Description of problem:
My server's management interfaces are secured with SSL certificate and I am trying to run

jboss-cli --connect --commands ":whoami" 

In case I did not permanently accept the certificate before nor configured it in jboss-cli.xml, process is blocked until I provide some input.

Version-Release number of selected component (if applicable):
all 6.x.x


Steps to Reproduce:
1. Secure native interface with SSL (and/or client certificate)
2. make sure $HOME/.jboss-cli.truststore does not exist
3. execute jboss-cli --connect --commands ":whoami"

Actual results:
In case I did not permanently accept the certificate before nor configured it in jboss-cli.xml, process is blocked until I provide some input.

Expected results:
I need to be able to run CLI with some special flag, so it terminates immediately in case client does not (yet) trust the server certificate. The use case is in RHQ Agent plugin, which can execute jboss-cli. If server's native interface is secured, our plugin get's blocked, because jboss-cli is waiting for input. We need to fix it, so the user at least knows, he has to properly configure jboss-cli.xml.

Additional info: