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
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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  *
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23 
24 /*
25  * @test
26  * @bug 8032704
27  * @summary Issues with lib perm in Lambda
28  */
29 
30 import java.io.Closeable;
31 import java.lang.invoke.LambdaMetafactory;
32 import java.lang.invoke.LambdaConversionException;
33 import java.lang.invoke.MethodHandle;
34 import java.lang.invoke.MethodHandles;
35 import java.lang.invoke.MethodType;
36 
37 public class T8032704 {
38 
here()39     public static void here() {}
40     static MethodHandle h;
mt(Class<?> k)41     private static MethodType mt(Class<?> k) { return MethodType.methodType(k); }
mf(MethodHandles.Lookup l)42     private static boolean mf(MethodHandles.Lookup l) {
43         try {
44             LambdaMetafactory.metafactory(l, "close",
45                 mt(Closeable.class),mt(void.class),h,mt(void.class));
46         } catch(LambdaConversionException e) {
47             return true;
48         }
49         return false;
50     }
51 
main(String[] args)52     public static void main(String[] args) throws Throwable {
53         MethodHandles.Lookup ll = MethodHandles.lookup();
54         h = ll.findStatic(T8032704.class, "here", mt(void.class));
55         if (mf(ll)) throw new AssertionError("Error: Should work");
56         if (!mf(MethodHandles.publicLookup())) throw new AssertionError("Error: Should fail - public");
57         if (!mf(ll.in(T8032704other.class))) throw new AssertionError("Error: Should fail - other");
58         if (!mf(ll.in(Thread.class))) throw new AssertionError("Error: Should fail - Thread");
59     }
60 }
61 
62 class T8032704other {}
63