the first test case is not passing

package com.codegym.task.task27.task2707; /* Determining locking order */ public class Solution { public void someMethodWithSynchronizedBlocks(Object obj1, Object obj2) { synchronized (obj2) { synchronized (obj1) { System.out.println(obj1 + " " + obj2); } } } public static boolean isLockOrderNormal(final Solution solution, final Object o1, final Object o2) throws Exception { Thread thread1 = new Thread(new Runnable() { @Override public void run() { synchronized (o1) { while (true) {} } } }); Thread thread2 = new Thread(new Runnable() { @Override public void run() { solution.someMethodWithSynchronizedBlocks(o1, o2); while (true) {} } }); Thread thread3 = new Thread(new Runnable() { @Override public void run() { synchronized (o2) { while (true) {} } } }); thread1.setDaemon(true); thread1.start(); Thread.sleep(300); thread2.setDaemon(true); thread2.start(); Thread.sleep(300); thread3.setDaemon(true); thread3.start(); Thread.sleep(300); // if thread3 could enter o2, the order was correct return (thread3.getState() == Thread.State.RUNNABLE); } public static void main(String[] args) throws Exception { final Solution solution = new Solution(); final Object o1 = new Object(); final Object o2 = new Object(); System.out.println(isLockOrderNormal(solution, o1, o2)); } }