/*

 * Copyright (c) 2003, 2004, 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 4189011 5019303

 * @summary Test opening over 2048 files

 * @run main/timeout=300 ManyFiles

 */

import java.io.*;

import java.util.*;

public class ManyFiles {

    static int count;

    static List files = new ArrayList();

    static List streams = new ArrayList();

    static int NUM_FILES = 2050;

    public static void main(String args[]) throws Exception {

        // Linux does not yet allow opening this many files; Solaris

        // 8 requires an explicit allocation of more file descriptors

        // to succeed. Since this test is written to check for a

        // Windows capability it is much simpler to only run it

        // on that platform.

        String osName = System.getProperty("os.name");

        if (osName.startsWith("Linux")||osName.startsWith("SunOS"))

            return;

        for (int n = 0; n < NUM_FILES; n++) {

            File f = new File("file" + count++);

            files.add(f);

            streams.add(new FileOutputStream(f));

        }

        Iterator i = streams.iterator();

        while(i.hasNext()) {

            FileOutputStream fos = (FileOutputStream)i.next();

            fos.close();

        }

        i = files.iterator();

        while(i.hasNext()) {

            File f = (File)i.next();

            f.delete();

        }

    }

}