/*

 * 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.

 *

 */

/**

 * @test

 * @bug  6219755

 * @summary Write end loops infinitely when the

 *          buffer is full and the read end has closed.

 */

import java.io.*;

public class WriterLoop extends Thread {

    static PipedOutputStream out;

    static PipedInputStream  in;

    public void run() {

        try {

            System.out.println("Writer started.");

            // without the fix, this test will hang at this point,

            // i.e inside the call to write()

            out.write(new byte[64*1024]);

        } catch (Throwable e) {

            // with the fix an IOException is caught

            System.out.println("Writer exception:");

            e.printStackTrace();

        } finally {

            System.out.println("Writer done.");

        }

    }

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

        in = new PipedInputStream();

        out = new PipedOutputStream(in);

        WriterLoop writer = new WriterLoop();

        writer.start();

        try {

            System.out.println("Reader reading...");

            in.read(new byte[2048]);

            System.out.println("Reader closing stream...");

            in.close();

            System.out.println("Reader sleeping 3 seconds...");

            Thread.sleep(3000);

        } catch (Throwable e) {

            System.out.println("Reader exception:");

            e.printStackTrace();

        } finally {

            System.out.println("Active threads:");

            Thread[] threads = new Thread[Thread.activeCount()];

            Thread.enumerate(threads);

            for (int i = 0; i < threads.length; i++) {

                System.out.println("  " + threads[i]);

            }

            System.out.println("Waiting for writer...");

            writer.join();

            System.out.println("Done.");

        }

    }

}