--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/sun/security/krb5/auto/TwoOrThree.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2012, 2013, 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 8005447
+ * @summary default principal can act as anyone
+ * @compile -XDignore.symbol.file TwoOrThree.java
+ * @run main/othervm TwoOrThree first first
+ * @run main/othervm/fail TwoOrThree first second
+ * @run main/othervm TwoOrThree - first
+ * @run main/othervm TwoOrThree - second
+ * @run main/othervm/fail TwoOrThree - third
+ */
+
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardOpenOption;
+import javax.security.auth.Subject;
+import sun.security.jgss.GSSUtil;
+
+/*
+ * The JAAS login has two krb5 modules
+ *   1. principal is A
+ *   2. principal is B
+ * A named principal can only accept itself. The default principal can accept
+ * either, but not any other service even if the keytab also include its keys.
+ */
+public class TwoOrThree {
+
+    public static void main(String[] args) throws Exception {
+
+        String server = args[0].equals("-") ? null : args[0];
+        String target = args[1];
+        OneKDC kdc = new OneKDC(null);
+        kdc.addPrincipal("first", "first".toCharArray());
+        kdc.addPrincipal("second", "second".toCharArray());
+        kdc.addPrincipal("third", "third".toCharArray());
+        kdc.writeKtab(OneKDC.KTAB);
+
+        Context c = Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false);
+
+        // Using keytabs
+        Subject sub4s = new Subject();
+        Context.fromUserKtab(sub4s, "first", OneKDC.KTAB, true);
+        Context s = Context.fromUserKtab(sub4s, "second", OneKDC.KTAB, true);
+        c.startAsClient(target, GSSUtil.GSS_KRB5_MECH_OID);
+        s.startAsServer(server, GSSUtil.GSS_KRB5_MECH_OID);
+        Context.handshake(c, s);
+
+        // Using keys
+        sub4s = new Subject();
+        Context.fromUserPass(sub4s, "first", "first".toCharArray(), true);
+        s = Context.fromUserPass(sub4s, "second", "second".toCharArray(), true);
+        c.startAsClient(target, GSSUtil.GSS_KRB5_MECH_OID);
+        s.startAsServer(server, GSSUtil.GSS_KRB5_MECH_OID);
+        Context.handshake(c, s);
+
+        s.dispose();
+        c.dispose();
+    }
+}