test/tools/javac/lambda/GenericMethodRefImplClass.java

changeset 0
959103a6100f
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/GenericMethodRefImplClass.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,81 @@
     1.4 +/*
     1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/*
    1.28 + * @test
    1.29 + * @bug 8009582
    1.30 + * @summary Method reference generic constructor gives: IllegalArgumentException: Invalid lambda deserialization
    1.31 + * @author  Robert Field
    1.32 + * @run main GenericMethodRefImplClass
    1.33 + */
    1.34 +
    1.35 +import java.io.*;
    1.36 +import java.util.*;
    1.37 +
    1.38 +public class GenericMethodRefImplClass {
    1.39 +
    1.40 +    static int assertionCount = 0;
    1.41 +
    1.42 +    static void assertTrue(boolean cond) {
    1.43 +        assertionCount++;
    1.44 +        if (!cond)
    1.45 +            throw new AssertionError();
    1.46 +    }
    1.47 +
    1.48 +    public static void main(String[] args) throws Exception {
    1.49 +        try {
    1.50 +            // Write lambdas out
    1.51 +            ByteArrayOutputStream baos = new ByteArrayOutputStream();
    1.52 +            ObjectOutput out = new ObjectOutputStream(baos);
    1.53 +
    1.54 +            write(out, HashMap::new );
    1.55 +            out.flush();
    1.56 +            out.close();
    1.57 +
    1.58 +            // Read them back
    1.59 +            ByteArrayInputStream bais =
    1.60 +                new ByteArrayInputStream(baos.toByteArray());
    1.61 +            ObjectInputStream in = new ObjectInputStream(bais);
    1.62 +            readIt(in);
    1.63 +            in.close();
    1.64 +        } catch (IOException e) {
    1.65 +            e.printStackTrace();
    1.66 +            throw e;
    1.67 +        }
    1.68 +        assertTrue(assertionCount == 1);
    1.69 +    }
    1.70 +
    1.71 +    static void write(ObjectOutput out, GenericMethodRefImplClassLSI lamb) throws IOException {
    1.72 +        out.writeObject(lamb);
    1.73 +    }
    1.74 +
    1.75 +    static void readIt(ObjectInputStream in)  throws IOException, ClassNotFoundException {
    1.76 +        GenericMethodRefImplClassLSI ls = (GenericMethodRefImplClassLSI) in.readObject();
    1.77 +        Map result = ls.convert();
    1.78 +        assertTrue(result.getClass().getName().equals("java.util.HashMap"));
    1.79 +    }
    1.80 +}
    1.81 +
    1.82 +interface GenericMethodRefImplClassLSI extends Serializable {
    1.83 +    Map convert();
    1.84 +}

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