/*

 * 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 7129312

 * @summary BufferedInputStream calculates negative array size with large

 *          streams and mark

 * @library /lib/testlibrary

 * @run main/othervm LargeCopyWithMark

 */

import java.io.BufferedInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import static jdk.testlibrary.ProcessTools.*;

public class LargeCopyWithMark {

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

        if (! System.getProperty("os.arch").contains("64")) {

            System.out.println("Test runs on 64 bit platforms");

            return;

        }

        ProcessBuilder pb = createJavaProcessBuilder("-Xmx4G",

                "-ea:LargeCopyWithMark$Child",

                "LargeCopyWithMark$Child");

        int res = pb.inheritIO().start().waitFor();

        if (res != 0) {

            throw new AssertionError("Test failed: exit code = " + res);

        }

    }

    public static class Child {

        static final int BUFF_SIZE = 8192;

        static final int BIS_BUFF_SIZE = Integer.MAX_VALUE / 2 + 100;

        static final long BYTES_TO_COPY = 2L * Integer.MAX_VALUE;

        static {

            assert BIS_BUFF_SIZE * 2 < 0 : "doubling must overflow";

        }

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

            byte[] buff = new byte[BUFF_SIZE];

            try (InputStream myis = new MyInputStream(BYTES_TO_COPY);

                 InputStream bis = new BufferedInputStream(myis, BIS_BUFF_SIZE);

                 OutputStream myos = new MyOutputStream()) {

                // will require a buffer bigger than BIS_BUFF_SIZE

                bis.mark(BIS_BUFF_SIZE + 100);

                for (;;) {

                    int count = bis.read(buff, 0, BUFF_SIZE);

                    if (count == -1)

                        break;

                    myos.write(buff, 0, count);

                }

            } catch (java.lang.NegativeArraySizeException e) {

                e.printStackTrace();

                System.exit(11);

            } catch (Exception e) {

                e.printStackTrace();

            }

        }

    }

}

class MyInputStream extends InputStream {

    private long bytesLeft;

    public MyInputStream(long bytesLeft) {

        this.bytesLeft = bytesLeft;

    }

    @Override public int read() throws IOException {

        return 0;

    }

    @Override public int read(byte[] b) throws IOException {

        return read(b, 0, b.length);

    }

    @Override public int read(byte[] b, int off, int len) throws IOException {

        if (bytesLeft <= 0)

            return -1;

        long result = Math.min(bytesLeft, (long)len);

        bytesLeft -= result;

        return (int)result;

    }

    @Override public int available() throws IOException {

        return (bytesLeft > 0) ? 1 : 0;

    }

}

class MyOutputStream extends OutputStream {

    @Override public void write(int b) throws IOException {}

    @Override public void write(byte[] b) throws IOException {}

    @Override public void write(byte[] b, int off, int len) throws IOException {}

}