LPS-49478 Create ConcurrentIdentityHashMap which use == to do key equals testing, just like java.util.IdentityHashMap but a concurrent variant
LPS-49478 Unit test
LPS-49478 Apply to FinalizeManager, because it supposes to track the key object by identity rather than by equation
LPS-49478 Update unit test to cover identity tracking
LPS-49478 since there are 2 here
LPS-49478 Rename
LPS-49478 SF