1 /*
 2  * Copyright (c) 2021, 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 import jdk.incubator.foreign.MemoryAddress;
25 import jdk.incubator.foreign.MemorySegment;
26 import jdk.incubator.foreign.ResourceScope;
27 import org.testng.annotations.Test;
28 
29 import java.lang.invoke.MethodHandles;
30 import java.lang.invoke.MethodType;
31 import java.lang.reflect.Method;
32 import java.lang.reflect.InvocationTargetException;
33 
34 /*
35  * @test
36  * @run testng TestRestricted
37  */
38 public class TestRestricted {
39     @Test(expectedExceptions = InvocationTargetException.class)
40     public void testReflection() throws Throwable {
41         Method method = MemorySegment.class.getDeclaredMethod("globalNativeSegment");
42         method.invoke(null);
43     }
44 
45     @Test(expectedExceptions = IllegalCallerException.class)
46     public void testInvoke() throws Throwable {
47         var mh = MethodHandles.lookup().findStatic(MemorySegment.class,
48                 "globalNativeSegment", MethodType.methodType(MemorySegment.class));
49         var seg = (MemorySegment)mh.invokeExact();
50     }
51 
52     @Test(expectedExceptions = IllegalCallerException.class)
53     public void testDirectAccess() throws Throwable {
54         MemorySegment.globalNativeSegment();
55     }
56 
57     @Test(expectedExceptions = InvocationTargetException.class)
58     public void testReflection2() throws Throwable {
59         Method method = MemoryAddress.class.getDeclaredMethod("asSegment", long.class, ResourceScope.class);
60         method.invoke(MemoryAddress.NULL, 4000L, ResourceScope.globalScope());
61     }
62 
63     @Test(expectedExceptions = IllegalCallerException.class)
64     public void testInvoke2() throws Throwable {
65         var mh = MethodHandles.lookup().findVirtual(MemoryAddress.class, "asSegment",
66             MethodType.methodType(MemorySegment.class, long.class, ResourceScope.class));
67         var seg = (MemorySegment)mh.invokeExact(MemoryAddress.NULL, 4000L, ResourceScope.globalScope());
68     }
69 
70     @Test(expectedExceptions = IllegalCallerException.class)
71     public void testDirectAccess2() throws Throwable {
72         MemoryAddress.NULL.asSegment(4000L, ResourceScope.globalScope());
73     }
74 }