ExpectJ
Initially you may get confused, very soon you will get used to the confusion

ExpectJ is a Java implementation of the Unix expect utility. ExpectJ provides a Unix expect like support to write Java Programs that communicate with other programs and perform some operation on them.
If you are not familiar with working of the Unix expect utility, please refer to man page of expect. Usage of ExpectJ requires a proper understanding of the Unix expect utility.
For example using ExpectJ you can write a Java program that telnets to a host machine and deletes the contents of /tmp. This program when configured as a cron job will always keep the /tmp under the specified limit.

ExpectJ Releases:   

• ExpectJ 1.0
    User Documentation
    Readme
    Download Component
      - Classes
      - Source
      - Readme
      - User Documentation
      - Samples

Reporting bugs on ExpectJ
About the Author

Feel free to email me at sachintheonly@yahoo.com. I have my filters in place :)

Reporting bugs on ExpectJ:

You can report bugs/suggestions/enhancements in ExpectJ at sachintheonly@yahoo.com. I assure a prompt reply.
For bugs please make sure you include the following things in the bug description.

• Detailed steps/test cases to reproduce the bug.
• Your environment (OS etc.)
• Version of ExpectJ you are using.
• Stack trace (if available)
• ExpectJ log file, only available SmartPool 1.2 onwards.

If I can reproduce the bug, I will fix it at the earliest.