--- /dev/null	2020-01-31 00:25:56.000000000 -0800
+++ new/test/jdk/java/awt/FileDialog/ImageOperations.java	2020-01-31 00:25:56.000000000 -0800
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2020, 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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.AlphaComposite;
+import java.awt.Color;
+import java.awt.Dialog;
+import java.awt.FileDialog;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.awt.image.ImageObserver;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import static java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE;
+
+/**
+ * @test
+ * @key headful
+ * @bug 8238276
+ * @summary Verifies that create/prepare/checkImage work properly for FileDialog
+ */
+public final class ImageOperations {
+
+    public static void main(String[] args) throws Exception {
+        BufferedImage gold = new BufferedImage(255, 255, TYPE_INT_ARGB_PRE);
+        BufferedImage target = new BufferedImage(255, 255, TYPE_INT_ARGB_PRE);
+        fill(gold);
+
+        FileDialog fd = new FileDialog((Dialog) null);
+        fd.pack();
+        try {
+            Image image = fd.createImage(gold.getSource());
+            if (image == null) {
+                throw new NullPointerException();
+            }
+            if (!fd.prepareImage(image, null)) {
+                Thread.sleep(100);
+            }
+            if ((fd.checkImage(image, null) & ImageObserver.ALLBITS) == 0) {
+                throw new RuntimeException("Image should be loaded already");
+            }
+
+            Graphics2D graphics = (Graphics2D) target.getGraphics();
+            graphics.setComposite(AlphaComposite.Src);
+            graphics.drawImage(image, 0, 0, null);
+            graphics.dispose();
+
+            validate(gold, target);
+        } finally {
+            fd.dispose();
+        }
+    }
+
+    /**
+     * Fills the whole image using different alpha for each row.
+     *
+     * @param image to fill
+     */
+    private static void fill(Image image) {
+        Graphics2D graphics = (Graphics2D) image.getGraphics();
+        graphics.setComposite(AlphaComposite.Src);
+        graphics.setColor(Color.GREEN);
+        graphics.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
+        for (int i = 0; i < 255; ++i) {
+            graphics.setColor(new Color(23, 127, 200, i));
+            graphics.fillRect(0, i, image.getWidth(null), 1);
+        }
+        graphics.dispose();
+    }
+
+    private static void validate(BufferedImage bi, BufferedImage goldbi)
+            throws IOException {
+        for (int x = 0; x < bi.getWidth(); ++x) {
+            for (int y = 0; y < bi.getHeight(); ++y) {
+                if (goldbi.getRGB(x, y) != bi.getRGB(x, y)) {
+                    System.out.println("x = " + x);
+                    System.out.println("y = " + y);
+                    ImageIO.write(bi, "png", new File("actual.png"));
+                    ImageIO.write(goldbi, "png", new File("expected.png"));
+                    throw new RuntimeException("Test failed.");
+                }
+            }
+        }
+    }
+}