title: What is Stateless Object in Java?
body: <p>Currently I'm reading "Java concurrency in practice", which contains this sentence:</p>
  
  <blockquote>
    <p>Since the action of a thread accessing a stateless object can't affect the correctness of operations on other threads, stateless objects are thread-safe.</p>
  </blockquote>
  
  <p>So, what is stateless object?</p>