diff -r 9918719cfcc0 -r 7956b5dc0eac jdk/test/java/util/logging/HigherResolutionTimeStamps/SerializeLogRecord.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/logging/HigherResolutionTimeStamps/SerializeLogRecord.java	Wed Feb 25 18:41:07 2015 +0100
@@ -0,0 +1,363 @@
+/*
+ * 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.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.time.ZoneId;
+import java.util.Base64;
+import java.util.Locale;
+import java.util.TimeZone;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.SimpleFormatter;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+/**
+ * @test
+ * @bug 8072645
+ * @summary tests the compatibility of LogRecord serial form between
+ *          JDK 8 and JDK 9. Ideally this test should be run on both platforms.
+ *          (It is designed to run on both).
+ * @run main/othervm SerializeLogRecord
+ * @author danielfuchs
+ */
+public class SerializeLogRecord {
+
+    /**
+     * Serializes a log record, encode the serialized bytes in base 64, and
+     * prints pseudo java code that can be cut and pasted into this test.
+     * @param record the log record to serialize, encode in base 64, and for
+     *               which test data will be generated.
+     * @return A string containing the generated pseudo java code.
+     * @throws IOException Unexpected.
+     * @throws ClassNotFoundException  Unexpected.
+     */
+    public static String generate(LogRecord record) throws IOException, ClassNotFoundException {
+
+        // Format the given logRecord using the SimpleFormatter
+        SimpleFormatter formatter = new SimpleFormatter();
+        String str = formatter.format(record);
+
+        // Serialize the given LogRecord
+        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        final ObjectOutputStream oos = new ObjectOutputStream(baos);
+        oos.writeObject(record);
+        oos.flush();
+        oos.close();
+
+        // Now we're going to perform a number of smoke tests before
+        // generating the Java pseudo code.
+        //
+        // First checks that the log record can be deserialized
+        final ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+        final ObjectInputStream ois = new ObjectInputStream(bais);
+        final LogRecord record2 = (LogRecord)ois.readObject();
+
+        // Format the deserialized LogRecord using the SimpleFormatter, and
+        // check that the string representation obtained matches the string
+        // representation of the original LogRecord
+        String str2 = formatter.format(record2);
+        if (!str.equals(str2)) throw new RuntimeException("Unexpected values in deserialized object:"
+                + "\n\tExpected:  " + str
+                + "\n\tRetrieved: "+str);
+
+        // Now get a Base64 string representation of the serialized bytes.
+        final String base64 = Base64.getEncoder().encodeToString(baos.toByteArray());
+
+        // Check that we can deserialize a log record from the Base64 string
+        // representation we just computed.
+        final ByteArrayInputStream bais2 = new ByteArrayInputStream(Base64.getDecoder().decode(base64));
+        final ObjectInputStream ois2 = new ObjectInputStream(bais2);
+        final LogRecord record3 = (LogRecord)ois2.readObject();
+
+        // Format the new deserialized LogRecord using the SimpleFormatter, and
+        // check that the string representation obtained matches the string
+        // representation of the original LogRecord
+        String str3 = formatter.format(record3);
+        if (!str.equals(str3)) throw new RuntimeException("Unexpected values in deserialized object:"
+                + "\n\tExpected:  " + str
+                + "\n\tRetrieved: "+str);
+        //System.out.println(base64);
+        //System.out.println();
+
+        // Generates the Java Pseudo code that can be cut & pasted into
+        // this test (see Jdk8SerializedLog and Jdk9SerializedLog below)
+        final StringBuilder sb = new StringBuilder();
+        sb.append("    /**").append('\n');
+        sb.append("     * Base64 encoded string for LogRecord object.").append('\n');
+        sb.append("     * Java version: ").append(System.getProperty("java.version")).append('\n');
+        sb.append("     **/").append('\n');
+        sb.append("    final String base64 = ").append("\n          ");
+        final int last = base64.length() - 1;
+        for (int i=0; i<base64.length();i++) {
+            if (i%64 == 0) sb.append("\"");
+            sb.append(base64.charAt(i));
+            if (i%64 == 63 || i == last) {
+                sb.append("\"");
+                if (i == last) sb.append(";\n");
+                else sb.append("\n        + ");
+            }
+        }
+        sb.append('\n');
+        sb.append("    /**").append('\n');
+        sb.append("     * SimpleFormatter output for LogRecord object.").append('\n');
+        sb.append("     * Java version: ").append(System.getProperty("java.version")).append('\n');
+        sb.append("     **/").append('\n');
+        sb.append("    final String str = ").append("\n          ");
+        sb.append("\"").append(str.replace("\n", "\\n")).append("\";\n");
+        return sb.toString();
+    }
+
+    /**
+     * An abstract class to test that a log record previously serialized on a
+     * different java version can be deserialized in the current java version.
+     * (see Jdk8SerializedLog and Jdk9SerializedLog below)
+     */
+    public static abstract class SerializedLog {
+        public abstract String getBase64();
+        public abstract String getString();
+
+        /**
+         * Deserializes the Base64 encoded string returned by {@link
+         * #getBase64()}, format the obtained LogRecord using a
+         * SimpleFormatter, and checks that the string representation obtained
+         * matches the original string representation returned by {@link
+         * #getString()}.
+         */
+        protected void dotest() {
+            try {
+                final String base64 = getBase64();
+                final ByteArrayInputStream bais =
+                        new ByteArrayInputStream(Base64.getDecoder().decode(base64));
+                final ObjectInputStream ois = new ObjectInputStream(bais);
+                final LogRecord record = (LogRecord)ois.readObject();
+                final SimpleFormatter formatter = new SimpleFormatter();
+                String expected = getString();
+                String str2 = formatter.format(record);
+                check(expected, str2);
+                System.out.println(str2);
+                System.out.println("PASSED: "+this.getClass().getName()+"\n");
+            } catch (IOException | ClassNotFoundException x) {
+                throw new RuntimeException(x);
+            }
+        }
+        /**
+         * Check that the actual String representation obtained matches the
+         * expected String representation.
+         * @param expected Expected String representation, as returned by
+         *                 {@link #getString()}.
+         * @param actual   Actual String representation obtained by formatting
+         *                 the LogRecord obtained by the deserialization of the
+         *                 bytes encoded in {@link #getBase64()}.
+         */
+        protected void check(String expected, String actual) {
+            if (!expected.equals(actual)) {
+                throw new RuntimeException(this.getClass().getName()
+                    + " - Unexpected values in deserialized object:"
+                    + "\n\tExpected:  " + expected
+                    + "\n\tRetrieved: "+ actual);
+            }
+        }
+    }
+
+    public static class Jdk8SerializedLog extends SerializedLog {
+
+        // Generated by generate() on JDK 8.
+        // --------------------------------
+        // BEGIN
+
+        /**
+         * Base64 encoded string for LogRecord object.
+         * Java version: 1.8.0_11
+         **/
+        final String base64 =
+              "rO0ABXNyABtqYXZhLnV0aWwubG9nZ2luZy5Mb2dSZWNvcmRKjVk982lRlgMACkoA"
+            + "Bm1pbGxpc0oADnNlcXVlbmNlTnVtYmVySQAIdGhyZWFkSURMAAVsZXZlbHQAGUxq"
+            + "YXZhL3V0aWwvbG9nZ2luZy9MZXZlbDtMAApsb2dnZXJOYW1ldAASTGphdmEvbGFu"
+            + "Zy9TdHJpbmc7TAAHbWVzc2FnZXEAfgACTAAScmVzb3VyY2VCdW5kbGVOYW1lcQB+"
+            + "AAJMAA9zb3VyY2VDbGFzc05hbWVxAH4AAkwAEHNvdXJjZU1ldGhvZE5hbWVxAH4A"
+            + "AkwABnRocm93bnQAFUxqYXZhL2xhbmcvVGhyb3dhYmxlO3hwAAABSjUCgo0AAAAA"
+            + "AAAAAAAAAAFzcgAXamF2YS51dGlsLmxvZ2dpbmcuTGV2ZWyOiHETUXM2kgIAA0kA"
+            + "BXZhbHVlTAAEbmFtZXEAfgACTAAScmVzb3VyY2VCdW5kbGVOYW1lcQB+AAJ4cAAA"
+            + "AyB0AARJTkZPdAAic3VuLnV0aWwubG9nZ2luZy5yZXNvdXJjZXMubG9nZ2luZ3QA"
+            + "BHRlc3R0ABFKYXZhIFZlcnNpb246IHswfXBwcHB3BgEAAAAAAXQACDEuOC4wXzEx"
+            + "eA==";
+
+        /**
+         * SimpleFormatter output for LogRecord object.
+         * Java version: 1.8.0_11
+         **/
+        final String str =
+              "Dec 10, 2014 4:22:44.621000000 PM test - INFO: Java Version: 1.8.0_11";
+              //                    ^^^
+              // Notice the milli second resolution above...
+
+        // END
+        // --------------------------------
+
+        @Override
+        public String getBase64() {
+            return base64;
+        }
+
+        @Override
+        public String getString() {
+            return str;
+        }
+
+        public static void test() {
+            new Jdk8SerializedLog().dotest();
+        }
+    }
+
+    public static class Jdk9SerializedLog extends SerializedLog {
+
+        // Generated by generate() on JDK 9.
+        // --------------------------------
+        // BEGIN
+
+        /**
+         * Base64 encoded string for LogRecord object.
+         * Java version: 1.9.0-internal
+         **/
+        final String base64 =
+              "rO0ABXNyABtqYXZhLnV0aWwubG9nZ2luZy5Mb2dSZWNvcmRKjVk982lRlgMAC0oA"
+            + "Bm1pbGxpc0kADm5hbm9BZGp1c3RtZW50SgAOc2VxdWVuY2VOdW1iZXJJAAh0aHJl"
+            + "YWRJREwABWxldmVsdAAZTGphdmEvdXRpbC9sb2dnaW5nL0xldmVsO0wACmxvZ2dl"
+            + "ck5hbWV0ABJMamF2YS9sYW5nL1N0cmluZztMAAdtZXNzYWdlcQB+AAJMABJyZXNv"
+            + "dXJjZUJ1bmRsZU5hbWVxAH4AAkwAD3NvdXJjZUNsYXNzTmFtZXEAfgACTAAQc291"
+            + "cmNlTWV0aG9kTmFtZXEAfgACTAAGdGhyb3dudAAVTGphdmEvbGFuZy9UaHJvd2Fi"
+            + "bGU7eHAAAAFLl3u6OAAOU/gAAAAAAAAAAAAAAAFzcgAXamF2YS51dGlsLmxvZ2dp"
+            + "bmcuTGV2ZWyOiHETUXM2kgIAA0kABXZhbHVlTAAEbmFtZXEAfgACTAAScmVzb3Vy"
+            + "Y2VCdW5kbGVOYW1lcQB+AAJ4cAAAAyB0AARJTkZPdAAic3VuLnV0aWwubG9nZ2lu"
+            + "Zy5yZXNvdXJjZXMubG9nZ2luZ3QABHRlc3R0ABFKYXZhIFZlcnNpb246IHswfXBw"
+            + "cHB3BgEAAAAAAXQADjEuOS4wLWludGVybmFseA==";
+
+        /**
+         * SimpleFormatter output for LogRecord object.
+         * Java version: 1.9.0-internal
+         **/
+        final String str =
+              "Feb 17, 2015 12:20:43.192939000 PM test - INFO: Java Version: 1.9.0-internal";
+              //                       ^^^
+              // Notice the micro second resolution above...
+
+        // END
+        // --------------------------------
+
+        @Override
+        public String getBase64() {
+            return base64;
+        }
+
+        @Override
+        public String getString() {
+            return str;
+        }
+
+        @Override
+        protected void check(String expected, String actual) {
+            if (System.getProperty("java.version").startsWith("1.8")) {
+                // If we are in JDK 8 and print a log record serialized in JDK 9,
+                // then we won't be able to print anything below the millisecond
+                // precision, since that hasn't been implemented in JDK 8.
+                // Therefore - we need to replace anything below millseconds by
+                // zeroes in the expected string (which was generated on JDK 9).
+                Pattern pattern = Pattern.compile("^"
+                        + "(.*\\.[0-9][0-9][0-9])" // group1: everything up to milliseconds
+                        + "([0-9][0-9][0-9][0-9][0-9][0-9])" // group 2: micros and nanos
+                        + "(.* - .*)$"); // group three: all the rest...
+                Matcher matcher = pattern.matcher(expected);
+                if (matcher.matches()) {
+                    expected = matcher.group(1) + "000000" + matcher.group(3);
+                }
+            }
+            super.check(expected, actual);
+        }
+
+        public static void test() {
+            new Jdk9SerializedLog().dotest();
+        }
+    }
+
+    public static void generate() {
+        try {
+            LogRecord record = new LogRecord(Level.INFO, "Java Version: {0}");
+            record.setLoggerName("test");
+            record.setParameters(new Object[] {System.getProperty("java.version")});
+            System.out.println(generate(record));
+        } catch (IOException | ClassNotFoundException x) {
+            throw new RuntimeException(x);
+        }
+    }
+
+    static enum TestCase { GENERATE, TESTJDK8, TESTJDK9 };
+
+    public static void main(String[] args) {
+        // Set the locale and time zone to make sure we won't depend on the
+        // test env - in particular we don't want to depend on the
+        // time zone in which the test machine might be located.
+        // So we're gong to use Locale English and Time Zone UTC for this test.
+        // (Maybe that should be Locale.ROOT?)
+        Locale.setDefault(Locale.ENGLISH);
+        TimeZone.setDefault(TimeZone.getTimeZone(ZoneId.of("UTC")));
+
+        // Set the format property to make sure we always have the nanos, and
+        // to make sure it's the same format than what we used when
+        // computing the formatted string for Jdk8SerializedLog and
+        // Jdk9SerializedLog above.
+        //
+        // If you change the formatting, then you will need to regenerate
+        // the data for Jdk8SerializedLog and Jdk9SerializedLog.
+        //
+        // To do that - just run this test on JDK 8, and cut & paste the
+        // pseudo code printed by generate() into Jdk8SerializedLog.
+        // Then run this test again on JDK 9, and cut & paste the
+        // pseudo code printed by generate() into Jdk9SerializedLog.
+        // [Note: you can pass GENERATE as single arg to main() to avoid
+        //        running the actual test]
+        // Finally run the test again to check that it still passes after
+        // your modifications.
+        //
+        System.setProperty("java.util.logging.SimpleFormatter.format",
+                "%1$tb %1$td, %1$tY %1$tl:%1$tM:%1$tS.%1$tN %1$Tp %2$s - %4$s: %5$s%6$s");
+
+        // If no args, then run everything....
+        if (args == null || args.length == 0) {
+            args = new String[] { "GENERATE", "TESTJDK8", "TESTJDK9" };
+        }
+
+        // Run the specified test case(s)
+        Stream.of(args).map(x -> TestCase.valueOf(x)).forEach((x) -> {
+            switch(x) {
+                case GENERATE: generate(); break;
+                case TESTJDK8: Jdk8SerializedLog.test(); break;
+                case TESTJDK9: Jdk9SerializedLog.test(); break;
+            }
+        });
+    }
+}