When will it stop?

concurrency.java

	public static void main(String[] args) {
		Vector<Integer> v1 = new Vector<>();
		Vector<Integer> v2 = new Vector<>();
		Thread t1 = new Thread(new Runnable() {
			@Override
			public void run() {

				int i  = 0;
				while(true) {
					System.out.println("T1 try" + i);
					v1.addAll(v2);
					i++;
				}
			}
		});
		
		Thread t2 = new Thread(new Runnable() {
			public void run() {

				int i = 0;
				while(true) {
					System.out.println("T2 try " + i);
					v2.addAll(v1);
					i++;
				}
			}
		});
		
		t1.start();
		t2.start();
	}