Deadlock problem in production and consumption

A producer, two consumers, Max=1,

There is a moment when all the threads are entering the waiting queue.

To resolve the deadlock problem, see the following code:

Package java.thread;
		/** * Deadlock problem in production and consumption * * public class ThreadDemo6 {public static void main (string[] args) {//Use Java Collection class, List is lists.
		Pool1 pool = new Pool1 ();
		Productor P1 = new Productor ("Producer 1", pool);
		P1.setname ("P1");
		Consumer1 C1 = new Consumer1 ("Consumer", pool);
		C1.setname ("C1");
		Consumer1 C2 = new Consumer1 ("Consumer", pool);
		C2.setname ("C2");
		P1.start ();
		C1.start ();
	C2.start ();
	}//Producer class Productor extends Thread {static int i = 0;
	private String name;

	Private Pool1 pool;
		Public Productor (String name, Pool1 pool) {this.name = name;
	This.pool = pool;
		public void Run () {while (true) {Pool.add (i++);
	}}//Consumer class Consumer1 extends Thread {private String name;

	Private Pool1 pool;
		Public Consumer1 (String name, Pool1 pool) {this.name = name;
	This.pool = pool;
			public void Run () {while (true) {pool.remove ();
		System.out.println ("-:" + i); }}/** * Pool/class Pool1 {private Java.util.list<integer> list = new java.util.arraylist<integer> ();

	container maximum value private int MAX = 1;
				add element public void Add (int n) {synchronized (this) {try {String name = Thread.CurrentThread (). GetName ();
					while (list.size () = = MAX) {System.out.println (name + ". Wait ()");
					Timed waiting.
				This.wait ();
				} list.add (n);
				SYSTEM.OUT.PRINTLN (name + "+:" + N);
				SYSTEM.OUT.PRINTLN (name + ". Notify ()");
			This.notifyall ();
			catch (Exception e) {e.printstacktrace (); "}}//delete element public int remove () {synchronized () {try {String name = Thread.CurrentThread (). GetName
				();
					while (list.size () = = 0) {System.out.println (name + ". Wait ()");
				This.wait ();
				int i = list.remove (0);
				SYSTEM.OUT.PRINTLN (name + "-:" + i);
				SYSTEM.OUT.PRINTLN (name + ". Notify ()");
				This.notifyall ();
			return i;
			catch (Exception e) {e.printstacktrace ();
		} return-1; }
	}
}