Returns the session id of the session that should be associated with the constructed {@link Subject} instance.
<p/>
The construction process is expected to resolve the session with the specified id and then construct the Subject
instance based on the resolved session.
@return the session id of the session that should be associated with the constructed {@link Subject} instance.
Returns the session id of the session that should be associated with the constructed {@link Subject} instance. <p/> The construction process is expected to resolve the session with the specified id and then construct the Subject instance based on the resolved session.
@return the session id of the session that should be associated with the constructed {@link Subject} instance.