Why doesn't this thread pool get garbage collected?

Question

In this code example, the ExecutorService is used one and allowed to go out of scope.

public static void main(String[] args)
{
    ExecutorService executorSe         


        

Answer 1

Finalizers are too unpredictable. Depending on them is usually bad practice. You can read more about it in "Effective java" by Joshua Bloch (item 1.7)