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 package p1;
25 
26 import p2.T3;
27 
28 import java.lang.invoke.MethodHandle;
29 import java.lang.invoke.MethodHandles;
30 import java.lang.invoke.MethodHandles.Lookup;
31 import java.lang.invoke.MethodType;
32 import java.util.concurrent.Callable;
33 
34 class T1 {
m1()35     protected        void m1() {}
m2()36     protected static void m2() {}
37 }
38 
39 public class T2 extends T1 {
main(String[] args)40     public static void main(String[] args) throws Throwable {
41         Lookup LOOKUP = T3.lookup();
42         Class<IllegalAccessException> IAE = IllegalAccessException.class;
43 
44         assertFailure(IAE, () -> LOOKUP.findVirtual(T1.class, "m1", MethodType.methodType(void.class)));
45         assertFailure(IAE, () -> LOOKUP.findStatic(T1.class, "m2", MethodType.methodType(void.class)));
46 
47         assertSuccess(() -> LOOKUP.findVirtual(T2.class, "m1", MethodType.methodType(void.class)));
48         assertSuccess(() -> LOOKUP.findVirtual(T3.class, "m1", MethodType.methodType(void.class)));
49 
50         assertSuccess(() -> LOOKUP.findStatic(T2.class, "m2", MethodType.methodType(void.class)));
51         assertSuccess(() -> LOOKUP.findStatic(T3.class, "m2", MethodType.methodType(void.class)));
52 
53         assertFailure(IAE, () -> LOOKUP.unreflect(T1.class.getDeclaredMethod("m1")));
54         assertFailure(IAE, () -> LOOKUP.unreflect(T1.class.getDeclaredMethod("m2")));
55 
56         System.out.println("TEST PASSED");
57     }
58 
assertFailure(Class<? extends Throwable> expectedError, Callable r)59     public static void assertFailure(Class<? extends Throwable> expectedError, Callable r) {
60         try {
61             r.call();
62         } catch(Throwable e) {
63             if (expectedError.isAssignableFrom(e.getClass())) {
64                 return; // expected error
65             } else {
66                 throw new Error("Unexpected error type: "+e.getClass()+"; expected type: "+expectedError, e);
67             }
68         }
69         throw new Error("No error");
70     }
71 
assertSuccess(Callable r)72     public static void assertSuccess(Callable r) {
73         try {
74             r.call();
75         } catch(Throwable e) {
76             throw new Error("Unexpected error", e);
77         }
78     }
79 }
80