diff -r f66c0faf0184 -r 4b9857e483c1 jdk/test/sun/security/krb5/auto/W83.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/krb5/auto/W83.java	Fri Jun 04 19:28:53 2010 +0800
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2010, 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 6951366
+ * @summary kerberos login failure on win2008 with AD set to win2000 compat mode
+ */
+import com.sun.security.auth.module.Krb5LoginModule;
+import java.io.File;
+import sun.security.krb5.Config;
+import sun.security.krb5.EncryptedData;
+import sun.security.krb5.PrincipalName;
+import sun.security.krb5.internal.crypto.EType;
+import sun.security.krb5.internal.ktab.KeyTab;
+
+public class W83 {
+    public static void main(String[] args) throws Exception {
+
+        W83 x = new W83();
+
+        // Cannot use OneKDC. kinit command cannot resolve
+        // hostname kdc.rabbit.hole
+        KDC kdc = new KDC(OneKDC.REALM, "127.0.0.1", 0, true);
+        kdc.addPrincipal(OneKDC.USER, OneKDC.PASS);
+        kdc.addPrincipalRandKey("krbtgt/" + OneKDC.REALM);
+        KDC.saveConfig(OneKDC.KRB5_CONF, kdc);
+        System.setProperty("java.security.krb5.conf", OneKDC.KRB5_CONF);
+        Config.refresh();
+
+        kdc.writeKtab(OneKDC.KTAB);
+        new File(OneKDC.KRB5_CONF).deleteOnExit();
+        new File(OneKDC.KTAB).deleteOnExit();
+
+        kdc.setOption(KDC.Option.ONLY_RC4_TGT, true);
+
+        KeyTab ktab = KeyTab.getInstance(OneKDC.KTAB);
+        for (int etype: EType.getBuiltInDefaults()) {
+            if (etype != EncryptedData.ETYPE_ARCFOUR_HMAC) {
+                ktab.deleteEntry(new PrincipalName(OneKDC.USER), etype);
+            }
+        }
+        ktab.save();
+        x.go();
+    }
+
+    void go() throws Exception {
+        Krb5LoginModule krb5 = new Krb5LoginModule();
+        StringBuffer error = new StringBuffer();
+        try {
+            Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false);
+        } catch (Exception e) {
+            error.append("Krb5LoginModule password login error\n");
+        }
+        try {
+            Context.fromUserKtab(OneKDC.USER, OneKDC.KTAB, false);
+        } catch (Exception e) {
+            error.append("Krb5LoginModule keytab login error\n");
+        }
+        try {
+            Class.forName("sun.security.krb5.internal.tools.Kinit");
+            String cmd = System.getProperty("java.home") +
+                    System.getProperty("file.separator") +
+                    "bin" +
+                    System.getProperty("file.separator") +
+                    "kinit";
+
+            int p = execute(
+                cmd,
+                "-J-Djava.security.krb5.conf=" + OneKDC.KRB5_CONF,
+                "-c", "cache1",
+                OneKDC.USER,
+                new String(OneKDC.PASS));
+            if (p != 0) {
+                error.append("kinit password login error\n");
+            }
+            p = execute(
+                cmd,
+                "-J-Djava.security.krb5.conf=" + OneKDC.KRB5_CONF,
+                "-c", "cache2",
+                "-k", "-t", OneKDC.KTAB,
+                OneKDC.USER);
+            if (p != 0) {
+                error.append("kinit keytab login error\n");
+            }
+        } catch (ClassNotFoundException cnfe) {
+            System.out.println("No kinit, test ignored.");
+            // Ignore, not on windows
+        }
+        if (error.length() != 0) {
+            throw new Exception(error.toString());
+        }
+    }
+
+    private static int execute(String... args) throws Exception {
+        for (String arg: args) {
+            System.out.printf("%s ", arg);
+        }
+        System.out.println();
+        Process p = Runtime.getRuntime().exec(args);
+        return p.waitFor();
+    }
+}