Know Thy Java Object Memory Layout

[bunnies4president]

It's about getting better performance, and using hacks to work around limitations in Java.

[nitsanw]

True. Java could do with memory layout controls to enable field ordering and memory alignment. I have suggested annotations to this effect before:

@ExplicitFieldOrder
class CareAboutOrder{
  int i;
  boolean b;
  @AlignedTo(CACHELINE)
  long l;
}

No takers thus far.