1 /*
2  * Copyright (c) 2005, 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 6304463
26  * @summary Test whether the zip file still can be read after thread is interrupted
27  */
28 
29 import java.io.*;
30 import java.util.zip.*;
31 
32 public class InterruptibleZip {
rtJar()33     private static String rtJar() {
34         String bcp = System.getProperty("sun.boot.class.path");
35         for (String pathElement : bcp.split(File.pathSeparator)) {
36             if (pathElement.endsWith(File.separator + "rt.jar") &&
37                 new File(pathElement).exists()) {
38                 System.out.println("rtJar="+pathElement);
39                 return pathElement;
40             }
41             if (pathElement.endsWith(File.separator + "classes") &&
42                 new File(pathElement).isDirectory()) {
43                 System.out.println("rt.jar not available");
44                 return null;
45             }
46         }
47         throw new Error("Can't find rt.jar or classes directory");
48     }
49 
main(String[] args)50     public static void main(String[] args) throws Exception {
51         /* Interrupt the current thread. The is.read call below
52            should continue reading rt.jar.
53         */
54         String rtJar = rtJar();
55         if (rtJar == null) return;
56         Thread.currentThread().interrupt();
57         ZipFile zf = new ZipFile(rtJar);
58         ZipEntry ze = zf.getEntry("java/lang/Object.class");
59         InputStream is = zf.getInputStream(ze);
60         byte[] buf = new byte[512];
61         int n = is.read(buf);
62         boolean interrupted = Thread.interrupted();
63         System.out.printf("interrupted=%s n=%d name=%s%n",
64                           interrupted, n, ze.getName());
65         if (! interrupted) {
66             throw new Error("Wrong interrupt status");
67         }
68         if (n != buf.length) {
69             throw new Error("Read error");
70         }
71     }
72 }
73