read() hangs when stdin is a redirection from /dev/null

Hello, I'm seeing a regression in aesh behavior, actually jboss-cli. In the past if one runs jbosscli with ` < /dev/null` and password is required, then the command just failed and quit. I am guessing the read() call generated some exception.
Now the read call freezes forever instead. Ctrl+c fails to kill the process and `kill -9` is required.

This is really ugly beacause and error in an automation script or environment can cause problems to unsuspecting users. It also is a problem for some of our jboss-cli tests that check behavior of the cli interface.

I see the problem in current wildfly and EAP 6.1.1

See related bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=990227