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comparison agent/src/share/classes/sun/jvm/hotspot/utilities/ProcImageClassLoader.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2002-2004 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.utilities;
26
27 import java.io.*;
28 import sun.jvm.hotspot.oops.*;
29 import sun.jvm.hotspot.tools.jcore.*;
30
31 /**
32 Class loader that loads classes from the process/core image
33 of the debuggee.
34 */
35
36 public class ProcImageClassLoader extends ClassLoader {
37 public ProcImageClassLoader(ClassLoader parent) {
38 super(parent);
39 }
40
41 public ProcImageClassLoader() {
42 this(Thread.currentThread().getContextClassLoader());
43 }
44
45 protected Class findClass(String className) throws ClassNotFoundException {
46 try {
47 ByteArrayOutputStream bos = new ByteArrayOutputStream();
48 InstanceKlass klass = SystemDictionaryHelper.findInstanceKlass(className);
49 ClassWriter cw = new ClassWriter(klass, bos);
50 cw.write();
51 byte[] buf = bos.toByteArray();
52 return defineClass(className, buf, 0, buf.length);
53 } catch (Exception e) {
54 throw (ClassNotFoundException) new ClassNotFoundException().initCause(e);
55 }
56 }
57 }