1 /*
2  * Copyright (c) 2004, 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 /*
25  * @test
26  * @bug 4997227
27  * @summary Calling inheritedChannel() after FileDescriptor.in was closed
28  *          caused an InternalError to be thrown.
29  * @build ClosedStreams
30  * @run main/othervm ClosedStreams
31  */
32 
33 import java.io.FileDescriptor;
34 import java.io.FileInputStream;
35 import java.io.IOException;
36 
37 public class ClosedStreams {
main(String args[])38     public static void main(String args[]) throws IOException {
39 
40         // close FileDescriptor.in
41         (new FileInputStream(FileDescriptor.in)).close();
42 
43         // get the inherited channel
44         if (System.inheritedChannel() != null) {
45             throw new RuntimeException("inherited channel not null - unexpected!");
46         }
47     }
48 }
49