--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/util/Properties/SaveComments.java	Thu Jan 25 14:12:43 2018 +0800
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2018, 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 5087448
+ * @summary Verify that property.save saves comments correctly
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+public class SaveComments {
+
+    public static void main(String[] argv) throws IOException {
+        String ls = System.getProperty("line.separator");
+        String[] input = new String[] {
+          "Comments with \u4e2d\u6587\u6c49\u5b57 included",
+          "Comments with \n Second comments line",
+          "Comments with \n# Second comments line",
+          "Comments with \n! Second comments line",
+          "Comments with last character is \n",
+          "Comments with last character is \r\n",
+          "Comments with last two characters are \n\n",
+          "Comments with last four characters are \r\n\r\n",
+          "Comments with \nkey4=value4",
+          "Comments with \n#key4=value4"};
+
+        String[] output = new String[] {
+          "#Comments with \\u4E2D\\u6587\\u6C49\\u5B57 included" + ls,
+          "#Comments with " + ls + "# Second comments line" + ls,
+          "#Comments with " + ls + "# Second comments line" + ls,
+          "#Comments with " + ls + "! Second comments line" + ls,
+          "#Comments with last character is " + ls+"#"+ls,
+          "#Comments with last character is " + ls+"#"+ls,
+          "#Comments with last two characters are " + ls+"#"+ls+"#"+ls,
+          "#Comments with last four characters are " + ls+"#"+ls+"#"+ls};
+
+        Properties props = new Properties();
+        boolean failed = false;
+        int i = 0;
+        for (i = 0; i < output.length; i++) {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream(200);
+            props.store(baos, input[i]);
+            String result = baos.toString("iso8859-1");
+            if (result.indexOf(output[i]) == -1) {
+                System.out.println("Wrong \"store()\" output:");
+                System.out.println(result);
+                failed = true;
+            }
+        }
+
+        props.put("key1", "value1");
+        props.put("key2", "value2");
+        props.put("key3", "value3");
+        for (; i < input.length; i++) {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream(200);
+            props.store(baos, input[i]);
+            Properties propsNew = new Properties();
+            propsNew.load(new ByteArrayInputStream(baos.toByteArray()));
+            /*
+            Set<Map.Entry<Object, Object>> kvsetNew = propsNew.entrySet();
+            Set<Map.Entry<Object, Object>> kvset = props.entrySet();
+            if (!kvsetNew.containsAll(kvset) || !kvset.containsAll(kvsetNew)) {
+            */
+            if (!props.equals (propsNew)) {
+                System.out.println("Wrong output:");
+                System.out.println(baos.toString("iso8859-1"));
+                failed = true;
+            }
+        }
+        if (failed)
+            throw new RuntimeException("Incorrect Properties Comment Output.");
+    }
+}