1/*
2 * Copyright (c) 2002-2016, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2011 SAP AG.  All Rights Reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25class TestMT {
26
27    static boolean loadLib(String libName) {
28        try {
29            System.loadLibrary(libName);
30            System.out.println("Loaded library "+ libName + ".");
31            return true;
32        } catch (SecurityException e) {
33            System.out.println("loadLibrary(\"" + libName + "\") throws: " + e + "\n");
34        } catch (UnsatisfiedLinkError e) {
35            System.out.println("loadLibrary(\"" + libName + "\") throws: " + e + "\n");
36        }
37        return false;
38    }
39
40    public static int counter = 1;
41    static int Runner() {
42        counter = counter * -1;
43        int i = counter;
44        if (counter < 2) counter += Runner();
45        return i;
46    }
47
48    public static int run(String msg) {
49        try {
50            Runner();
51        } catch (StackOverflowError e) {
52            System.out.println(msg + " caught stack overflow error.");
53            return 0;
54        } catch (OutOfMemoryError e) {
55            return 0;
56        }
57        return 2;
58    }
59
60    public static void main(String argv[]) {
61        try {
62            for (int i = 0; i < 20; i++) {
63                Thread t = new DoStackOverflow("SpawnedThread " + i);
64                t.start();
65            }
66            run("Main thread");
67            loadLib("test-rwx");
68            run("Main thread");
69        } catch (Exception e) {
70            System.out.println(e);
71        }
72    }
73
74    static class DoStackOverflow extends Thread {
75        public DoStackOverflow(String name) {
76            super(name);
77        }
78        public void run() {
79            for (int i = 0; i < 10; ++i) {
80                TestMT.run(getName());
81                yield();
82            }
83        }
84    }
85}
86