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comparison test/runtime/lambda-features/TestInterfaceInit.java @ 20576:90257dfad6e3

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8043275: 8u40 backport: Fix interface initialization for default methods. Reviewed-by: dcubed, coleenp
author acorn
date Fri, 24 Oct 2014 12:29:08 -0700
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20570:1bd99e1dc168 20576:90257dfad6e3
1 /*
2 * Copyright (c) 2014, 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 /*
26 * @test
27 * @bug 8034275
28 * @summary [JDK 8u40] Test interface initialization: only for interfaces declaring default methods
29 * @run main TestInterfaceInit
30 */
31 import java.util.List;
32 import java.util.Arrays;
33 import java.util.ArrayList;
34
35 public class TestInterfaceInit {
36
37 static List<Class<?>> cInitOrder = new ArrayList<>();
38
39 // Declares a default method and initializes
40 interface I {
41 boolean v = TestInterfaceInit.out(I.class);
42 default void x() {}
43 }
44
45 // Declares a default method and initializes
46 interface J extends I {
47 boolean v = TestInterfaceInit.out(J.class);
48 default void x() {}
49 }
50 // No default method, does not initialize
51 interface JN extends J {
52 boolean v = TestInterfaceInit.out(JN.class);
53 }
54
55 // Declares a default method and initializes
56 interface K extends I {
57 boolean v = TestInterfaceInit.out(K.class);
58 default void x() {}
59 }
60
61 // No default method, does not initialize
62 interface KN extends K {
63 boolean v = TestInterfaceInit.out(KN.class);
64 }
65
66 interface L extends JN, KN {
67 boolean v = TestInterfaceInit.out(L.class);
68 default void x() {}
69 }
70
71 public static void main(String[] args) {
72 // Trigger initialization
73 boolean v = L.v;
74
75 List<Class<?>> expectedCInitOrder = Arrays.asList(I.class,J.class,K.class,L.class);
76 if (!cInitOrder.equals(expectedCInitOrder)) {
77 throw new RuntimeException(String.format("Class initialization array %s not equal to expected array %s", cInitOrder, expectedCInitOrder));
78 }
79 }
80
81 static boolean out(Class c) {
82 System.out.println("#: initializing " + c.getName());
83 cInitOrder.add(c);
84 return true;
85 }
86
87 }