isEmpty()) {
                     proxies = null;

@@ -171,13 +171,13 @@
      * @param ic  the consumer for the filtered image
      * @see ImageConsumer
      */
     public void startProduction(ImageConsumer ic) {
         if (proxies == null) {
-            proxies = new Hashtable();
+            proxies = new Hashtable<>();
         }
-        ImageFilter imgf = (ImageFilter) proxies.get(ic);
+        ImageFilter imgf = proxies.get(ic);
         if (imgf == null) {
             imgf = filter.getFilterInstance(ic);
             proxies.put(ic, imgf);
         }
         src.startProduction(imgf);

@@ -198,11 +198,11 @@
      *
      * @see ImageConsumer
      */
     public void requestTopDownLeftRightResend(ImageConsumer ic) {
         if (proxies != null) {
-            ImageFilter imgf = (ImageFilter) proxies.get(ic);
+            ImageFilter imgf = proxies.get(ic);
             if (imgf != null) {
                 imgf.resendTopDownLeftRight(src);
             }
         }
     }