[This question][1] about Java MaxHeapSize was closed because it needs to be more focused. How can it be made more focused?

"Needs more focus" is defined [here][2] as "has many valid answers (but no way to determine which - if any - are correct)". However, this is not the case. I ask for the list of things that influence MaxHeapSize. That's one answer - a list of things. Could be a [community wiki][3].


  [1]: https://superuser.com/q/1521631/
  [2]: https://superuser.com/help/closed-questions
  [3]: https://meta.stackexchange.com/questions/11740/what-are-community-wiki-posts