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1 /*
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2 * Copyright 2000 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.runtime;
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26
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27 import java.lang.reflect.*;
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28 import sun.jvm.hotspot.debugger.*;
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29 import sun.jvm.hotspot.types.*;
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30
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31 /** <P> This class implements a factory mechanism for the objects
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32 created to wrap Addresses. It requires that the class passed in
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33 implement a constructor taking with the following signature: </P>
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34
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35 <P>
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36 <CODE> public <Type>(sun.jvm.hotspot.Address)
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37 </CODE>
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38 </P>
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39
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40 <P> It is used to write shorter code when wrapping Addresses since
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41 null checks are no longer necessary. In addition, it is a central
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42 location where a canonicalizing map could be implemented if one
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43 were desired (though the current system is designed to not require
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44 one.) </P>
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45 */
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46
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47 public class VMObjectFactory {
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48 public static Object newObject(Class clazz, Address addr)
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49 throws ConstructionException {
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50 try {
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51 if (addr == null) {
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52 return null;
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53 }
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54
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55 Constructor c = clazz.getConstructor(new Class[] {
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56 Address.class
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57 });
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58 return c.newInstance(new Object[] { addr });
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59 }
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60 catch (Exception e) {
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61 throw new ConstructionException(e);
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62 }
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63 }
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64 }
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