/* * Copyright (c) 2014, 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 8023173 * @summary FileDescriptor should respect append flag */ import java.io.File; import java.io.FileDescriptor; import java.io.FileOutputStream; public class RememberAppend { private static final byte[] bytes = "ABC ".getBytes(); public static void main(String[] args) throws Throwable { File f = File.createTempFile("tmp.file", null); f.deleteOnExit(); try (FileOutputStream fos1 = new FileOutputStream(f.getPath(), true)) { fos1.write(bytes); } try (FileOutputStream fos1 = new FileOutputStream(f.getPath(), true); FileOutputStream fos2 = new FileOutputStream(fos1.getFD())) { fos2.write(bytes); } if (f.length() != 2 * bytes.length) { throw new RuntimeException("Append flag ignored"); } } }