1 /*
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 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  * @bug 8228596
27  * @summary Test redefining a class with a condy in its constant pool
28  * @requires vm.jvmti
29  * @library /test/lib
30  * @modules java.base/jdk.internal.misc
31  * @modules java.compiler
32  *          java.instrument
33  *          jdk.jartool/sun.tools.jar
34  * @compile RedefineCondy.jasm
35  * @build jdk.test.lib.helpers.ClassFileInstaller jdk.test.lib.compiler.InMemoryJavaCompiler
36  * @run main RedefineClassHelper
37  * @run main/othervm -javaagent:redefineagent.jar TestRedefineCondy
38  */
39 
40 import jdk.test.lib.compiler.InMemoryJavaCompiler;
41 
42 // Test redefining a class that has a constant dynamic in its constant pool
43 // to a class that does not have a constant dynamic in its constant pool.
44 public class TestRedefineCondy {
45 
46     static final String DEST = System.getProperty("test.classes");
47     static String newClass =
48         "public class RedefineCondy { " +
49         "public RedefineCondy(java.lang.invoke.MethodHandles.Lookup l, java.lang.String s, java.lang.Class c) { } " +
50     "public static void main(String argv[]) { } } ";
51 
52     public static void main(String[] args) throws Exception  {
53         Class<?> classWithCondy = Class.forName("RedefineCondy");
54 
55         try {
56             byte[] classBytes = InMemoryJavaCompiler.compile("RedefineCondy", newClass);
57             RedefineClassHelper.redefineClass(classWithCondy, classBytes);
58         } catch (Exception e) {
59             throw new RuntimeException("Unexpected exception: " + e.getMessage());
60         }
61     }
62 }