/*

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

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

 *

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

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

 * published by the Free Software Foundation.

 *

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

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

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

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

 * accompanied this code).

 *

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

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

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

 *

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

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

 * questions.

 */

/*

@test

@bug 8009742

@summary Bad method name: Serialized lambda in a constructor or class init

*/

import java.io.*;

import java.lang.reflect.Method;

public class SerializedLambdaInInit {

    static int assertionCount = 0;

    static void assertTrue(boolean cond) {

        assertionCount++;

        if (!cond)

            throw new AssertionError();

    }

    static LSI cvisi = z -> "[" + z + "]";

    static LSI cisi;

    static {

        cisi = z -> z + z;

    }

    LSI ivsi = z -> "blah";

    LSI iisi;

    SerializedLambdaInInit() {

        iisi = z -> "*" + z;

    }

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

        try {

            // Write lambdas out

            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            ObjectOutput out = new ObjectOutputStream(baos);

            SerializedLambdaInInit slii = new SerializedLambdaInInit();

            write(out, cvisi );

            write(out, cisi );

            write(out, slii.ivsi );

            write(out, slii.iisi );

            out.flush();

            out.close();

            // Read them back

            ByteArrayInputStream bais =

                new ByteArrayInputStream(baos.toByteArray());

            ObjectInputStream in = new ObjectInputStream(bais);

            readAssert(in, "[X]");

            readAssert(in, "XX");

            readAssert(in, "blah");

            readAssert(in, "*X");

            in.close();

            // Reflectively test for valid method names

            for (Method meth : slii.getClass().getDeclaredMethods()) {

                checkIdentifier(meth.getName());

            }

        } catch (IOException e) {

            e.printStackTrace();

            throw e;

        }

        assertTrue(assertionCount == 4);

    }

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

        out.writeObject(lamb);

    }

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

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

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

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

        assertTrue(result.equals(expected));

    }

    public static void checkIdentifier(String str) throws Exception {

        // null and zero length identifers will throw their own exceptions

        char[] chars = str.toCharArray();

        if (!Character.isJavaIdentifierStart(chars[0])) {

            throw new IllegalArgumentException(str + ": bad identifier start character: '" + chars[0] + "'");

        }

        for (char ch : chars) {

            if (!Character.isJavaIdentifierPart(ch)) {

                throw new IllegalArgumentException(str + ": bad identifier character: '" + ch + "'");

            }

        }

    }

}