I believe that prior to 1.3 (maybe it was 1.2) Java was exact for pointers on the heap, conservative for pointers on the stack, because being exact for pointers on the stack means maintaining ...

Live Objects on the Java heap Along with the initial automated analysis, Java Mission Control will provide a list indicating the size of all active items on the heap, along with a list of all live ...

The hot code heap proposal is based on older proposals for a segmented code cache and compiler control. Both are from Java Development Kit 9, which was released in September 2017.

Java 7 introduced the @SafeVarargs annotation to address the heap pollution issue. This annotation asserts that the method does not perform potentially unsafe operations on its varargs parameter.