| /* |
| * Copyright (c) 2014, 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 8038491 |
| * @summary Crash in ZipFile.read() when ZipFileInputStream is shared between threads |
| * @library /lib/testlibrary |
| * @build jdk.testlibrary.FileUtils |
| * @run main MultiThreadedReadTest |
| * @key randomness |
| */ |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.InputStream; |
| import java.nio.file.Paths; |
| import java.util.Random; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| import java.util.zip.ZipOutputStream; |
| import jdk.testlibrary.FileUtils; |
| |
| public class MultiThreadedReadTest extends Thread { |
| |
| private static final int NUM_THREADS = 10; |
| private static final String ZIPFILE_NAME = "large.zip"; |
| private static final String ZIPENTRY_NAME = "random.txt"; |
| private static InputStream is = null; |
| |
| public static void main(String args[]) throws Exception { |
| createZipFile(); |
| try (ZipFile zf = new ZipFile(new File(ZIPFILE_NAME))) { |
| is = zf.getInputStream(zf.getEntry(ZIPENTRY_NAME)); |
| Thread[] threadArray = new Thread[NUM_THREADS]; |
| for (int i = 0; i < threadArray.length; i++) { |
| threadArray[i] = new MultiThreadedReadTest(); |
| } |
| for (int i = 0; i < threadArray.length; i++) { |
| threadArray[i].start(); |
| } |
| for (int i = 0; i < threadArray.length; i++) { |
| threadArray[i].join(); |
| } |
| } finally { |
| FileUtils.deleteFileIfExistsWithRetry(Paths.get(ZIPFILE_NAME)); |
| } |
| } |
| |
| private static void createZipFile() throws Exception { |
| try (ZipOutputStream zos = |
| new ZipOutputStream(new FileOutputStream(ZIPFILE_NAME))) { |
| |
| zos.putNextEntry(new ZipEntry(ZIPENTRY_NAME)); |
| StringBuilder sb = new StringBuilder(); |
| Random rnd = new Random(); |
| for(int i = 0; i < 1000; i++) { |
| // append some random string for ZipEntry |
| sb.append(Long.toString(rnd.nextLong())); |
| } |
| byte[] b = sb.toString().getBytes(); |
| zos.write(b, 0, b.length); |
| } |
| } |
| |
| @Override |
| public void run() { |
| try { |
| while (is.read() != -1) { } |
| } catch (Exception e) { |
| // Swallow any Exceptions (which are expected) - we're only interested in the crash |
| } |
| } |
| } |