--- /dev/null	2017-05-22 14:23:16.000000000 -0700
+++ new/test/javax/imageio/plugins/gif/LogicalScreenDimensionTest.java	2017-05-22 14:23:15.000000000 -0700
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2005, 2017, 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.
+ */
+
+/*
+ * @test
+ * @bug 6307618
+ * @summary Test verifies that GIF image writer updates the dimension of the
+ *          logical screen according to image dimension
+ * @modules java.desktop/com.sun.imageio.plugins.gif
+ */
+
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageIO;
+import javax.imageio.ImageReader;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.ImageWriter;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageInputStream;
+import javax.imageio.stream.ImageOutputStream;
+
+import com.sun.imageio.plugins.gif.GIFStreamMetadata;
+
+public class LogicalScreenDimensionTest {
+    public static void main(String[] args) throws IOException {
+        String format = "GIF";
+        ImageWriter writer =
+                ImageIO.getImageWritersByFormatName(format).next();
+        if (writer == null) {
+            throw new RuntimeException("No available writers for " + format);
+        }
+
+        BufferedImage img = createTestImage(100, 100, BufferedImage.TYPE_BYTE_GRAY);
+
+        ImageWriteParam p = writer.getDefaultWriteParam();
+        ImageTypeSpecifier type =
+            ImageTypeSpecifier.createFromRenderedImage(img);
+        IIOMetadata inImageMetadata =
+            writer.getDefaultImageMetadata(type, p);
+
+        IIOMetadata inStreamMetadata = writer.getDefaultStreamMetadata(p);
+
+        // write and read image
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+        ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
+        writer.setOutput(ios);
+
+        writer.write(inStreamMetadata, new IIOImage(img, null, inImageMetadata), p);
+
+        ios.flush();
+        ios.close();
+
+        // read result
+        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+        ImageInputStream iis = ImageIO.createImageInputStream(bais);
+        ImageReader reader = ImageIO.getImageReader(writer);
+        reader.setInput(iis);
+
+        IIOMetadata outStreamMetadata = reader.getStreamMetadata();
+
+        GIFStreamMetadata gifStreamMetadata = (GIFStreamMetadata)outStreamMetadata;
+
+        if (gifStreamMetadata.logicalScreenWidth != img.getWidth() ||
+                gifStreamMetadata.logicalScreenHeight != img.getHeight()) {
+            throw new RuntimeException("Test failed due to wrong logical screen dimension.");
+        }
+    }
+
+    private static BufferedImage createTestImage(int w, int h, int type) {
+        BufferedImage res = new BufferedImage(w, h, type);
+        Graphics2D g = res.createGraphics();
+        g.setColor(Color.white);
+        g.fillRect(0, 0, w, h);
+        g.setColor(Color.black);
+        g.fillRect(w/4, h/4, w/2, h/2);
+
+
+        return res;
+    }
+}