title: Executor Thread Pool - limit queue size and dequeue oldest
body: <p>I am using a fixed thread pool for a consumer of produced messages within a spring boot application. My producer is producing (a lot) faster than the producer is able to handle a message, therefore the queue of the thread pool seems to be "flooding". </p>
  
  <p>What would be the best way to limit the queue size? The intended queue behaviour would be "if the queue is full, remove the head and insert the new Runnable". Is it possible to configure Executors thread pool like this?</p>