Filed on behalf of Misha Dmitriev.

A boxed primitive (i.e. Integer, Long, Boolean, etc) consumes a lot more space on the heap. Arrays of boxed primitives consume 28% of the heap space. Consider converting the arrays of boxed primitives into primitive arrays (i.e. Object[] to int[]). If a non-int object is added to the array, then automatically convert the array back to Object[].