test/jdk/java/io/PipedOutputStream/WriteAfterClose.java - master - githubmirror/galahad

test/jdk/java/io/PipedOutputStream/WriteAfterClose.java

55 строк2 KB

Brian Burkhalter

8367943: PipedOutputStream write(0, 0) successful after close()

06 ноя 2025, 19:01

06 ноя 2025, 19:011321186

/*
 * Copyright (c) 1998, 2025, 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 4143704 8367943
 * @summary Test if write throws exception after reader closes the pipe.
 */

import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;

public class WriteAfterClose {
    public static void main(String argv[]) throws Exception {
        try (PipedInputStream in = new PipedInputStream();
             PipedOutputStream out = new PipedOutputStream(in)) {
            in.close();
            try {
                out.write('a');
                throw new Exception("Should not allow write after close");
            } catch (IOException e) {
            }
        }

        try (PipedInputStream in = new PipedInputStream();
             PipedOutputStream out = new PipedOutputStream(in)) {
            out.close();
            try {
                out.write(new byte[7], 3, 0);
            } catch (IOException e) {
                throw new Exception("Should not fail 0-length write after close");
            }
        }
    }
}