1 /*
 2  * Copyright (c) 2022, 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 org.testng.annotations.Test;
25 
26 import java.lang.foreign.SymbolLookup;
27 
28 import static org.testng.Assert.*;
29 
30 /*
31  * @test
32  * @enablePreview
33  * @requires jdk.foreign.linker != "UNSUPPORTED"
34  * @run testng/othervm TestLoaderLookupJNI
35  */
36 public class TestLoaderLookupJNI {
37 
38     static {
39         System.loadLibrary("LoaderLookupInvoker");
40     }
41 
42     @Test
43     void testLoaderLookupJNI() {
44         SymbolLookup loaderLookup = SymbolLookup.loaderLookup();
45         assertTrue(loaderLookup.find("Java_TestLoaderLookupJNI_loaderLookup0").isPresent());
46         // now try calling via JNI
47         loaderLookup = loaderLookup0(); // lookup backed by application loader, so can see same symbols
48         assertTrue(loaderLookup.find("Java_TestLoaderLookupJNI_loaderLookup0").isPresent());
49     }
50 
51     static native SymbolLookup loaderLookup0();
52 }