test/jdk/java/io/FileDescriptor/RememberAppend.java
author dholmes
Wed, 06 Nov 2019 21:18:42 -0500
changeset 58956 9a0a5e70eeb2
parent 47216 71c04702a3d5
permissions -rw-r--r--
8233454: Test fails with assert(!is_init_completed(), "should only happen during init") after JDK-8229516 Reviewed-by: jiefu, dcubed
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/*
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 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 8023173
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 * @summary FileDescriptor should respect append flag
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 */
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import java.io.File;
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import java.io.FileDescriptor;
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import java.io.FileOutputStream;
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public class RememberAppend {
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    private static final byte[] bytes = "ABC ".getBytes();
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    public static void main(String[] args) throws Throwable {
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        File f = File.createTempFile("tmp.file", null);
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        f.deleteOnExit();
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        try (FileOutputStream fos1 = new FileOutputStream(f.getPath(), true)) {
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            fos1.write(bytes);
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        }
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        try (FileOutputStream fos1 = new FileOutputStream(f.getPath(), true);
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             FileOutputStream fos2 = new FileOutputStream(fos1.getFD())) {
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            fos2.write(bytes);
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        }
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        if (f.length() != 2 * bytes.length) {
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            throw new RuntimeException("Append flag ignored");
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        }
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    }
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}