1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    23 

    24 /*

    25  * @test

    26  * @bug 8009582

    27  * @summary Method reference generic constructor gives: IllegalArgumentException: Invalid lambda deserialization

    28  * @author  Robert Field

    29  * @run main GenericMethodRefImplClass

    30  */

    31 

    32 import java.io.*;

    33 import java.util.*;

    34 

    35 public class GenericMethodRefImplClass {

    36 

    37     static int assertionCount = 0;

    38 

    39     static void assertTrue(boolean cond) {

    40         assertionCount++;

    41         if (!cond)

    42             throw new AssertionError();

    43     }

    44 

    45     public static void main(String[] args) throws Exception {

    46         try {

    47             // Write lambdas out

    48             ByteArrayOutputStream baos = new ByteArrayOutputStream();

    49             ObjectOutput out = new ObjectOutputStream(baos);

    50 

    51             write(out, HashMap::new );

    52             out.flush();

    53             out.close();

    54 

    55             // Read them back

    56             ByteArrayInputStream bais =

    57                 new ByteArrayInputStream(baos.toByteArray());

    58             ObjectInputStream in = new ObjectInputStream(bais);

    59             readIt(in);

    60             in.close();

    61         } catch (IOException e) {

    62             e.printStackTrace();

    63             throw e;

    64         }

    65         assertTrue(assertionCount == 1);

    66     }

    67 

    68     static void write(ObjectOutput out, GenericMethodRefImplClassLSI lamb) throws IOException {

    69         out.writeObject(lamb);

    70     }

    71 

    72     static void readIt(ObjectInputStream in)  throws IOException, ClassNotFoundException {

    73         GenericMethodRefImplClassLSI ls = (GenericMethodRefImplClassLSI) in.readObject();

    74         Map result = ls.convert();

    75         assertTrue(result.getClass().getName().equals("java.util.HashMap"));

    76     }

    77 }

    78 

    79 interface GenericMethodRefImplClassLSI extends Serializable {

    80     Map convert();

    81 }