--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/instrument/SimpleIdentityTransformer.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2003-2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+import java.lang.instrument.Instrumentation;
+import java.lang.instrument.ClassFileTransformer;
+
+import java.security.*;
+
+/*
+ * Copyright 2003 Wily Technology, Inc.
+ */
+
+/**
+ * ClassFileTransformer implementation that returns a copy of its input
+ */
+public class
+SimpleIdentityTransformer implements ClassFileTransformer {
+
+    /**
+     * Constructor for SimpleIdentityTransform.
+     */
+    public SimpleIdentityTransformer() {
+        super();
+    }
+
+    /**
+     *
+     */
+    public byte[]
+    transform(
+        ClassLoader loader,
+        String className,
+        Class<?> classBeingRedefined,
+        ProtectionDomain    protectionDomain,
+        byte[] classfileBuffer) {
+        byte[] newBuffer = new byte[classfileBuffer.length];
+        System.arraycopy(classfileBuffer, 0, newBuffer, 0, classfileBuffer.length);
+
+        return newBuffer;
+    }
+
+}