It's worth noting that proposals, like JSR 83 (http://jcp.org/en/jsr/detail?id=83 http://jcp.org/en/jsr/detail?id=83), to address Java's multi-dimensional array

It's worth noting that proposals, like JSR 83 (http://jcp.org/en/jsr/detail?id=83 http://jcp.org/en/jsr/detail?id=83), to address Java's multi-dimensional array shortcomings have been around for quite some time. Of course, JSR 83 just sat around for five years before being abandoned; maybe Java folks don't think efficient multi-dimensional arrays are useful and/or common.