Subject:Concurrency The question is from the book called "The art of multiprocessor programming" chapter 9 Exercise 110. Would the lazy algorithm still work if we marked a node as removed simply by setting its next field to null?Why or why not?What about the lock-free algorithm?

/**  * Atomically update Java variable to x if it is currently  * holding expected.  * @return true if successful  */ public final native boolean compareAndSwapInt(Object o, long offset, int expected, int x);

WHY OR WHY NOT?