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diff --git a/awt/java/awt/image/FilteredImageSource.java b/awt/java/awt/image/FilteredImageSource.java
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+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Igor V. Stolyarov
+ * @version $Revision$
+ */
+
+package java.awt.image;
+
+import java.util.Hashtable;
+
+/**
+ * The FilteredImageSource class is used for producing image data for a new
+ * filtered version of the original image using the specified filter object.
+ * 
+ * @since Android 1.0
+ */
+public class FilteredImageSource implements ImageProducer {
+
+    /**
+     * The source.
+     */
+    private final ImageProducer source;
+
+    /**
+     * The filter.
+     */
+    private final ImageFilter filter;
+
+    /**
+     * The cons table.
+     */
+    private final Hashtable<ImageConsumer, ImageConsumer> consTable = new Hashtable<ImageConsumer, ImageConsumer>();
+
+    /**
+     * Instantiates a new FilteredImageSource object with the specified
+     * ImageProducer and the ImageFilter objects.
+     * 
+     * @param orig
+     *            the specified ImageProducer.
+     * @param imgf
+     *            the specified ImageFilter.
+     */
+    public FilteredImageSource(ImageProducer orig, ImageFilter imgf) {
+        source = orig;
+        filter = imgf;
+    }
+
+    public synchronized boolean isConsumer(ImageConsumer ic) {
+        if (ic != null) {
+            return consTable.containsKey(ic);
+        }
+        return false;
+    }
+
+    public void startProduction(ImageConsumer ic) {
+        addConsumer(ic);
+        ImageConsumer fic = consTable.get(ic);
+        source.startProduction(fic);
+    }
+
+    public void requestTopDownLeftRightResend(ImageConsumer ic) {
+        if (ic != null && isConsumer(ic)) {
+            ImageFilter fic = (ImageFilter)consTable.get(ic);
+            fic.resendTopDownLeftRight(source);
+        }
+    }
+
+    public synchronized void removeConsumer(ImageConsumer ic) {
+        if (ic != null && isConsumer(ic)) {
+            ImageConsumer fic = consTable.get(ic);
+            source.removeConsumer(fic);
+            consTable.remove(ic);
+        }
+    }
+
+    public synchronized void addConsumer(ImageConsumer ic) {
+        if (ic != null && !isConsumer(ic)) {
+            ImageConsumer fic = filter.getFilterInstance(ic);
+            source.addConsumer(fic);
+            consTable.put(ic, fic);
+        }
+    }
+}