On Wed, 31 Aug 2022 12:30:24 GMT, Coleen Phillimore <cole...@openjdk.org> wrote:
>> I still can't decipher what this "map" actually holds. What does the unique >> WeakHandle actually refer to? > > WeakHandles are wrappers around a pointer to an oop that has been allocated > in OopStorage. We cannot hold oops directly in hashtables because then we'd > have to tell GC how and when to walk the hashtable. We want to save the > oops though because they tell us whether this protection domain has been > checked for the class that we're currently loading. The Old Hashtable held > WeakHandles. So does this one, except with the wart in that we need the > WeakHandle for both lookup and to return a unique WeakHandle for the > protection domain oop. I've suggested a different comment above. ------------- PR: https://git.openjdk.org/jdk/pull/10043
