| /* |
| * Copyright (c) 2002, 2017, 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. |
| */ |
| |
| import java.net.SocketException; |
| import java.nio.channels.DatagramChannel; |
| import java.nio.channels.Pipe; |
| import java.nio.channels.ServerSocketChannel; |
| import java.nio.channels.SocketChannel; |
| import java.nio.channels.spi.SelectorProvider; |
| |
| public class Open { |
| |
| static void test1() { |
| for (int i=0; i<11000; i++) { |
| try { |
| SocketChannel sc = SocketChannel.open(); |
| } catch (Exception e) { |
| // Presumably "Too many open files" |
| } |
| } |
| } |
| static void test2() { |
| for (int i=0; i<11000; i++) { |
| try { |
| DatagramChannel sc = DatagramChannel.open(); |
| } catch (Exception e) { |
| // Presumably "Too many open files" |
| } |
| } |
| } |
| static void test3() { |
| SelectorProvider sp = SelectorProvider.provider(); |
| for (int i=0; i<11000; i++) { |
| try { |
| Pipe p = sp.openPipe(); |
| } catch (Exception e) { |
| // Presumably "Too many open files" |
| } |
| } |
| } |
| static void test4() { |
| for (int i=0; i<11000; i++) { |
| try { |
| ServerSocketChannel sc = ServerSocketChannel.open(); |
| } catch (Exception e) { |
| // Presumably "Too many open files" |
| } |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| |
| // Load necessary classes ahead of time |
| DatagramChannel dc = DatagramChannel.open(); |
| Exception se = new SocketException(); |
| SelectorProvider sp = SelectorProvider.provider(); |
| Pipe p = sp.openPipe(); |
| ServerSocketChannel ssc = ServerSocketChannel.open(); |
| |
| test1(); |
| test2(); |
| test3(); |
| test4(); |
| } |
| |
| } |