diff -r 2a6d13ebbbed -r f36521ae16db jdk/test/sun/security/jgss/spnego/NoSpnegoAsDefMech.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/jgss/spnego/NoSpnegoAsDefMech.java	Fri Nov 27 08:51:58 2009 +0800
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009 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 6770883
+ * @summary Infinite loop if SPNEGO specified as sun.security.jgss.mechanism
+ */
+
+import org.ietf.jgss.*;
+import sun.security.jgss.*;
+
+public class NoSpnegoAsDefMech {
+
+    public static void main(String[] argv) throws Exception {
+        System.setProperty("sun.security.jgss.mechanism", GSSUtil.GSS_SPNEGO_MECH_OID.toString());
+        try {
+            GSSManager.getInstance().createName("service@host", GSSName.NT_HOSTBASED_SERVICE, new Oid("1.3.6.1.5.5.2"));
+        } catch (GSSException e) {
+            // This is OK, for example, krb5.conf is missing or other problems
+        }
+    }
+}