if ( username != null && this.username != null && username.length() > 0 && this.username.length() > 0
Log.log(Log.TRACE, MODULE, "setusername: " + username); if ( username != null && username.length() > 0
	public void setUsername( String username ) {		if ( username != null && this.username != null			&& username.length() > 0 && this.username.length() > 0			&& ! username.equals( this.username ) ) {						this.username = username;						logOut();		}	}