jdk8-mips64-public/langtools: test/tools/javac/T8004969.java@7909abb85562

     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 8004969

    27 @summary Lambda deserialization

    29 */

    31 import java.io.*;

    33 public class T8004969 implements Serializable {

    35     static int assertionCount = 0;

    37     static void assertTrue(boolean cond) {

    38         assertionCount++;

    39         if (!cond)

    40             throw new AssertionError();

    41     }

    43     static String mm(String s) { return "mref" + s; }

    45     String aField = "aF";

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

    48         (new T8004969()).doit();

    49     }

    51     public void doit() throws Exception {

    52         String aLocal = "aL";

    53         int anInt = 99;

    55         try {

    56             // Write lambdas out

    57             ByteArrayOutputStream baos = new ByteArrayOutputStream();

    58             ObjectOutput out = new ObjectOutputStream(baos);

    60             write(out, z -> "[" + z + "]" );

    61             write(out, z -> { String x = z + z; return x + x; } );

    62             write(out, T8004969::mm );

    63             write(out, z -> (new LSI() { public String convert(String x) { return "*"+x; }} ).convert(z) );

    64             write(out, z -> aField + z );

    65             write(out, z -> aLocal + z );

    66             write(out, z -> z + anInt );

    67             out.flush();

    68             out.close();

    70             // Read them back

    71             ByteArrayInputStream bais =

    72                 new ByteArrayInputStream(baos.toByteArray());

    73             ObjectInputStream in = new ObjectInputStream(bais);

    74             readAssert(in, "[X]");

    75             readAssert(in, "XXXX");

    76             readAssert(in, "mrefX");

    77             readAssert(in, "*X");

    78             readAssert(in, "aFX");

    79             readAssert(in, "aLX");

    80             readAssert(in, "X99");

    81             in.close();

    82         } catch (IOException e) {

    83             e.printStackTrace();

    84             throw e;

    85         }

    86         assertTrue(assertionCount == 7);

    87     }

    89     static void write(ObjectOutput out, LSI lamb) throws IOException {

    90         out.writeObject(lamb);

    91     }

    93     static void readAssert(ObjectInputStream in, String expected)  throws IOException, ClassNotFoundException {

    94         LSI ls = (LSI) in.readObject();

    95         String result = ls.convert("X");

    96         System.out.printf("Result: %s\n", result);

    97         assertTrue(result.equals(expected));

    98     }

    99 }

   101 interface LSI extends Serializable {

   102     String convert(String x);

   103 }

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