8071507: (ref) Clear phantom reference as soft and weak references do
Summary: GC clears phantom refs on notification; update spec accordingly.
Reviewed-by: mchung, jmasa
/*
* Copyright (c) 2002, 2015, 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_VM_GC_SHARED_GCNAME_HPP
#define SHARE_VM_GC_SHARED_GCNAME_HPP
#include "utilities/debug.hpp"
enum GCName {
ParallelOld,
SerialOld,
PSMarkSweep,
ParallelScavenge,
DefNew,
ParNew,
G1New,
ConcurrentMarkSweep,
G1Old,
GCNameEndSentinel
};
class GCNameHelper {
public:
static const char* to_string(GCName name) {
switch(name) {
case ParallelOld: return "ParallelOld";
case SerialOld: return "SerialOld";
case PSMarkSweep: return "PSMarkSweep";
case ParallelScavenge: return "ParallelScavenge";
case DefNew: return "DefNew";
case ParNew: return "ParNew";
case G1New: return "G1New";
case ConcurrentMarkSweep: return "ConcurrentMarkSweep";
case G1Old: return "G1Old";
default: ShouldNotReachHere(); return NULL;
}
}
};
#endif // SHARE_VM_GC_SHARED_GCNAME_HPP