--- /dev/null	2016-05-17 12:01:17.473251102 +0900
+++ new/test/java/text/Format/NumberFormat/Bug4944439.java	2016-05-23 13:57:55.703649212 +0900
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2003, 2016, 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 4944439
+ * @summary Confirm that numbers where all digits after the decimal separator are 0
+ * and which are between Long.MIN_VALUE and Long.MAX_VALUE are returned as Long(not double).
+ */
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.text.DecimalFormat;
+import java.util.Locale;
+
+public class Bug4944439 {
+
+    static boolean err = false;
+    static DecimalFormat df;
+
+    public static void main(String[] args) throws Exception {
+
+        Locale defaultLoc = Locale.getDefault();
+        Locale.setDefault(Locale.US);
+
+        df = new DecimalFormat();
+        String s = "-9223372036854775809";      // Long.MIN_VALUE-1
+        check_Double(s);
+
+        test(Long.MIN_VALUE, Long.MIN_VALUE+10);
+        test(-10, 10);
+        test(Long.MAX_VALUE-10, Long.MAX_VALUE-1);
+
+        s = "9223372036854775807.00";   // Long.MAX_VALUE
+        check_Long(s);
+        s = "9223372036854775808";      // Long.MAX_VALUE+1
+        check_Double(s);
+
+        s = "-0.0";
+        check_Double(s);
+        s = "0.0";
+        check_Long(s);
+
+        Locale.setDefault(defaultLoc);
+
+        if (err) {
+            throw new RuntimeException("Wrong parsing with DecimalFormat");
+        }
+    }
+
+    private static void test(long from, long to) throws Exception {
+        for (long l = from; l <= to; l++) {
+            check_Long(Long.toString(l) + ".00");
+        }
+    }
+
+    private static void check_Long(String s) throws Exception {
+        Number number = df.parse(s);
+        if (!(number instanceof Long)) {
+            err = true;
+            System.err.println("Failed: DecimalFormat.parse(\"" + s +
+                "\") should return a Long, but returned a " +
+                number.getClass().getName());
+        }
+
+        int index = s.indexOf('.');
+        Long l = new Long(s.substring(0, index));
+        if (!l.equals(number)) {
+            err = true;
+            System.err.println("Failed: DecimalFormat.parse(" + s +
+                ") should return a Long(" + l + "), but returned " + number);
+        }
+    }
+
+    private static void check_Double(String s) throws Exception {
+        Number number = df.parse(s);
+        if (!(number instanceof Double)) {
+            err = true;
+            System.err.println("Failed: DecimalFormat.parse(\"" + s +
+                "\") should return a Double, but returned a " +
+                number.getClass().getName());
+        }
+
+        Double d = new Double(s);
+        if (!d.equals(number)) {
+            err = true;
+            System.err.println("Failed: DecimalFormat.parse(" + s +
+                ") should return a Double(" + d + "), but returned " + number);
+        }
+    }
+}