1) Controlling memory layout is not as big a deal as people think. The JVM is highly optimized (really it's probably the most optimized system ever devised) for allocating and deallocating objects on the heap.
2) It is in fact possible to control memory layout today because Java has access to offheap memory where you can have all the control you want.
This has actually been the case for nearly half a decade but for some reason a lot of people are convinced that "big arrays" can knock over the JVM.
1) Controlling memory layout is not as big a deal as people think. The JVM is highly optimized (really it's probably the most optimized system ever devised) for allocating and deallocating objects on the heap.
2) It is in fact possible to control memory layout today because Java has access to offheap memory where you can have all the control you want.
This has actually been the case for nearly half a decade but for some reason a lot of people are convinced that "big arrays" can knock over the JVM.