--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/security/CodeSigner/Serialize.java	Mon Dec 13 14:58:52 2010 +0000
@@ -0,0 +1,68 @@
+/*
+ * 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 6799854
+ * @summary CodeSigner.hashCode() does not work with serialization
+ */
+
+import java.io.*;
+import java.security.CodeSigner;
+import java.security.Timestamp;
+import java.security.cert.*;
+import java.util.Collections;
+import java.util.Date;
+
+public class Serialize {
+
+    public static void main(String[] args) throws Exception {
+
+        // Create a certpath consisting of one certificate
+        File f = new File(System.getProperty("test.src", "."), "cert_file");
+        FileInputStream fis = new FileInputStream(f);
+        CertificateFactory cf = CertificateFactory.getInstance("X.509");
+        Certificate c = cf.generateCertificate(fis);
+        fis.close();
+        CertPath cp = cf.generateCertPath(Collections.singletonList(c));
+
+        // Create a code signer
+        CodeSigner cs = new CodeSigner(cp, new Timestamp(new Date(), cp));
+
+        // Serialize the code signer
+        ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
+        ObjectOutputStream out = new ObjectOutputStream(byteOut);
+        out.writeObject(cs);
+        out.close();
+
+        // Deserialize the code signer
+        byte[] data = byteOut.toByteArray();
+        CodeSigner cs2 = (CodeSigner) new ObjectInputStream(
+            new ByteArrayInputStream(data)).readObject();
+
+        // Test for equality
+        if (!cs.equals(cs2) || cs.hashCode() != cs2.hashCode()) {
+            throw new Exception("CodeSigner serialization test FAILED");
+        }
+    }
+}