Description:

When doing a WSDL export, the BusinessConnect interior server log shows an error.

<<<<
....
12476 [main] INFO  tibcobc -  Registered for Peer updates
Error retrieving URL Data for: http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd: Connection refused
....
Subexception stack trace follows:
java.net.ConnectException: Connection refused
....
>>>>

Try these workarounds to resolve the issue: 

1). Make sure that the URL given in the WSDL (in this case "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd") is reachable from the machine where the BC instance is running.

2). If the xsd file is not reachable from the system where the BC instance is running, download the xsd file and store it on the system at a reachable location. Change the URL mentioned in WSDL to point to the local location.