/*
 * Copyright (c) 2017, 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.
 */

import java.io.IOException;
import java.io.OutputStream;

/*
 * @test
 * @bug 4358774
 * @summary Check for expected behavior of OutputStream.nullStream().
 */
public class NullOutputStream {
    public static void main(String[] args) throws IOException {
        int failures = 0;

        OutputStream out = OutputStream.nullStream();
        if (out == null) {
            throw new RuntimeException
                ("OutputStream.nullStream() returned null");
        }

        try {
            out.write(62832);
        } catch (Exception e) {
            System.err.println("Unexpected Exception from write()");
            failures++;
        }
        try {
            out.write(new byte[] {(byte)6}, 0, 1);
        } catch (Exception e) {
            System.err.println("Unexpected Exception from write(b,i,i)");
            failures++;
        }

        out.close();
        try {
            out.write(62832);
            System.err.println("No IOException from write() after closing");
            failures++;
        } catch (IOException e) {
        }
        try {
            out.write(new byte[] {(byte)6}, 0, 1);
            System.err.println("No IOException from write(b,i,i) after closing");
            failures++;
        } catch (IOException e) {
        }

        if (failures != 0) {
            throw new RuntimeException("Test failed");
        }
    }
}