--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/demo/share/jfc/J2Ddemo/java2d/DemoImages.java	Mon May 14 08:58:32 2018 -0700
@@ -0,0 +1,105 @@
+/*
+ *
+ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package java2d;
+
+
+import java.awt.Component;
+import java.awt.Image;
+import java.awt.MediaTracker;
+import java.net.URL;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+
+/**
+ * A collection of all the demo images found in the images directory.
+ * Certain classes are preloaded; the rest are loaded lazily.
+ */
+@SuppressWarnings("serial")
+public class DemoImages extends Component {
+
+    private static final String[] names = {
+        "bld.jpg", "boat.png", "box.png",
+        "boxwave.png", "clouds.jpg", "duke.gif", "duke.running.gif",
+        "dukeplug.png", "fight.png", "globe.png",
+        "jumptojavastrip.png", "magnify.png", "painting.png",
+        "remove.gif", "snooze.png", "star7.gif", "surfing.png",
+        "thumbsup.png", "tip.png", "duke.png", "print.gif",
+        "loop.gif", "looping.gif", "start.gif", "start2.gif",
+        "stop.gif", "stop2.gif", "clone.gif"
+    };
+    private static final Map<String, Image> cache =
+            new ConcurrentHashMap<String, Image>(names.length);
+
+    private DemoImages() {
+    }
+
+    public static void newDemoImages() {
+        DemoImages demoImages = new DemoImages();
+        for (String name : names) {
+            cache.put(name, getImage(name, demoImages));
+        }
+    }
+
+
+    /*
+     * Gets the named image using the toolkit of the specified component.
+     * Note that this has to work even before we have had a chance to
+     * instantiate DemoImages and preload the cache.
+     */
+    public static Image getImage(String name, Component cmp) {
+        Image img = null;
+        if (cache != null) {
+            if ((img = cache.get(name)) != null) {
+                return img;
+            }
+        }
+
+        ClassLoader cl = cmp.getClass().getClassLoader();
+        URL fileLoc = cl.getResource("images/" + name);
+        img = cmp.getToolkit().getImage(fileLoc);
+
+        MediaTracker tracker = new MediaTracker(cmp);
+        tracker.addImage(img, 0);
+        try {
+            tracker.waitForID(0);
+            if (tracker.isErrorAny()) {
+                System.out.println("Error loading image " + name);
+            }
+        } catch (Exception ex) {
+            Logger.getLogger(DemoImages.class.getName()).log(Level.SEVERE, null, ex);
+        }
+        return img;
+    }
+}