/*
 * Copyright (c) 2001, 2013, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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 */
package sun.misc;

import java.util.ArrayList;
import java.util.List;

This is an abstract base class originally intended to be called by java.lang.ClassLoader when ClassFormatError is thrown inside defineClass(). It is no longer hooked into ClassLoader and will be removed in a future release. 
Author:
     Stanley Man-Kit Ho/**
 * This is an abstract base class originally intended to be called by
 * {@code java.lang.ClassLoader} when {@code ClassFormatError} is
 * thrown inside {@code defineClass()}. It is no longer hooked into
 * {@code ClassLoader} and will be removed in a future release.
 *
 * @author      Stanley Man-Kit Ho
 */

@Deprecated
public abstract class ClassFileTransformer {

    private static final List<ClassFileTransformer> transformers
        = new ArrayList<ClassFileTransformer>();

    
Add the class file transformer object.
Params:
t – Class file transformer instance/**
     * Add the class file transformer object.
     *
     * @param t Class file transformer instance
     */
    public static void add(ClassFileTransformer t) {
        synchronized (transformers) {
            transformers.add(t);
        }
    }

    
Get the array of ClassFileTransformer object.
Returns:
ClassFileTransformer object array/**
     * Get the array of ClassFileTransformer object.
     *
     * @return ClassFileTransformer object array
     */
    public static ClassFileTransformer[] getTransformers() {
        synchronized (transformers) {
            ClassFileTransformer[] result = new ClassFileTransformer[transformers.size()];
            return transformers.toArray(result);
        }
    }


    
Transform a byte array from one to the other.
Params:
b – Byte array
off – Offset
len – Length of byte array
Returns:
Transformed byte array/**
     * Transform a byte array from one to the other.
     *
     * @param b Byte array
     * @param off Offset
     * @param len Length of byte array
     * @return Transformed byte array
     */
    public abstract byte[] transform(byte[] b, int off, int len)
        throws ClassFormatError;
}