langtools/test/tools/javac/T8004969.java
author katleman
Thu, 21 Aug 2014 14:16:14 -0700
changeset 25878 6d561031123e
parent 16314 f1ece0e4178b
permissions -rw-r--r--
Added tag jdk9-b27 for changeset 98ce0879ab4c
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/*
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 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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@test
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@bug 8004969
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@summary Lambda deserialization
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*/
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import java.io.*;
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public class T8004969 implements Serializable {
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    static int assertionCount = 0;
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    static void assertTrue(boolean cond) {
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        assertionCount++;
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        if (!cond)
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            throw new AssertionError();
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    }
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    static String mm(String s) { return "mref" + s; }
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    String aField = "aF";
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    public static void main(String[] args) throws Exception {
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        (new T8004969()).doit();
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    }
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    public void doit() throws Exception {
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        String aLocal = "aL";
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        int anInt = 99;
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        try {
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            // Write lambdas out
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            ByteArrayOutputStream baos = new ByteArrayOutputStream();
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            ObjectOutput out = new ObjectOutputStream(baos);
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            write(out, z -> "[" + z + "]" );
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            write(out, z -> { String x = z + z; return x + x; } );
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            write(out, T8004969::mm );
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            write(out, z -> (new LSI() { public String convert(String x) { return "*"+x; }} ).convert(z) );
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            write(out, z -> aField + z );
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            write(out, z -> aLocal + z );
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            write(out, z -> z + anInt );
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            out.flush();
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            out.close();
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            // Read them back
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            ByteArrayInputStream bais =
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                new ByteArrayInputStream(baos.toByteArray());
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            ObjectInputStream in = new ObjectInputStream(bais);
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            readAssert(in, "[X]");
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            readAssert(in, "XXXX");
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            readAssert(in, "mrefX");
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            readAssert(in, "*X");
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            readAssert(in, "aFX");
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            readAssert(in, "aLX");
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            readAssert(in, "X99");
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            in.close();
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        } catch (IOException e) {
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            e.printStackTrace();
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            throw e;
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        }
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        assertTrue(assertionCount == 7);
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    }
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    static void write(ObjectOutput out, LSI lamb) throws IOException {
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        out.writeObject(lamb);
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    }
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    static void readAssert(ObjectInputStream in, String expected)  throws IOException, ClassNotFoundException {
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        LSI ls = (LSI) in.readObject();
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        String result = ls.convert("X");
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        System.out.printf("Result: %s\n", result);
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        assertTrue(result.equals(expected));
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    }
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}
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interface LSI extends Serializable {
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    String convert(String x);
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}