XMemcached is a high performance, easy to use multithreaded memcached client in java.

It's nio based and was carefully turned to get top performance.

Xmemcached 1.3.5 has been released! Please check ReleaseNotes.

Here is a performance comparison between java memcached client.

http://xmemcached.googlecode.com/svn/trunk/benchmark/benchmark.html

If you are using maven2 to build your project,you can try it now:

  <dependency>
      <groupId>com.googlecode.xmemcached</groupId>
      <artifactId>xmemcached</artifactId>
      <version>1.3.5</version>
 </dependency>

If you are using clojure,you can use clj-xmemcached,it is a wrapper for xmemcached:

clj-xmemcached