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6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit

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Ensure a full GC that clears SoftReferences before throwing an out-of-memory

Reviewed-by: ysr, jcoomes
This commit is contained in:
Jon Masamitsu 2010-04-13 13:52:10 -07:00
parent ba815bf09e
commit f5197d0d36
26 changed files with 543 additions and 364 deletions
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6
hotspot/src/share/vm/gc_interface/collectedHeap.hpp
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@ -1,5 +1,5 @@
/*
* Copyright 2001-2009 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 2001-2010 Sun Microsystems, Inc. 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
@ -31,6 +31,7 @@ class BarrierSet;
class ThreadClosure;
class AdaptiveSizePolicy;
class Thread;
class CollectorPolicy;
//
// CollectedHeap
@ -506,6 +507,9 @@ class CollectedHeap : public CHeapObj {
// Return the AdaptiveSizePolicy for the heap.
virtual AdaptiveSizePolicy* size_policy() = 0;
// Return the CollectorPolicy for the heap
virtual CollectorPolicy* collector_policy() const = 0;
// Iterate over all the ref-containing fields of all objects, calling
// "cl.do_oop" on each. This includes objects in permanent memory.
virtual void oop_iterate(OopClosure* cl) = 0;