Yep the Hotspot JIT will absolutely allocate on the stack and reuse memory allocations inside loops. It also has escape analysis and it will detect you don't ne

Yep the Hotspot JIT will absolutely allocate on the stack and reuse memory allocations inside loops. It also has escape analysis and it will detect you don't need the array of strings after the iteration. In that case it usually just allocates the strings directly at their final locations on the record object.