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8268364: jmethod clearing should be done during unloading

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Reviewed-by: dcubed, eosterlund
This commit is contained in:
Coleen Phillimore 2021-07-02 18:04:45 +00:00
parent 53ad903a82
commit 3d84398d12
2 changed files with 23 additions and 16 deletions
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9
src/hotspot/share/oops/method.cpp
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@ -2254,10 +2254,15 @@ bool Method::is_method_id(jmethodID mid) {
Method* Method::checked_resolve_jmethod_id(jmethodID mid) {
if (mid == NULL) return NULL;
Method* o = resolve_jmethod_id(mid);
if (o == NULL || o == JNIMethodBlock::_free_method || !((Metadata*)o)->is_method()) {
if (o == NULL || o == JNIMethodBlock::_free_method) {
return NULL;
}
return o;
// Method should otherwise be valid. Assert for testing.
assert(is_valid_method(o), "should be valid jmethodid");
// If the method's class holder object is unreferenced, but not yet marked as
// unloaded, we need to return NULL here too because after a safepoint, its memory
// will be reclaimed.
return o->method_holder()->is_loader_alive() ? o : NULL;
};
void Method::set_on_stack(const bool value) {