--- /dev/null 2014-05-28 17:40:08.932424258 +0400 +++ new/test/runtime/RedefineFinalizer/Agent.java 2014-05-28 16:50:05.730554357 +0400 @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +import java.lang.instrument.Instrumentation; +import java.lang.instrument.ClassDefinition; + +import jdk.internal.org.objectweb.asm.ClassWriter; +import jdk.internal.org.objectweb.asm.Label; +import jdk.internal.org.objectweb.asm.MethodVisitor; +import jdk.internal.org.objectweb.asm.Opcodes; + +public class Agent implements Opcodes { + + private static byte[] makeNewMartyr() { + ClassWriter cw = new ClassWriter(0); + MethodVisitor mv; + + cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "Martyr", null, "java/lang/Object", null); + cw.visitSource(null, null); + + { + mv = cw.visitMethod(ACC_PUBLIC, "", "()V", null, null); + mv.visitCode(); + Label lab0 = new Label(); + mv.visitLabel(lab0); + mv.visitLineNumber(1, lab0); + mv.visitVarInsn(ALOAD, 0); + mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "", "()V"); + mv.visitInsn(RETURN); + mv.visitMaxs(1, 1); + mv.visitEnd(); + } + + { + mv = cw.visitMethod(ACC_PUBLIC, "getName", "()Ljava/lang/String;", null, null); + mv.visitCode(); + Label lab0 = new Label(); + mv.visitLabel(lab0); + mv.visitLineNumber(6, lab0); + mv.visitLdcInsn("Redefinition done"); + mv.visitInsn(ARETURN); + mv.visitMaxs(1, 1); + mv.visitEnd(); + } + + { + mv = cw.visitMethod(ACC_PROTECTED, "finalize", "()V", null, null); + mv.visitCode(); + Label lab0 = new Label(); + mv.visitLabel(lab0); + mv.visitLineNumber(8, lab0); + mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); + mv.visitLdcInsn("Finalizer called"); + mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V"); + mv.visitInsn(RETURN); + mv.visitMaxs(2, 1); + mv.visitEnd(); + } + + cw.visitEnd(); + return cw.toByteArray(); + } + + + public static void premain(String args, Instrumentation inst) throws Exception { + agentmain(args, inst); + } + + public static void agentmain(String args, Instrumentation inst) throws Exception { + ClassDefinition martyrDef = + new ClassDefinition(Class.forName("Martyr"), makeNewMartyr()); + inst.redefineClasses(martyrDef); + } +}