1 /* 2 * Copyright (c) 2003, 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 import java.lang.instrument.Instrumentation; 25 import java.lang.instrument.ClassFileTransformer; 26 27 import java.security.*; 28 29 /* 30 * Copyright 2003 Wily Technology, Inc. 31 */ 32 33 /** 34 * ClassFileTransformer implementation that returns a copy of its input 35 */ 36 public class 37 SimpleIdentityTransformer implements ClassFileTransformer { 38 39 /** 40 * Constructor for SimpleIdentityTransform. 41 */ SimpleIdentityTransformer()42 public SimpleIdentityTransformer() { 43 super(); 44 } 45 46 /** 47 * 48 */ 49 public byte[] transform( ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer)50 transform( 51 ClassLoader loader, 52 String className, 53 Class<?> classBeingRedefined, 54 ProtectionDomain protectionDomain, 55 byte[] classfileBuffer) { 56 byte[] newBuffer = new byte[classfileBuffer.length]; 57 System.arraycopy(classfileBuffer, 0, newBuffer, 0, classfileBuffer.length); 58 59 return newBuffer; 60 } 61 62 public byte[] transform( Module module, ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer)63 transform( 64 Module module, 65 ClassLoader loader, 66 String className, 67 Class<?> classBeingRedefined, 68 ProtectionDomain protectionDomain, 69 byte[] classfileBuffer) { 70 byte[] newBuffer = new byte[classfileBuffer.length]; 71 System.arraycopy(classfileBuffer, 0, newBuffer, 0, classfileBuffer.length); 72 73 return newBuffer; 74 } 75 } 76