view test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java @ 13232:f1f33d1ff3e2

made instrumentation of OptimizedCallTarget.call() safe with respect to patching its verified entry point (GRAAL-605)
author Doug Simon <doug.simon@oracle.com>
date Tue, 03 Dec 2013 16:53:21 +0100
parents dc261f466b6d
children 9d15b81d5d1b
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/*
 * Copyright (c) 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.
 *
 * 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.
 *
 */

/**
 * A minimal classloader for loading bytecodes that could not result from
 * properly compiled Java.
 *
 * @author dr2chase
 */
public class ByteClassLoader extends ClassLoader {
    /**
     * (pre)load class name using classData for the definition.
     *
     * @param name
     * @param classData
     * @return
     */
    public Class<?> loadBytes(String name, byte[] classData) {
         Class<?> clazz = defineClass(name, classData, 0, classData.length);
                     resolveClass(clazz);
         return clazz;
    }
}