| /* |
| * 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(); |
| } |
| } |
| } |