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8003720: NPG: Method in interpreter stack frame can be deallocated

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Pass down a closure during root scanning to keep the class of the method alive.

Reviewed-by: coleenp, jcoomes
This commit is contained in:
Stefan Karlsson 2012-11-27 10:13:20 +01:00
parent 2e2b69e96b
commit 3c2f3a321a
18 changed files with 327 additions and 42 deletions
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14
hotspot/src/share/vm/memory/iterator.hpp
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@ -135,6 +135,20 @@ class KlassToOopClosure : public KlassClosure {
virtual void do_klass(Klass* k);
};
class CLDToOopClosure {
OopClosure* _oop_closure;
KlassToOopClosure _klass_closure;
bool _must_claim_cld;
public:
CLDToOopClosure(OopClosure* oop_closure, bool must_claim_cld = true) :
_oop_closure(oop_closure),
_klass_closure(oop_closure),
_must_claim_cld(must_claim_cld) {}
void do_cld(ClassLoaderData* cld);
};
// ObjectClosure is used for iterating through an object space
class ObjectClosure : public Closure {