NestedLambdaGenerics.java revision 3031:286fc9270404 
1/*
2 * Copyright (c) 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25
26 /*
27  * @test
28  * @bug 8078093
29  * @summary Exponential performance regression Java 8 compiler compared to Java 7 compiler
30  * @compile NestedLambdaGenerics.java
31  */
32import java.util.concurrent.Callable;
33
34class NestedLambdaGenerics {
35    void test() {
36        m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null,
37                () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null,
38                () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null,
39                () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null,
40                () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null, () -> m(null,
41                (Callable<String>)null)))))))))))))))))))))))))))))));
42    }
43    static class A0 { }
44    static class A1 { }
45    static class A2 { }
46    static class A3 { }
47    static class A4 { }
48    <Z extends A0> Z m(A0 t, Callable<Z> ct) { return null; }
49    <Z extends A1> Z m(A1 t, Callable<Z> ct) { return null; }
50    <Z extends A2> Z m(A2 t, Callable<Z> ct) { return null; }
51    <Z extends A3> Z m(A3 t, Callable<Z> ct) { return null; }
52    <Z extends A4> Z m(A4 t, Callable<Z> ct) { return null; }
53    <Z> Z m(Object o, Callable<Z> co) { return null; }
54}
55