Apply garbage-free off-heap programming to database operations

[tuhuynh27]

Ref: net.openhft.chronicle.map.ChronicleMap:

Functionally this interface defines some methods supporting garbage-free off-heap programming: getUsing(Object, Object), acquireUsing(Object, Object).

Consider using getUsing and accquireUsing, and Values.newHeapInstance(byte[].class)

[haphananhtuan]

According to this, getUsing is not supported for byte yet. Also, using Values.newHeapInstance(byte[].class) return in IllegalArgumentException since byte[] is not a value interface according to CM docs