10.5.3 <recoverable-socket-condition>
<address-in-use>
Condition
Superclasses:
<recoverable-socket-condition>
A process on the machine is already bound to the same fully qualified address. This condition probably occurred because you were trying to use a port with an active server already installed, or a process crashed without closing a socket.
System and I/O Reference - 31 MAR 2000