How to Cause Leaks in a Garbage Collection System : Garbage Collection « Java Source And Data Type « SCJP

public class MainClass {
  static int[] storage = new int[] { 1, 2, 3 };
  static int index = 2;
  public static void main() {
    pop();
  }

  public static Object pop() {
    return storage[index--];
  }
}

1.27.Garbage Collection
	1.27.1.	JVM Garbage Collection
	1.27.2.	How to Cause Leaks in a Garbage Collection System
	1.27.3.	Avoiding the memory leak
	1.27.4.	To remove a reference to an object is to set the reference variable to null.
	1.27.5.	Reassigning a Reference Variable to remove a reference to an object
	1.27.6.	If an object is returned from the method, its reference might be assigned to a reference variable;
	1.27.7.	Free memory result should indicate whether Garbage collector has run
	1.27.8.	An Example of Garbage Collection in Action