Java垃圾收集如何处理循环引用?
class Node {
public object value;
public Node next;
public Node(object o, Node n) { value = 0; next = n;}}//...some code{
Node a = new Node("a", null),
b = new Node("b", a),
c = new Node("c", b);
a.next = c;} //end of scope//...other codea, bc
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