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8202578: Revisit location for class unload events

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Use notify_unload_class() to post JFR class unload events instead of doing a separate traversal of the class loader data graph

Reviewed-by: lfoltan, coleenp, mgronlun, egahlin
This commit is contained in:
Harold Seigel 2018-08-28 10:10:11 -04:00
parent 12c27777c8
commit eb51968f00
3 changed files with 16 additions and 32 deletions
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12
src/hotspot/share/oops/instanceKlass.cpp
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@ -80,6 +80,10 @@
#ifdef COMPILER1
#include "c1/c1_Compiler.hpp"
#endif
#if INCLUDE_JFR
#include "jfr/jfrEvents.hpp"
#endif
#ifdef DTRACE_ENABLED
@ -2423,6 +2427,14 @@ void InstanceKlass::notify_unload_class(InstanceKlass* ik) {
// notify ClassLoadingService of class unload
ClassLoadingService::notify_class_unloaded(ik);
#if INCLUDE_JFR
assert(ik != NULL, "invariant");
EventClassUnload event;
event.set_unloadedClass(ik);
event.set_definingClassLoader(ik->class_loader_data());
event.commit();
#endif
}
void InstanceKlass::release_C_heap_structures(InstanceKlass* ik) {