--- old/test/testlibrary/jdk/test/lib/ByteCodeLoader.java 2016-08-11 13:49:04.764577000 -0400 +++ /dev/null 2016-08-11 13:49:04.000000000 -0400 @@ -1,90 +0,0 @@ -/* - * Copyright (c) 2013, 2015, 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. - */ - -package jdk.test.lib; - -import java.security.SecureClassLoader; - -/** - * {@code ByteCodeLoader} can be used for easy loading of byte code already - * present in memory. - * - * {@code InMemoryCompiler} can be used for compiling source code in a string - * into byte code, which then can be loaded with {@code ByteCodeLoader}. - * - * @see InMemoryCompiler - */ -public class ByteCodeLoader extends SecureClassLoader { - private final String className; - private final byte[] byteCode; - private volatile Class holder; - - /** - * Creates a new {@code ByteCodeLoader} ready to load a class with the - * given name and the given byte code. - * - * @param className The name of the class - * @param byteCode The byte code of the class - */ - public ByteCodeLoader(String className, byte[] byteCode) { - this.className = className; - this.byteCode = byteCode; - } - - @Override - public Class loadClass(String name) throws ClassNotFoundException { - if (!name.equals(className)) { - return super.loadClass(name); - } - if (holder == null) { - synchronized(this) { - if (holder == null) { - holder = findClass(name); - } - } - } - return holder; - } - - @Override - protected Class findClass(String name) throws ClassNotFoundException { - if (!name.equals(className)) { - throw new ClassNotFoundException(name); - } - - return defineClass(name, byteCode, 0, byteCode.length); - } - - /** - * Utility method for creating a new {@code ByteCodeLoader} and then - * directly load the given byte code. - * - * @param className The name of the class - * @param byteCode The byte code for the class - * @throws ClassNotFoundException if the class can't be loaded - * @return A {@see Class} object representing the class - */ - public static Class load(String className, byte[] byteCode) throws ClassNotFoundException { - return new ByteCodeLoader(className, byteCode).loadClass(className); - } -}