Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/oops/InstanceMirrorKlass.java @ 8790:7f0cb32dd233
8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
Summary: Enforce MaxMetaspaceSize for both metaspace parts, check MaxMetaspaceSize against "reserved", not "capacity"
Reviewed-by: jmasa, johnc
author | mgerdin |
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date | Thu, 21 Mar 2013 09:07:43 +0100 |
parents | aed758eda82a |
children |
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/* * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package sun.jvm.hotspot.oops; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.memory.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; // An InstanceKlass is the VM level representation of a Java class. public class InstanceMirrorKlass extends InstanceKlass { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { // Just make sure it's there for now Type type = db.lookupType("InstanceMirrorKlass"); } public InstanceMirrorKlass(Address addr) { super(addr); } public long getObjectSize(Oop o) { return java_lang_Class.getOopSize(o) * VM.getVM().getAddressSize(); } public void iterateNonStaticFields(OopVisitor visitor, Oop obj) { super.iterateNonStaticFields(visitor, obj); // Fetch the real klass from the mirror object Klass klass = java_lang_Class.asKlass(obj); if (klass instanceof InstanceKlass) { ((InstanceKlass)klass).iterateStaticFields(visitor); } } }