Hi,
Welcome to JavaRanch!
We have a strict
policy on display names, which must be a real first and last name with a space between -- not the same name twice.
Please go
here and fix your display name up, pronto. Thanks, pardner!
As to your question: the 100m is the size of the
Java heap, the arena set aside for allocating Java objects. The VM implementation itself also takes up memory, and this memory is outside of the 100m.