95 lines
3.4 KiB
Java
95 lines
3.4 KiB
Java
/*
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* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 8038491
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* @summary Crash in ZipFile.read() when ZipFileInputStream is shared between threads
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* @library /test/lib
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* @build jdk.test.lib.Platform
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* jdk.test.lib.util.FileUtils
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* @run main MultiThreadedReadTest
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* @key randomness
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*/
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.InputStream;
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import java.nio.file.Paths;
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import java.util.Random;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import java.util.zip.ZipOutputStream;
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import jdk.test.lib.util.FileUtils;
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public class MultiThreadedReadTest extends Thread {
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private static final int NUM_THREADS = 10;
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private static final String ZIPFILE_NAME = "large.zip";
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private static final String ZIPENTRY_NAME = "random.txt";
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private static InputStream is = null;
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public static void main(String args[]) throws Exception {
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createZipFile();
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try (ZipFile zf = new ZipFile(new File(ZIPFILE_NAME))) {
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is = zf.getInputStream(zf.getEntry(ZIPENTRY_NAME));
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Thread[] threadArray = new Thread[NUM_THREADS];
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for (int i = 0; i < threadArray.length; i++) {
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threadArray[i] = new MultiThreadedReadTest();
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}
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for (int i = 0; i < threadArray.length; i++) {
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threadArray[i].start();
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}
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for (int i = 0; i < threadArray.length; i++) {
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threadArray[i].join();
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}
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} finally {
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FileUtils.deleteFileIfExistsWithRetry(Paths.get(ZIPFILE_NAME));
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}
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}
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private static void createZipFile() throws Exception {
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try (ZipOutputStream zos =
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new ZipOutputStream(new FileOutputStream(ZIPFILE_NAME))) {
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zos.putNextEntry(new ZipEntry(ZIPENTRY_NAME));
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StringBuilder sb = new StringBuilder();
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Random rnd = new Random();
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for(int i = 0; i < 1000; i++) {
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// append some random string for ZipEntry
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sb.append(Long.toString(rnd.nextLong()));
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}
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byte[] b = sb.toString().getBytes();
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zos.write(b, 0, b.length);
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}
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}
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@Override
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public void run() {
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try {
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while (is.read() != -1) { }
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} catch (Exception e) {
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// Swallow any Exceptions (which are expected) - we're only interested in the crash
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}
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}
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}
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