Thread-safe circular buffer in Java

Question

Consider a few web server instances running in parallel. Each server holds a reference to a single shared \"Status keeper\", whose role is keeping the last N re

Answer 1

Also have a look at java.util.concurrent.

Blocking queues will block until there is something to consume or (optionally) space to produce:

http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/BlockingQueue.html

Concurrent linked queue is non-blocking and uses a slick algorithm that allows a producer and consumer to be active concurrently:

http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html