Mercurial > hg > graal-jvmci-8
comparison agent/src/share/classes/sun/jvm/hotspot/debugger/OopHandle.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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1 /* | |
2 * Copyright 2000-2007 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.debugger; | |
26 | |
27 /** <P> This is a tag interface (similar to Cloneable) which indicates | |
28 that the contained address is "special" and is updated under the | |
29 hood by the VM. The purpose is to support implementation of | |
30 reflection on the current VM with these interfaces; if the Java | |
31 code implementing parts of the VM requires proxies for objects in | |
32 the heap, it must be the case that those proxies are updated if GC | |
33 occurs. This is the level at which this updating is handled. The | |
34 VM (and specifically the GC code) must have intimate knowledge of | |
35 the VM-specific implementation of this interface. </P> | |
36 | |
37 <P> Note that in the case of debugging a remote VM, it is not | |
38 workable to handle the automatic updating of these handles. | |
39 If the debugger allows the VM to resume running, it will have to | |
40 look up once again any object references via the path they were | |
41 found (i.e., the activation on the stack as the root, etc.) </P> | |
42 */ | |
43 | |
44 public interface OopHandle extends Address { | |
45 } |