Forum OpenACS Q&A: Response to Is someone interested in the ACS 4.x Java Chat Module for openacs 3.2.x?

I get this message:

[15/Mar/2002:16:49:04][4489.5126][-conn1-] Notice: Starting chat server
Exception in thread "main" java.lang.NumberFormatException:
    at java.lang.Integer.parseInt(Integer.java:435)
    at java.lang.Integer.parseInt(Integer.java:463)
    at adChatServer.main(adChatServer.java:88)

What could be wrong?