1/*
2 * Copyright (c) 2014, 2015, 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
24import com.sun.beans.util.Cache;
25
26/*
27 * @test
28 * @bug 8039137
29 * @summary Tests Cache recursion
30 * @author Sergey Malenkov
31 * @modules java.desktop/com.sun.beans.util
32 * @compile -XDignore.symbol.file TestCacheRecursion.java
33 * @run main TestCacheRecursion
34 */
35
36public class TestCacheRecursion {
37    private static boolean ERROR;
38    private static final Cache<Class<?>,Boolean> CACHE
39            = new Cache<Class<?>,Boolean>(Cache.Kind.WEAK, Cache.Kind.STRONG) {
40        @Override
41        public Boolean create(Class<?> type) {
42            if (ERROR) {
43                throw new Error("not initialized");
44            }
45            type = type.getSuperclass();
46            return (type != null) && get(type);
47        }
48    };
49
50    public static void main(String[] args) {
51        CACHE.get(Z.class);
52        ERROR = true;
53        for (Class<?> type = Z.class; type != null; type = type.getSuperclass()) {
54            CACHE.get(type);
55        }
56    }
57
58    private class A {}
59    private class B extends A {}
60    private class C extends B {}
61    private class D extends C {}
62    private class E extends D {}
63    private class F extends E {}
64    private class G extends F {}
65    private class H extends G {}
66    private class I extends H {}
67    private class J extends I {}
68    private class K extends J {}
69    private class L extends K {}
70    private class M extends L {}
71    private class N extends M {}
72    private class O extends N {}
73    private class P extends O {}
74    private class Q extends P {}
75    private class R extends Q {}
76    private class S extends R {}
77    private class T extends S {}
78    private class U extends T {}
79    private class V extends U {}
80    private class W extends V {}
81    private class X extends W {}
82    private class Y extends X {}
83    private class Z extends Y {}
84}
85