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