Basic Asyncronous TCP server in Java

I'm trying to create a very basic asynchronous server in Java (similar to http://msdn.microsof开发者_开发技巧t.com/en-us/library/fx6588te.aspx in C#). All of the libraries I've seen for Java are way too complex for what I need and I'm wondering if there are any libraries that are simple and have a syntax similar to the C# example.

Edit: Why does plain sockets require root access to listen on the loopback, but nio doesn't require root?

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try AsynchronousServerSocketChannel & AsynchronousSocketChannel

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This sounds like a job for Java's NIO (New I/O) ServerSocketChannel.

Be forewarned, though: this doesn't guarantee better performance. See:

• Java in 2011: threaded sockets VS NIO: what to choose on 64bit OS and latest Java version?
• http://www.thebuzzmedia.com/java-io-faster-than-nio-old-is-new-again/