1 /*
2 * Copyright (c) 2015, 2017, 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 /* @test
25 * @bug 6907252
26 * @summary ZipFileInputStream Not Thread-Safe
27 * @library /test/lib
28 * @run main ZipEntryFreeTest
29 */
30
31 import java.io.*;
32 import java.nio.file.Paths;
33 import java.util.Random;
34 import java.util.Timer;
35 import java.util.TimerTask;
36 import java.util.zip.*;
37 import jdk.test.lib.util.FileUtils;
38
39 public class ZipEntryFreeTest extends Thread {
40
41 private static final int NUM_THREADS = 5;
42 private static final int TEST_ITERATIONS = 5;
43 private static final String ZIPFILE_NAME = "large.zip";
44 private static final String ZIPENTRY_NAME = "random.txt";
45 private static InputStream is = null;
46 final Timer timer = new Timer();
47
48 public static void main(String args[]) throws Exception {
49 createZipFile();
50 try {
51 for (int i = 0; i < TEST_ITERATIONS; i++) {
52 runTest();
53 }
54 } finally {
55 FileUtils.deleteFileIfExistsWithRetry(Paths.get(ZIPFILE_NAME));
56 }
57 }
58
59 private static void runTest() throws Exception {
60 try (ZipFile zf = new ZipFile(new File(ZIPFILE_NAME))) {
61 is = zf.getInputStream(zf.getEntry(ZIPENTRY_NAME + "_0"));
62 Thread[] threadArray = new Thread[NUM_THREADS];
63 for (int i = 0; i < threadArray.length; i++) {
64 threadArray[i] = new ZipEntryFreeTest();
65 }
66 for (int i = 0; i < threadArray.length; i++) {
67 threadArray[i].start();
68 }
69 for (int i = 0; i < threadArray.length; i++) {
70 threadArray[i].join();
71 }
72 }
73 }
74
75 private static void createZipFile() throws Exception {
76 Random rnd = new Random(1000L);
77 byte[] contents = new byte[2_000_000];
78 ZipEntry ze = null;
79
80 try (ZipOutputStream zos =
81 new ZipOutputStream(new FileOutputStream(ZIPFILE_NAME))) {
82 // uncompressed mode seemed to tickle the crash
83 zos.setMethod(ZipOutputStream.STORED);
84 for (int ze_count = 0; ze_count < 10; ze_count++) {
85 rnd.nextBytes(contents);
86 ze = createZipEntry(contents, ze_count);
87 zos.putNextEntry(ze);
88 zos.write(contents, 0, contents.length);
89 }
90 zos.flush();
91 }
92 }
93
94 private static ZipEntry createZipEntry(byte[] b, int i) {
95 ZipEntry ze = new ZipEntry(ZIPENTRY_NAME + "_" + i);
96 ze.setCompressedSize(b.length);
97 ze.setSize(b.length);
98 CRC32 crc = new CRC32();
99 crc.update(b);
100 ze.setCrc(crc.getValue());
101 return ze;
102 }
103
104 @Override
105 public void run() {
106 try {
107 int iteration = 0;
108 TimerTask tt = (new TimerTask() {
109 @Override
110 public void run() {
111 try {
112 is.close();
113 } catch (Exception ex) {
114 ex.printStackTrace(System.out);
115 }
116 }
117 });
118 timer.schedule(tt, 50);
119 while (is.read() != -1 && iteration++ < 1_000) { }
120 } catch (ZipException ze) {
121 // ZipException now expected instead of ZIP_Read crash
122 System.out.println(ze);
123 } catch (Exception e) {
124 throw new RuntimeException(e);
125 } finally {
126 timer.cancel();
127 }
128 }
129 }