diff -r 02bd145a47f6 -r e0ee3917e318 jdk/test/sun/security/krb5/MicroTime.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/krb5/MicroTime.java	Thu Jun 10 18:58:31 2010 -0700
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2010 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+/*
+ * @test
+ * @bug 6882687
+ * @summary KerberosTime too imprecise
+ */
+
+import sun.security.krb5.internal.KerberosTime;
+
+public class MicroTime {
+    public static void main(String[] args) throws Exception {
+        // We count how many different KerberosTime values
+        // can be acquired within one second.
+        KerberosTime t1 = new KerberosTime(true);
+        KerberosTime last = t1;
+        int count = 0;
+        while (true) {
+            KerberosTime t2 = new KerberosTime(true);
+            if (t2.getTime() - t1.getTime() > 1000) break;
+            if (!last.equals(t2)) {
+                last = t2;
+                count++;
+            }
+        }
+        // We believe a nice KerberosTime can at least tell the
+        // difference of 100 musec.
+        if (count < 10000) {
+            throw new Exception("What? only " + (1000000/count) +
+                    " musec precision?");
+        }
+    }
+}