--- a/jaxp/.hgtags	Wed Jul 05 21:09:35 2017 +0200
+++ b/jaxp/.hgtags	Wed Jul 05 21:09:40 2017 +0200
@@ -340,3 +340,4 @@
 c8d0845877a811ab4350935892f826929359a3ff jdk-9+95
 1f3182529f2c474e5506955ccb3820cfa5822265 jdk-9+96
 9c107c050335d7ee63b2a8b38ca5d498f19713a2 jdk-9+97
+52b01339235f24c93b679bd6b8fb36a1072ad0ac jdk-9+98

--- a/jaxp/src/java.xml/share/classes/com/sun/org/apache/xerces/internal/jaxp/datatype/DurationImpl.java	Wed Jul 05 21:09:35 2017 +0200
+++ b/jaxp/src/java.xml/share/classes/com/sun/org/apache/xerces/internal/jaxp/datatype/DurationImpl.java	Wed Jul 05 21:09:40 2017 +0200
@@ -357,7 +357,7 @@
      *      The length of the duration in milliseconds.
      */
     protected DurationImpl(final long durationInMilliSeconds) {
-
+        boolean is0x8000000000000000L = false;
         long l = durationInMilliSeconds;
 
         if (l > 0) {
@@ -368,6 +368,7 @@
             if (l == 0x8000000000000000L) {
                 // negating 0x8000000000000000L causes an overflow
                 l++;
+                is0x8000000000000000L = true;
             }
             l *= -1;
         }
@@ -406,7 +407,8 @@
 
         // seconds & milliseconds
         int2long = (gregorianCalendar.get(Calendar.SECOND) * 1000)
-                    + gregorianCalendar.get(Calendar.MILLISECOND);
+                    + gregorianCalendar.get(Calendar.MILLISECOND)
+                    + (is0x8000000000000000L ? 1 : 0);
         this.seconds = BigDecimal.valueOf(int2long, 3);
     }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/test/javax/xml/jaxp/unittest/datatype/JDK8068839Test.java	Wed Jul 05 21:09:40 2017 +0200
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+package datatype;
+
+import javax.xml.datatype.DatatypeConfigurationException;
+import javax.xml.datatype.DatatypeFactory;
+import javax.xml.datatype.Duration;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+/*
+ * @bug 8068839
+ * @summary Verifies that Duration's edge cases
+ */
+public class JDK8068839Test {
+
+    @Test
+    public void test() throws DatatypeConfigurationException {
+        DatatypeFactory df = DatatypeFactory.newInstance();
+        Duration durationx = df.newDuration(Long.MIN_VALUE);
+        Assert.assertEquals(durationx.toString(), "-P292277024Y7M16DT7H12M55.808S");
+        durationx = df.newDuration(Long.MAX_VALUE);
+        Assert.assertEquals(durationx.toString(), "P292277024Y7M16DT7H12M55.807S");
+    }
+
+}