1/*
2 * Copyright (c) 2002, 2004, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25package sun.jvm.hotspot.utilities;
26
27import java.io.*;
28import sun.jvm.hotspot.oops.*;
29import sun.jvm.hotspot.tools.jcore.*;
30
31/**
32   Class loader that loads classes from the process/core image
33   of the debuggee.
34*/
35
36public 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}
58