--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/Properties/CompatibilityTest.java	Fri Dec 21 17:29:23 2012 -0800
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2012, 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 8005280 8004371
+ * @summary Compatibility test
+ * @run main CompatibilityTest
+ * @run main/othervm -Dsun.util.spi.XmlPropertiesProvider=jdk.internal.util.xml.BasicXmlPropertiesProvider CompatibilityTest
+ */
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+/**
+ * This is a behavior compatibility test.
+ * Although not defined by the properties.dtd, the constructs
+ * in Compatibility.xml are supported by the regular JDK XML
+ * Provider.
+ *
+ * @author: Joe Wang
+ */
+public class CompatibilityTest {
+
+    public static void main(String[] args) {
+        testInternalDTD();
+    }
+
+    /*
+     * Not in the spec, but the constructs work with the current JDK
+     */
+    static void testInternalDTD() {
+        String src = System.getProperty("test.src");
+        if (src == null) {
+            src = ".";
+        }
+        loadPropertyFile(src + "/Compatibility.xml");
+    }
+
+    /*
+     * 'Store' the populated 'Property' with the specified 'Encoding Type' as an
+     * XML file. Retrieve the same XML file and 'load' onto a new 'Property' object.
+     */
+    static void loadPropertyFile(String filename) {
+        try (InputStream in = new FileInputStream(filename)) {
+            Properties prop = new Properties();
+            prop.loadFromXML(in);
+            verifyProperites(prop);
+        } catch (IOException ex) {
+            fail(ex.getMessage());
+        }
+    }
+
+    /*
+     * This method verifies the first key-value with the original string.
+     */
+    static void verifyProperites(Properties prop) {
+        try {
+            for (String key : prop.stringPropertyNames()) {
+                String val = prop.getProperty(key);
+                if (key.equals("Key1")) {
+                    if (!val.equals("value1")) {
+                        fail("Key:" + key + "'s value: \nExpected: value1\nFound: " + val);
+                    }
+                } else if (key.equals("Key2")) {
+                    if (!val.equals("<value2>")) {
+                        fail("Key:" + key + "'s value: \nExpected: <value2>\nFound: " + val);
+                    }
+                } else if (key.equals("Key3")) {
+                    if (!val.equals("value3")) {
+                        fail("Key:" + key + "'s value: \nExpected: value3\nFound: " + val);
+                    }
+                }
+            }
+        } catch (Exception e) {
+            fail(e.getMessage());
+        }
+
+    }
+
+    static void fail(String err) {
+        throw new RuntimeException(err);
+    }
+
+}