1 /*

     2  * Copyright 2003-2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any 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      */

    42     public SimpleIdentityTransformer() {

    43         super();

    44     }

    45 

    46     /**

    47      *

    48      */

    49     public byte[]

    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 }