Returns the application {@code Session} associated with this Subject. If no session exists when this
method is called, a new session will be created, associated with this Subject, and then returned.
@return the application {@code Session} associated with this Subject.
@see #getSession(bool)
Returns the application {@code Session} associated with this Subject. If no session exists when this method is called, a new session will be created, associated with this Subject, and then returned.
@return the application {@code Session} associated with this Subject. @see #getSession(bool)