1 /*
2 * Copyright (c) 2019, 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 * @build LambdaNestedInnerTest
27 * @run testng/othervm p.LambdaNestedInnerTest
28 * @summary define a lambda proxy class whose target class has an invalid
29 * nest membership
30 */
31
32 package p;
33
34 import java.io.File;
35 import java.io.IOException;
36 import java.net.URL;
37 import java.net.URLClassLoader;
38 import java.nio.file.Files;
39 import java.nio.file.Path;
40 import java.nio.file.Paths;
41 import java.util.Arrays;
42 import java.util.Set;
43 import java.util.stream.Collectors;
44
45 import org.testng.annotations.BeforeTest;
46 import org.testng.annotations.Test;
47
48 import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
49 import static org.testng.Assert.*;
50
51 public class LambdaNestedInnerTest {
52 private static final String INNER_CLASSNAME = "p.LambdaNestedInnerTest$Inner";
53 private static final String DIR = "missingOuter";
54 public static class Inner implements Runnable {
55 // generate lambda proxy class
56 private Runnable lambda1 = this::doit;
57
58 @Override
59 public void run() {
60 // validate the lambda proxy class
61 Class<?> lambdaProxyClass = lambda1.getClass();
62 assertTrue(lambdaProxyClass.isHiddenClass());
63 System.out.format("%s nest host %s nestmate of Inner class %s%n",
64 lambdaProxyClass, lambdaProxyClass.getNestHost(),
65 lambdaProxyClass.isNestmateOf(Inner.class));
66 assertTrue(lambdaProxyClass.getNestHost() == Inner.class.getNestHost());
67 assertTrue(Arrays.equals(lambdaProxyClass.getNestMembers(), Inner.class.getNestMembers()));
68 assertTrue(lambdaProxyClass.isNestmateOf(Inner.class));
69 lambda1.run();
70 }
71
72 // testng may not be visible to this class
73 private static void assertTrue(boolean x) {
74 if (!x) {
75 throw new AssertionError("expected true but found false");
76 }
77 }
78
79 private void doit() {
80 }
81 }
82
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1 /*
2 * Copyright (c) 2019, 2020, 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 * @summary define a lambda proxy class whose target class has an invalid
27 * nest membership
28 * @run testng/othervm p.LambdaNestedInnerTest
29 */
30
31 package p;
32
33 import java.io.File;
34 import java.io.IOException;
35 import java.net.URL;
36 import java.net.URLClassLoader;
37 import java.nio.file.Files;
38 import java.nio.file.Path;
39 import java.nio.file.Paths;
40 import java.util.Arrays;
41 import java.util.Set;
42 import java.util.stream.Collectors;
43
44 import org.testng.annotations.BeforeTest;
45 import org.testng.annotations.Test;
46
47 import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
48 import static org.testng.Assert.*;
49
50 public class LambdaNestedInnerTest {
51 private static final String INNER_CLASSNAME = "p.LambdaNestedInnerTest$Inner";
52 private static final String DIR = "missingOuter";
53 public static class Inner implements Runnable {
54 // generate lambda proxy class
55 private Runnable lambda1 = this::doit;
56
57 @Override
58 public void run() {
59 // validate the lambda proxy class
60 Class<?> lambdaProxyClass = lambda1.getClass();
61 assertTrue(lambdaProxyClass.isHidden());
62 System.out.format("%s nest host %s nestmate of Inner class %s%n",
63 lambdaProxyClass, lambdaProxyClass.getNestHost(),
64 lambdaProxyClass.isNestmateOf(Inner.class));
65 assertTrue(lambdaProxyClass.getNestHost() == Inner.class.getNestHost());
66 assertTrue(Arrays.equals(lambdaProxyClass.getNestMembers(), Inner.class.getNestMembers()));
67 assertTrue(lambdaProxyClass.isNestmateOf(Inner.class));
68 lambda1.run();
69 }
70
71 // testng may not be visible to this class
72 private static void assertTrue(boolean x) {
73 if (!x) {
74 throw new AssertionError("expected true but found false");
75 }
76 }
77
78 private void doit() {
79 }
80 }
81
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