question about Unsafe.allocateInstance

[Li Li]

hi all,
     I want to allocate and free memory as c/c++ language and I found the
Unsafe in hotspot vm. I know the danger of using this class. But I still
want to try it.
     allocateMemory and freeMemory are hard to use because I can't deal
with primitive types such as int long and need convert them to byte arrays.
     And I also find a method named allocateInstance, which seems what I
want. it just allocate space for this object. I don't know the memory is in
heap or direct memory. if it's in direct memory, it should exist a method
like freeInstance, but I don't find such one.
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