title: What happens when the response from the CompletableFuture is ignored?
body: <p>I am experimenting with <a href="https://docs.oracle.com/javase/10/docs/api/java/util/concurrent/CompletableFuture.html" rel="nofollow noreferrer"><code>CompletableFuture</code></a> in making <a href="https://en.wikipedia.org/wiki/Asynchrony_(computer_programming)" rel="nofollow noreferrer">async</a> API calls. I am trying to understand the implication of ignoring the response from a <a href="https://docs.oracle.com/javase/10/docs/api/java/util/concurrent/Future.html" rel="nofollow noreferrer"><code>Future</code></a>. The JVM technically executes the async API call and returns the result. </p>
  
  <p>But in case we have no <a href="https://docs.oracle.com/javase/10/docs/api/java/util/concurrent/CompletableFuture.html#get()" rel="nofollow noreferrer"><code>CompletableFuture.get()</code></a> call to retrieve the response, I assume that the response is never being accessed in the code. From an operational standpoint, is that something safe? Are there any specific caveats/safety checks which I should be aware of when I ignore the response from the <code>CompletableFuture</code>? </p>