how to create Telnet CLI in JAVA

[devan]

Hi Guys,
I work on a JAVA project that has two parts. In one part we provide Command Line Integration(CLI) for users. Now the CLI part exist in C++ .So, we use JNI to connect it to my java project for processing it. Now I am thinking of converting my whole project to JAVA. I need some suggestions, how I can create a CLI, that is the user must be able to telnet to the system where this service run to use the CLI . I dont have clear idea of how to implement it, is there any packages or some other thing available for it. Need your help. Thanks in advance.