test/tools/javac/api/evalexpr/ByteArrayClassLoader.java

Sat, 01 Dec 2007 00:00:00 +0000

author
duke
date
Sat, 01 Dec 2007 00:00:00 +0000
changeset 1
9a66ca7c79fa
child 554
9d9f26857129
permissions
-rw-r--r--

Initial load

duke@1 1 /*
duke@1 2 * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
duke@1 7 * published by the Free Software Foundation.
duke@1 8 *
duke@1 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 13 * accompanied this code).
duke@1 14 *
duke@1 15 * You should have received a copy of the GNU General Public License version
duke@1 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 18 *
duke@1 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@1 20 * CA 95054 USA or visit www.sun.com if you need additional information or
duke@1 21 * have any questions.
duke@1 22 */
duke@1 23
duke@1 24 package evalexpr;
duke@1 25
duke@1 26 import java.util.Map;
duke@1 27
duke@1 28 /**
duke@1 29 * A class loader which loads classes from byte arrays.
duke@1 30 *
duke@1 31 * <p><b>This is NOT part of any API supported by Sun Microsystems.
duke@1 32 * If you write code that depends on this, you do so at your own
duke@1 33 * risk. This code and its internal interfaces are subject to change
duke@1 34 * or deletion without notice.</b></p>
duke@1 35 * @author Peter von der Ah&eacute;
duke@1 36 */
duke@1 37 public class ByteArrayClassLoader extends ClassLoader {
duke@1 38 /**
duke@1 39 * Maps binary class names to class files stored as byte arrays.
duke@1 40 */
duke@1 41 private Map<String, byte[]> classes;
duke@1 42
duke@1 43 /**
duke@1 44 * Creates a new instance of ByteArrayClassLoader
duke@1 45 * @param classes a map from binary class names to class files stored as byte arrays
duke@1 46 */
duke@1 47 public ByteArrayClassLoader(Map<String, byte[]> classes) {
duke@1 48 this.classes = classes;
duke@1 49 }
duke@1 50
duke@1 51 @Override
duke@1 52 public Class<?> loadClass(String name) throws ClassNotFoundException {
duke@1 53 try {
duke@1 54 return super.loadClass(name);
duke@1 55 } catch (ClassNotFoundException e) {
duke@1 56 byte[] classData = classes.get(name);
duke@1 57 return defineClass(name, classData, 0, classData.length);
duke@1 58 }
duke@1 59 }
duke@1 60 }

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