public static String getCommClass(boolean asyncIOEnabled) {
        // Check to see if the TCP class has been changed from its default value.
        // If it hasn't and the native z/OS AIO support is ready and able then update the
        // class to use the native z/OS support.
        if ((commClass != null) && commClass.equals(commClassNio) && asyncIOEnabled) {
            commClass = commClassAio;
        }

        return commClass;
    }
public static String getCommClass ( boolean asyncIOEnabled ) { if ( ( commClass != null ) && commClass . equals ( commClassNio ) && asyncIOEnabled ) { commClass = commClassAio ; } return commClass ; }
Access the TCP communication class to use (NIO, AIO, etc)

@return String