1 /*
 2  * Copyright (c) 2022, 2023, 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  * @test
26  * @enablePreview
27  * @library ../ /test/lib
28  * @modules java.base/jdk.internal.ref java.base/jdk.internal.foreign
29  * @requires jdk.foreign.linker != "UNSUPPORTED"
30  * @run testng/othervm --enable-native-access=ALL-UNNAMED TestDontRelease
31  */
32 
33 import jdk.internal.foreign.MemorySessionImpl;
34 import org.testng.annotations.Test;
35 
36 import java.lang.foreign.Arena;
37 import java.lang.foreign.FunctionDescriptor;
38 import java.lang.foreign.MemorySegment;
39 import java.lang.invoke.MethodHandle;
40 
41 import static java.lang.foreign.ValueLayout.ADDRESS;
42 import static java.lang.foreign.ValueLayout.JAVA_INT;
43 import static org.testng.Assert.assertTrue;
44 
45 public class TestDontRelease extends NativeTestHelper  {
46 
47     static {
48         System.loadLibrary("DontRelease");
49     }
50 
51     @Test
52     public void testDontRelease() {
53         MethodHandle handle = downcallHandle("test_ptr", FunctionDescriptor.ofVoid(ADDRESS));
54         try (Arena arena = Arena.ofConfined()) {
55             MemorySegment segment = arena.allocate(JAVA_INT);
56             ((MemorySessionImpl)arena.scope()).whileAlive(() -> {
57                 Thread t = new Thread(() -> {
58                     try {
59                         // acquire of the segment should fail here,
60                         // due to wrong thread
61                         handle.invokeExact(segment);
62                     } catch (Throwable e) {
63                         // catch the exception.
64                         assertTrue(e instanceof WrongThreadException);
65                         assertTrue(e.getMessage().matches(".*Attempted access outside owning thread.*"));
66                     }
67                 });
68                 t.start();
69                 try {
70                     t.join();
71                 } catch (InterruptedException e) {
72                     throw new RuntimeException(e);
73                 }
74 
75                 // the downcall above should not have called release on the session
76                 // so doing it here should succeed without error
77             });
78         }
79     }
80 }