1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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
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  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
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  23 
  24 /*
  25  * @test
  26  * @bug 8026365
  27  * @summary Test invokespecial of host class method from an anonymous class
  28  * @author  Robert Field
  29  * @library /testlibrary
  30  * @modules java.base/jdk.internal.org.objectweb.asm
  31  *          java.base/jdk.internal.misc
  32  * @compile -XDignore.symbol.file InvokeSpecialAnonTest.java
  33  * @run main ClassFileInstaller InvokeSpecialAnonTest AnonTester
  34  * @run main/othervm -Xbootclasspath/a:. -Xverify:all InvokeSpecialAnonTest
  35  */
  36 import jdk.internal.org.objectweb.asm.*;
  37 import java.lang.reflect.Constructor;
  38 import jdk.internal.misc.Unsafe;
  39 
  40 public class InvokeSpecialAnonTest implements Opcodes {
  41 
  42     static byte[] anonClassBytes() throws Exception {
  43         ClassWriter cw = new ClassWriter(0);
  44         MethodVisitor mv;
  45 
  46         cw.visit(V1_8, ACC_FINAL + ACC_SUPER, "Anon", null, "java/lang/Object", null);
  47 
  48         {
  49             mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
  50             mv.visitCode();
  51             mv.visitVarInsn(ALOAD, 0);
  52             mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
  53             mv.visitInsn(RETURN);
  54             mv.visitMaxs(2, 2);
  55             mv.visitEnd();
  56         }
  57         {
  58             mv = cw.visitMethod(ACC_PUBLIC, "m", "(LInvokeSpecialAnonTest;)I", null, null);
  59             mv.visitCode();
  60             mv.visitVarInsn(ALOAD, 0);
  61             mv.visitVarInsn(ALOAD, 1);
  62             mv.visitMethodInsn(INVOKESPECIAL, "InvokeSpecialAnonTest", "privMethod", "()I");
  63             mv.visitInsn(IRETURN);
  64             mv.visitMaxs(2, 3);
  65             mv.visitEnd();
  66         }
  67         cw.visitEnd();
  68 
  69         return cw.toByteArray();
  70     }
  71 
  72     private int privMethod() { return 1234; }
  73 
  74     public static void main(String[] args) throws Exception {
  75         Class<?> klass = InvokeSpecialAnonTest.class;
  76         try {
  77            Class<?> result = AnonTester.defineTest(klass, anonClassBytes());
  78            System.out.println("Passed.");
  79         } catch (Exception e) {
  80            e.printStackTrace();
  81            throw e;
  82         }
  83     }
  84 }
  85 
  86 
  87 class AnonTester {
  88     private static final Unsafe UNSAFE = Unsafe.getUnsafe();
  89 
  90     public static Class<?> defineTest(Class<?> targetClass, byte[] classBytes) throws Exception {
  91         return UNSAFE.defineAnonymousClass(targetClass, classBytes, null);
  92     }
  93 }