1/* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 7167293 27 * @summary FtpURLConnection doesn't close FTP connection when FileNotFoundException is thrown 28 * @library ../www/ftptest/ 29 * @build FtpServer FtpCommandHandler FtpAuthHandler FtpFileSystemHandler 30 * @run main FtpURLConnectionLeak 31 */ 32import java.io.FileNotFoundException; 33import java.io.IOException; 34import java.io.InputStream; 35import java.io.OutputStream; 36import java.net.URL; 37 38public class FtpURLConnectionLeak { 39 40 public static void main(String[] args) throws Exception { 41 FtpServer server = new FtpServer(0); 42 server.setFileSystemHandler(new CustomFileSystemHandler("/")); 43 server.setAuthHandler(new MyAuthHandler()); 44 int port = server.getLocalPort(); 45 server.start(); 46 URL url = new URL("ftp://localhost:" + port + "/filedoesNotExist.txt"); 47 for (int i = 0; i < 3; i++) { 48 try { 49 InputStream stream = url.openStream(); 50 } catch (FileNotFoundException expectedFirstTimeAround) { 51 // should always reach this point since the path does not exist 52 } catch (IOException expected) { 53 System.out.println("caught expected " + expected); 54 int times = 1; 55 do { 56 // give some time to close the connection... 57 System.out.println("sleeping... " + times); 58 Thread.sleep(times * 1000); 59 } while (server.activeClientsCount() > 0 && times++ < 5); 60 61 if (server.activeClientsCount() > 0) { 62 server.killClients(); 63 throw new RuntimeException("URLConnection didn't close the" + 64 " FTP connection on FileNotFoundException"); 65 } 66 } finally { 67 server.terminate(); 68 } 69 } 70 } 71 72 static class CustomFileSystemHandler implements FtpFileSystemHandler { 73 74 private String currentDir; 75 76 public CustomFileSystemHandler(String path) { 77 currentDir = path; 78 } 79 80 @Override 81 public boolean cd(String path) { 82 currentDir = path; 83 return true; 84 } 85 86 @Override 87 public boolean cdUp() { 88 throw new UnsupportedOperationException("Not supported yet."); 89 } 90 91 @Override 92 public String pwd() { 93 throw new UnsupportedOperationException("Not supported yet."); 94 } 95 96 @Override 97 public boolean fileExists(String name) { 98 throw new UnsupportedOperationException("Not supported yet."); 99 } 100 101 @Override 102 public InputStream getFile(String name) { 103 return null; //return null so that server will return 550 File not found. 104 } 105 106 @Override 107 public long getFileSize(String name) { 108 throw new UnsupportedOperationException("Not supported yet."); 109 } 110 111 @Override 112 public InputStream listCurrentDir() { 113 return null; 114 } 115 116 @Override 117 public OutputStream putFile(String name) { 118 throw new UnsupportedOperationException("Not supported yet."); 119 } 120 121 @Override 122 public boolean removeFile(String name) { 123 throw new UnsupportedOperationException("Not supported yet."); 124 } 125 126 @Override 127 public boolean mkdir(String name) { 128 throw new UnsupportedOperationException("Not supported yet."); 129 } 130 131 @Override 132 public boolean rename(String from, String to) { 133 throw new UnsupportedOperationException("Not supported yet."); 134 } 135 136 } 137 138 static class MyAuthHandler implements FtpAuthHandler { 139 140 @Override 141 public int authType() { 142 return 0; 143 } 144 145 @Override 146 public boolean authenticate(String user, String password) { 147 return true; 148 } 149 150 @Override 151 public boolean authenticate(String user, String password, String account) { 152 return true; 153 } 154 } 155} 156