Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/oops/InstanceMirrorKlass.java @ 2411:63997f575155
7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
Reviewed-by: kvn, dcubed
author | never |
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date | Wed, 30 Mar 2011 07:47:19 -0700 |
parents | |
children | da91efe96a93 |
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2410:fe1dbd98e18f | 2411:63997f575155 |
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1 /* | |
2 * Copyright (c) 2011, 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 | |
25 package sun.jvm.hotspot.oops; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.memory.*; | |
31 import sun.jvm.hotspot.runtime.*; | |
32 import sun.jvm.hotspot.types.*; | |
33 import sun.jvm.hotspot.utilities.*; | |
34 | |
35 // An InstanceKlass is the VM level representation of a Java class. | |
36 | |
37 public class InstanceMirrorKlass extends InstanceKlass { | |
38 static { | |
39 VM.registerVMInitializedObserver(new Observer() { | |
40 public void update(Observable o, Object data) { | |
41 initialize(VM.getVM().getTypeDataBase()); | |
42 } | |
43 }); | |
44 } | |
45 | |
46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
47 // Just make sure it's there for now | |
48 Type type = db.lookupType("instanceMirrorKlass"); | |
49 } | |
50 | |
51 InstanceMirrorKlass(OopHandle handle, ObjectHeap heap) { | |
52 super(handle, heap); | |
53 } | |
54 | |
55 public long getObjectSize(Oop o) { | |
56 return java_lang_Class.getOopSize(o) * VM.getVM().getAddressSize(); | |
57 } | |
58 | |
59 public void iterateNonStaticFields(OopVisitor visitor, Oop obj) { | |
60 super.iterateNonStaticFields(visitor, obj); | |
61 // Fetch the real klass from the mirror object | |
62 Klass klass = java_lang_Class.asKlass(obj); | |
63 if (klass instanceof InstanceKlass) { | |
64 ((InstanceKlass)klass).iterateStaticFields(visitor); | |
65 } | |
66 } | |
67 } |