--- a/jdk/src/java.desktop/share/classes/java/awt/font/OpenType.java	Tue May 12 16:43:32 2015 +0400
+++ b/jdk/src/java.desktop/share/classes/java/awt/font/OpenType.java	Tue May 12 20:30:48 2015 +0300
@@ -331,7 +331,7 @@
    * Optical bounds.  Table tag "opbd" in the Open
    * Type Specification.
    */
-  public final static int       TAG_OPBD        = 0x6d6f7274;
+  public final static int       TAG_OPBD        = 0x6F706264;
 
   /**
    * Glyph properties.  Table tag "prop" in the Open

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/font/OpenType/OpticalBoundsTagTest.java	Tue May 12 20:30:48 2015 +0300
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2015, 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.font.OpenType;
+import java.io.IOException;
+
+/**
+  * @test
+  * @bug 8077584
+  * @summary Test for TAG_OPBD tag. Should be unique and not same as TAG_MORT.
+  * @run main OpticalBoundsTagTest
+  */
+
+public class OpticalBoundsTagTest {
+
+    public static void main(String[] a) throws Exception {
+
+        int tag_opbd = java.awt.font.OpenType.TAG_OPBD;
+        if (tag_opbd == java.awt.font.OpenType.TAG_MORT) {
+            System.out.println("Test failed: TAG_OPBD:" + tag_opbd);
+            throw new RuntimeException("TAG_OPBD same as TAG_MORT");
+        } else {
+            System.out.println("Test passed: TAG_OPBD: " + tag_opbd);
+        }
+    }
+}