1 /*
2  * Copyright (c) 2010, 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 7003462
26    @summary Make sure cached Inflater does not get finalized.
27  */
28 
29 import java.io.File;
30 import java.io.InputStream;
31 import java.io.IOException;
32 import java.util.zip.ZipEntry;
33 import java.util.zip.ZipFile;
34 
35 public class FinalizeInflater {
36 
main(String[] args)37     public static void main(String[] args) throws Throwable {
38         try (ZipFile zf = new ZipFile(new File(System.getProperty("test.src", "."), "input.zip")))
39         {
40             ZipEntry ze = zf.getEntry("ReadZip.java");
41             read(zf.getInputStream(ze));
42             System.gc();
43             System.runFinalization();
44             System.gc();
45             // read again
46             read(zf.getInputStream(ze));
47         }
48     }
49 
read(InputStream is)50     private static void read(InputStream is)
51         throws IOException
52     {
53         Wrapper wrapper = new Wrapper(is);
54         byte[] buffer = new byte[32];
55         try {
56             while(is.read(buffer)>0){}
57         } catch (IOException ioe) {
58             ioe.printStackTrace();
59         }
60     }
61 
62     static class Wrapper{
63         InputStream is;
Wrapper(InputStream is)64         public Wrapper(InputStream is) {
65             this.is = is;
66         }
67 
68         @Override
finalize()69         protected void finalize() throws Throwable {
70             super.finalize();
71             is.close();
72         }
73     }
74 }
75