1 /*
2 * Copyright (c) 2016, 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 Creates an anonymous class inside of an anonymous class.
27 * @library /test/lib
28 * @modules java.base/jdk.internal.misc
29 * java.compiler
30 * java.management
31 * @run main NestedUnsafe
32 */
33
34 import java.security.ProtectionDomain;
35 import java.io.InputStream;
36 import java.lang.*;
37 import jdk.test.lib.InMemoryJavaCompiler;
38 import jdk.test.lib.unsafe.UnsafeHelper;
39 import jdk.internal.misc.Unsafe;
40 import static jdk.test.lib.Asserts.*;
41
42 // package p;
43
44 public class NestedUnsafe {
45 // The String concatenation should create the nested anonymous class.
46 static byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass",
47 "public class TestClass { " +
48 " public static void concat(String one, String two) throws Throwable { " +
49 " System.out.println(one + two);" +
50 " } } ");
51
52 public static void main(String args[]) throws Exception {
53 Unsafe unsafe = UnsafeHelper.getUnsafe();
54
55 Class klass = unsafe.defineAnonymousClass(NestedUnsafe.class, klassbuf, new Object[0]);
56 unsafe.ensureClassInitialized(klass);
57 Class[] cArgs = new Class[2];
58 cArgs[0] = String.class;
59 cArgs[1] = String.class;
60 try {
61 klass.getMethod("concat", cArgs).invoke(null, "AA", "BB");
62 } catch (Throwable ex) {
63 throw new RuntimeException("Exception: " + ex.toString());
64 }
65
66 // The anonymous class calls defineAnonymousClass creating a nested anonymous class.
67 byte klassbuf2[] = InMemoryJavaCompiler.compile("TestClass2",
68 "import jdk.internal.misc.Unsafe; " +
69 "public class TestClass2 { " +
70 " public static void doit() throws Throwable { " +
71 " Unsafe unsafe = jdk.internal.misc.Unsafe.getUnsafe(); " +
72 " Class klass2 = unsafe.defineAnonymousClass(TestClass2.class, NestedUnsafe.klassbuf, new Object[0]); " +
73 " unsafe.ensureClassInitialized(klass2); " +
74 " Class[] dArgs = new Class[2]; " +
75 " dArgs[0] = String.class; " +
76 " dArgs[1] = String.class; " +
77 " try { " +
78 " klass2.getMethod(\"concat\", dArgs).invoke(null, \"CC\", \"DD\"); " +
79 " } catch (Throwable ex) { " +
80 " throw new RuntimeException(\"Exception: \" + ex.toString()); " +
81 " } " +
82 "} } ",
83 "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED");
84 Class klass2 = unsafe.defineAnonymousClass(NestedUnsafe.class, klassbuf2, new Object[0]);
85 try {
86 klass2.getMethod("doit").invoke(null);
87 } catch (Throwable ex) {
88 throw new RuntimeException("Exception: " + ex.toString());
89 }
90 }
91 }