071bd521bc
Reviewed-by: alanb, bchristi, dcubed, dfuchs, eosterlund, erikj, glaubitz, ihse, iignatyev, jjiang, kbarrett, ksrini, kvn, naoto, prr, rriggs, serb, sspitsyn, stefank, tschatzl, valeriep, weijun, weijun
68 lines
2.3 KiB
Java
68 lines
2.3 KiB
Java
/*
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* Copyright (c) 2003, 2020, 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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/* @test
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* @bug 4189011 5019303
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* @summary Test opening over 2048 files
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* @run main/timeout=300 ManyFiles
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*/
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import java.io.*;
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import java.util.*;
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public class ManyFiles {
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static int count;
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static List files = new ArrayList();
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static List streams = new ArrayList();
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static int NUM_FILES = 2050;
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public static void main(String args[]) throws Exception {
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// Linux does not yet allow opening this many files; Solaris
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// 8 requires an explicit allocation of more file descriptors
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// to succeed. Since this test is written to check for a
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// Windows capability it is much simpler to only run it
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// on that platform.
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String osName = System.getProperty("os.name");
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if (osName.startsWith("Linux"))
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return;
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for (int n = 0; n < NUM_FILES; n++) {
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File f = new File("file" + count++);
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files.add(f);
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streams.add(new FileOutputStream(f));
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}
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Iterator i = streams.iterator();
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while(i.hasNext()) {
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FileOutputStream fos = (FileOutputStream)i.next();
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fos.close();
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}
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i = files.iterator();
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while(i.hasNext()) {
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File f = (File)i.next();
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f.delete();
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}
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}
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}
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