test/tools/javac/lambda/GenericMethodRefImplClass.java

Tue, 12 Mar 2013 16:02:43 +0000

author
mcimadamore
date
Tue, 12 Mar 2013 16:02:43 +0000
changeset 1628
5ddecb91d843
parent 0
959103a6100f
permissions
-rw-r--r--

8009545: Graph inference: dependencies between inference variables should be set during incorporation
Summary: Move all transitivity checks into the incorporation round
Reviewed-by: jjg

     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
    21  * questions.
    22  */
    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  */
    32 import java.io.*;
    33 import java.util.*;
    35 public class GenericMethodRefImplClass {
    37     static int assertionCount = 0;
    39     static void assertTrue(boolean cond) {
    40         assertionCount++;
    41         if (!cond)
    42             throw new AssertionError();
    43     }
    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);
    51             write(out, HashMap::new );
    52             out.flush();
    53             out.close();
    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     }
    68     static void write(ObjectOutput out, GenericMethodRefImplClassLSI lamb) throws IOException {
    69         out.writeObject(lamb);
    70     }
    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 }
    79 interface GenericMethodRefImplClassLSI extends Serializable {
    80     Map convert();
    81 }

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