1 /*

     2  * Copyright 2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any 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 {

    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 

    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 }